./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 8be7027f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/weaver/parallel-bluetooth.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 cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.perfect-tracechecks-8be7027-m [2024-11-12 20:43:47,224 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-12 20:43:47,299 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-12 20:43:47,305 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-12 20:43:47,305 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-12 20:43:47,326 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-12 20:43:47,327 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-12 20:43:47,327 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-12 20:43:47,328 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-12 20:43:47,328 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-12 20:43:47,328 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-12 20:43:47,329 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-12 20:43:47,331 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-12 20:43:47,336 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-12 20:43:47,336 INFO L153 SettingsManager]: * Use SBE=true [2024-11-12 20:43:47,336 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-12 20:43:47,337 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-12 20:43:47,337 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-12 20:43:47,337 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-12 20:43:47,337 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-12 20:43:47,337 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-12 20:43:47,338 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-12 20:43:47,338 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-12 20:43:47,338 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-12 20:43:47,339 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-12 20:43:47,339 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-12 20:43:47,339 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-12 20:43:47,339 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-12 20:43:47,339 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-12 20:43:47,340 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-12 20:43:47,340 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-12 20:43:47,340 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-12 20:43:47,340 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-12 20:43:47,341 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-12 20:43:47,341 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:43:47,341 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-12 20:43:47,342 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-12 20:43:47,342 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-12 20:43:47,342 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-12 20:43:47,342 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-12 20:43:47,342 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-12 20:43:47,343 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-12 20:43:47,343 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-12 20:43:47,343 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-12 20:43:47,343 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> cad856450cf6e95f9e7427e37ad4e3c8d32c703bbc90760a7f99cf9b3d00a8f5 [2024-11-12 20:43:47,659 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-12 20:43:47,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-12 20:43:47,687 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-12 20:43:47,689 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-12 20:43:47,689 INFO L274 PluginConnector]: CDTParser initialized [2024-11-12 20:43:47,691 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-11-12 20:43:49,103 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-12 20:43:49,307 INFO L384 CDTParser]: Found 1 translation units. [2024-11-12 20:43:49,308 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/weaver/parallel-bluetooth.wvr.c [2024-11-12 20:43:49,315 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c204bd0cb/89e1ff97aeca4639a3493824a7f46d49/FLAG83c91368f [2024-11-12 20:43:49,688 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c204bd0cb/89e1ff97aeca4639a3493824a7f46d49 [2024-11-12 20:43:49,690 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-12 20:43:49,692 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-12 20:43:49,694 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-12 20:43:49,694 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-12 20:43:49,699 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-12 20:43:49,700 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:49,703 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5637f87d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49, skipping insertion in model container [2024-11-12 20:43:49,703 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:49,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-12 20:43:49,924 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:43:49,938 INFO L200 MainTranslator]: Completed pre-run [2024-11-12 20:43:49,964 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-12 20:43:49,988 INFO L204 MainTranslator]: Completed translation [2024-11-12 20:43:49,989 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49 WrapperNode [2024-11-12 20:43:49,990 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-12 20:43:49,991 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-12 20:43:49,991 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-12 20:43:49,992 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-12 20:43:49,998 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,010 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,044 INFO L138 Inliner]: procedures = 18, calls = 17, calls flagged for inlining = 11, calls inlined = 11, statements flattened = 119 [2024-11-12 20:43:50,048 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-12 20:43:50,049 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-12 20:43:50,050 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-12 20:43:50,050 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-12 20:43:50,060 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,060 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,063 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,082 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]. [2024-11-12 20:43:50,083 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,083 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,089 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,092 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,093 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,094 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,097 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-12 20:43:50,098 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-12 20:43:50,098 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-12 20:43:50,098 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-12 20:43:50,099 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (1/1) ... [2024-11-12 20:43:50,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-12 20:43:50,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-12 20:43:50,140 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-12 20:43:50,142 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-12 20:43:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-12 20:43:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-11-12 20:43:50,182 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-11-12 20:43:50,182 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-11-12 20:43:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-11-12 20:43:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-12 20:43:50,183 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-12 20:43:50,183 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-12 20:43:50,185 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-12 20:43:50,293 INFO L238 CfgBuilder]: Building ICFG [2024-11-12 20:43:50,296 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-12 20:43:50,548 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-12 20:43:50,548 INFO L287 CfgBuilder]: Performing block encoding [2024-11-12 20:43:50,726 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-12 20:43:50,726 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-12 20:43:50,726 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:43:50 BoogieIcfgContainer [2024-11-12 20:43:50,726 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-12 20:43:50,732 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-12 20:43:50,735 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-12 20:43:50,738 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-12 20:43:50,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 08:43:49" (1/3) ... [2024-11-12 20:43:50,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769ac4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:43:50, skipping insertion in model container [2024-11-12 20:43:50,739 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 08:43:49" (2/3) ... [2024-11-12 20:43:50,739 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@769ac4ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 08:43:50, skipping insertion in model container [2024-11-12 20:43:50,740 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:43:50" (3/3) ... [2024-11-12 20:43:50,741 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bluetooth.wvr.c [2024-11-12 20:43:50,758 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-12 20:43:50,758 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 8 error locations. [2024-11-12 20:43:50,759 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-12 20:43:50,841 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-12 20:43:50,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 57 places, 53 transitions, 120 flow [2024-11-12 20:43:50,918 INFO L124 PetriNetUnfolderBase]: 3/51 cut-off events. [2024-11-12 20:43:50,918 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-12 20:43:50,922 INFO L83 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 51 events. 3/51 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 70 event pairs, 0 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 36. Up to 2 conditions per place. [2024-11-12 20:43:50,922 INFO L82 GeneralOperation]: Start removeDead. Operand has 57 places, 53 transitions, 120 flow [2024-11-12 20:43:50,926 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 53 places, 49 transitions, 107 flow [2024-11-12 20:43:50,937 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-12 20:43:50,947 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;@449d8cd1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-12 20:43:50,947 INFO L334 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2024-11-12 20:43:50,961 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-12 20:43:50,964 INFO L124 PetriNetUnfolderBase]: 1/22 cut-off events. [2024-11-12 20:43:50,965 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-12 20:43:50,965 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:43:50,966 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:43:50,966 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:43:50,974 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:43:50,974 INFO L85 PathProgramCache]: Analyzing trace with hash -285507582, now seen corresponding path program 1 times [2024-11-12 20:43:50,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:43:50,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [188743742] [2024-11-12 20:43:50,984 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:43:50,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:43:51,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:43:51,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:43:51,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:43:51,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [188743742] [2024-11-12 20:43:51,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [188743742] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:43:51,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:43:51,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:43:51,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65773222] [2024-11-12 20:43:51,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:43:51,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:43:51,375 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:43:51,402 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:43:51,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:43:51,417 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-11-12 20:43:51,420 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 49 transitions, 107 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:43:51,420 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:43:51,420 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-11-12 20:43:51,421 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:43:51,691 INFO L124 PetriNetUnfolderBase]: 321/674 cut-off events. [2024-11-12 20:43:51,691 INFO L125 PetriNetUnfolderBase]: For 32/32 co-relation queries the response was YES. [2024-11-12 20:43:51,699 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1251 conditions, 674 events. 321/674 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 70. Compared 3841 event pairs, 111 based on Foata normal form. 8/504 useless extension candidates. Maximal degree in co-relation 1168. Up to 371 conditions per place. [2024-11-12 20:43:51,709 INFO L140 encePairwiseOnDemand]: 39/53 looper letters, 39 selfloop transitions, 8 changer transitions 0/65 dead transitions. [2024-11-12 20:43:51,715 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 65 transitions, 239 flow [2024-11-12 20:43:51,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:43:51,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:43:51,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 113 transitions. [2024-11-12 20:43:51,735 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.710691823899371 [2024-11-12 20:43:51,738 INFO L175 Difference]: Start difference. First operand has 53 places, 49 transitions, 107 flow. Second operand 3 states and 113 transitions. [2024-11-12 20:43:51,738 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 65 transitions, 239 flow [2024-11-12 20:43:51,764 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 65 transitions, 231 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-12 20:43:51,772 INFO L231 Difference]: Finished difference. Result has 54 places, 56 transitions, 174 flow [2024-11-12 20:43:51,774 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=49, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=174, PETRI_PLACES=54, PETRI_TRANSITIONS=56} [2024-11-12 20:43:51,784 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2024-11-12 20:43:51,785 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 56 transitions, 174 flow [2024-11-12 20:43:51,785 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:43:51,785 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:43:51,785 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:43:51,785 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-12 20:43:51,786 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:43:51,786 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:43:51,786 INFO L85 PathProgramCache]: Analyzing trace with hash -285507581, now seen corresponding path program 1 times [2024-11-12 20:43:51,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:43:51,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1743968379] [2024-11-12 20:43:51,787 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:43:51,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:43:51,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:43:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:43:51,916 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:43:51,916 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1743968379] [2024-11-12 20:43:51,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1743968379] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:43:51,917 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:43:51,917 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-12 20:43:51,917 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [474174535] [2024-11-12 20:43:51,917 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:43:51,918 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-12 20:43:51,919 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:43:51,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-12 20:43:51,920 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-12 20:43:51,931 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-11-12 20:43:51,932 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 56 transitions, 174 flow. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:43:51,932 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:43:51,932 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-11-12 20:43:51,932 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:43:52,076 INFO L124 PetriNetUnfolderBase]: 312/692 cut-off events. [2024-11-12 20:43:52,076 INFO L125 PetriNetUnfolderBase]: For 376/376 co-relation queries the response was YES. [2024-11-12 20:43:52,081 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1601 conditions, 692 events. 312/692 cut-off events. For 376/376 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 4134 event pairs, 144 based on Foata normal form. 52/640 useless extension candidates. Maximal degree in co-relation 1071. Up to 353 conditions per place. [2024-11-12 20:43:52,088 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 44 selfloop transitions, 9 changer transitions 0/71 dead transitions. [2024-11-12 20:43:52,088 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 71 transitions, 331 flow [2024-11-12 20:43:52,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-12 20:43:52,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-12 20:43:52,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 109 transitions. [2024-11-12 20:43:52,091 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6855345911949685 [2024-11-12 20:43:52,091 INFO L175 Difference]: Start difference. First operand has 54 places, 56 transitions, 174 flow. Second operand 3 states and 109 transitions. [2024-11-12 20:43:52,092 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 71 transitions, 331 flow [2024-11-12 20:43:52,095 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 71 transitions, 313 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:43:52,098 INFO L231 Difference]: Finished difference. Result has 55 places, 59 transitions, 226 flow [2024-11-12 20:43:52,099 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=150, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=54, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=226, PETRI_PLACES=55, PETRI_TRANSITIONS=59} [2024-11-12 20:43:52,099 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 2 predicate places. [2024-11-12 20:43:52,100 INFO L471 AbstractCegarLoop]: Abstraction has has 55 places, 59 transitions, 226 flow [2024-11-12 20:43:52,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:43:52,100 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:43:52,101 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:43:52,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-12 20:43:52,101 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:43:52,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:43:52,103 INFO L85 PathProgramCache]: Analyzing trace with hash 505135654, now seen corresponding path program 1 times [2024-11-12 20:43:52,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:43:52,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [459909847] [2024-11-12 20:43:52,104 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:43:52,104 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:43:52,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:43:52,231 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:43:52,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:43:52,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [459909847] [2024-11-12 20:43:52,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [459909847] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:43:52,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:43:52,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:43:52,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686507710] [2024-11-12 20:43:52,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:43:52,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:43:52,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:43:52,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:43:52,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:43:52,246 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 20 out of 53 [2024-11-12 20:43:52,247 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 59 transitions, 226 flow. Second operand has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:43:52,247 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:43:52,247 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 20 of 53 [2024-11-12 20:43:52,248 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:43:52,375 INFO L124 PetriNetUnfolderBase]: 283/585 cut-off events. [2024-11-12 20:43:52,375 INFO L125 PetriNetUnfolderBase]: For 714/716 co-relation queries the response was YES. [2024-11-12 20:43:52,377 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1548 conditions, 585 events. 283/585 cut-off events. For 714/716 co-relation queries the response was YES. Maximal size of possible extension queue 49. Compared 3083 event pairs, 160 based on Foata normal form. 38/567 useless extension candidates. Maximal degree in co-relation 915. Up to 438 conditions per place. [2024-11-12 20:43:52,380 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 35 selfloop transitions, 11 changer transitions 0/64 dead transitions. [2024-11-12 20:43:52,380 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 55 places, 64 transitions, 332 flow [2024-11-12 20:43:52,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:43:52,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:43:52,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 124 transitions. [2024-11-12 20:43:52,382 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5849056603773585 [2024-11-12 20:43:52,382 INFO L175 Difference]: Start difference. First operand has 55 places, 59 transitions, 226 flow. Second operand 4 states and 124 transitions. [2024-11-12 20:43:52,382 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 55 places, 64 transitions, 332 flow [2024-11-12 20:43:52,384 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 53 places, 64 transitions, 308 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:43:52,385 INFO L231 Difference]: Finished difference. Result has 54 places, 59 transitions, 248 flow [2024-11-12 20:43:52,385 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=170, PETRI_DIFFERENCE_MINUEND_PLACES=50, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=41, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=248, PETRI_PLACES=54, PETRI_TRANSITIONS=59} [2024-11-12 20:43:52,386 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 1 predicate places. [2024-11-12 20:43:52,386 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 59 transitions, 248 flow [2024-11-12 20:43:52,387 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 23.0) internal successors, (92), 4 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:43:52,387 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:43:52,387 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:43:52,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-12 20:43:52,388 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:43:52,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:43:52,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1946493306, now seen corresponding path program 1 times [2024-11-12 20:43:52,389 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:43:52,389 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1711556353] [2024-11-12 20:43:52,389 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:43:52,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:43:52,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:43:52,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:43:52,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:43:52,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1711556353] [2024-11-12 20:43:52,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1711556353] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:43:52,484 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:43:52,484 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-12 20:43:52,484 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060443142] [2024-11-12 20:43:52,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:43:52,485 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-12 20:43:52,485 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:43:52,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-12 20:43:52,486 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-12 20:43:52,504 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-11-12 20:43:52,505 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 59 transitions, 248 flow. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:43:52,505 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:43:52,505 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-11-12 20:43:52,505 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:43:52,677 INFO L124 PetriNetUnfolderBase]: 490/1030 cut-off events. [2024-11-12 20:43:52,677 INFO L125 PetriNetUnfolderBase]: For 1136/1136 co-relation queries the response was YES. [2024-11-12 20:43:52,681 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2536 conditions, 1030 events. 490/1030 cut-off events. For 1136/1136 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 6065 event pairs, 74 based on Foata normal form. 76/1087 useless extension candidates. Maximal degree in co-relation 1472. Up to 387 conditions per place. [2024-11-12 20:43:52,683 INFO L140 encePairwiseOnDemand]: 38/53 looper letters, 36 selfloop transitions, 12 changer transitions 20/84 dead transitions. [2024-11-12 20:43:52,683 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 56 places, 84 transitions, 474 flow [2024-11-12 20:43:52,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-12 20:43:52,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-12 20:43:52,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 132 transitions. [2024-11-12 20:43:52,686 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.6226415094339622 [2024-11-12 20:43:52,687 INFO L175 Difference]: Start difference. First operand has 54 places, 59 transitions, 248 flow. Second operand 4 states and 132 transitions. [2024-11-12 20:43:52,687 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 56 places, 84 transitions, 474 flow [2024-11-12 20:43:52,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 54 places, 84 transitions, 458 flow, removed 0 selfloop flow, removed 2 redundant places. [2024-11-12 20:43:52,692 INFO L231 Difference]: Finished difference. Result has 57 places, 53 transitions, 266 flow [2024-11-12 20:43:52,693 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=214, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=266, PETRI_PLACES=57, PETRI_TRANSITIONS=53} [2024-11-12 20:43:52,693 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 4 predicate places. [2024-11-12 20:43:52,693 INFO L471 AbstractCegarLoop]: Abstraction has has 57 places, 53 transitions, 266 flow [2024-11-12 20:43:52,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:43:52,694 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:43:52,695 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:43:52,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-12 20:43:52,695 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:43:52,696 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:43:52,696 INFO L85 PathProgramCache]: Analyzing trace with hash -1901636038, now seen corresponding path program 1 times [2024-11-12 20:43:52,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:43:52,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792323371] [2024-11-12 20:43:52,696 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:43:52,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:43:52,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:43:52,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:43:52,828 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:43:52,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792323371] [2024-11-12 20:43:52,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792323371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:43:52,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:43:52,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:43:52,829 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1936173024] [2024-11-12 20:43:52,829 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:43:52,830 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:43:52,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:43:52,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:43:52,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:43:52,838 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-11-12 20:43:52,839 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 57 places, 53 transitions, 266 flow. Second operand has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:43:52,839 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:43:52,839 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-11-12 20:43:52,839 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:43:52,980 INFO L124 PetriNetUnfolderBase]: 193/502 cut-off events. [2024-11-12 20:43:52,981 INFO L125 PetriNetUnfolderBase]: For 968/974 co-relation queries the response was YES. [2024-11-12 20:43:52,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1363 conditions, 502 events. 193/502 cut-off events. For 968/974 co-relation queries the response was YES. Maximal size of possible extension queue 43. Compared 2679 event pairs, 48 based on Foata normal form. 20/514 useless extension candidates. Maximal degree in co-relation 1058. Up to 218 conditions per place. [2024-11-12 20:43:52,984 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 32 selfloop transitions, 10 changer transitions 15/73 dead transitions. [2024-11-12 20:43:52,984 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 73 transitions, 432 flow [2024-11-12 20:43:52,984 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:43:52,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:43:52,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 149 transitions. [2024-11-12 20:43:52,985 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5622641509433962 [2024-11-12 20:43:52,985 INFO L175 Difference]: Start difference. First operand has 57 places, 53 transitions, 266 flow. Second operand 5 states and 149 transitions. [2024-11-12 20:43:52,985 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 73 transitions, 432 flow [2024-11-12 20:43:52,988 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 58 places, 73 transitions, 406 flow, removed 5 selfloop flow, removed 3 redundant places. [2024-11-12 20:43:52,989 INFO L231 Difference]: Finished difference. Result has 60 places, 48 transitions, 235 flow [2024-11-12 20:43:52,989 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=213, PETRI_DIFFERENCE_MINUEND_PLACES=54, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=50, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=40, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=235, PETRI_PLACES=60, PETRI_TRANSITIONS=48} [2024-11-12 20:43:52,990 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 7 predicate places. [2024-11-12 20:43:52,990 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 48 transitions, 235 flow [2024-11-12 20:43:52,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.2) internal successors, (106), 5 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-12 20:43:52,991 INFO L198 CegarLoopForPetriNet]: Found error trace [2024-11-12 20:43:52,991 INFO L206 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-12 20:43:52,991 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-12 20:43:52,991 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2024-11-12 20:43:52,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-12 20:43:52,992 INFO L85 PathProgramCache]: Analyzing trace with hash -1035565289, now seen corresponding path program 1 times [2024-11-12 20:43:52,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-12 20:43:52,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014364961] [2024-11-12 20:43:52,992 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-12 20:43:52,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-12 20:43:53,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-12 20:43:53,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-12 20:43:53,070 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-12 20:43:53,070 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014364961] [2024-11-12 20:43:53,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014364961] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-12 20:43:53,071 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-12 20:43:53,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-12 20:43:53,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175667091] [2024-11-12 20:43:53,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-12 20:43:53,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-12 20:43:53,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-12 20:43:53,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-12 20:43:53,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2024-11-12 20:43:53,089 INFO L469 CegarLoopForPetriNet]: Number of universal loopers: 18 out of 53 [2024-11-12 20:43:53,089 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 48 transitions, 235 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) [2024-11-12 20:43:53,090 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-12 20:43:53,090 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 18 of 53 [2024-11-12 20:43:53,090 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-12 20:43:53,193 INFO L124 PetriNetUnfolderBase]: 131/353 cut-off events. [2024-11-12 20:43:53,193 INFO L125 PetriNetUnfolderBase]: For 875/875 co-relation queries the response was YES. [2024-11-12 20:43:53,194 INFO L83 FinitePrefix]: Finished finitePrefix Result has 974 conditions, 353 events. 131/353 cut-off events. For 875/875 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1616 event pairs, 19 based on Foata normal form. 39/386 useless extension candidates. Maximal degree in co-relation 728. Up to 129 conditions per place. [2024-11-12 20:43:53,195 INFO L140 encePairwiseOnDemand]: 40/53 looper letters, 0 selfloop transitions, 0 changer transitions 57/57 dead transitions. [2024-11-12 20:43:53,195 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 57 transitions, 321 flow [2024-11-12 20:43:53,195 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-12 20:43:53,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2024-11-12 20:43:53,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 136 transitions. [2024-11-12 20:43:53,196 INFO L514 CegarLoopForPetriNet]: DFA transition density 0.5132075471698113 [2024-11-12 20:43:53,197 INFO L175 Difference]: Start difference. First operand has 60 places, 48 transitions, 235 flow. Second operand 5 states and 136 transitions. [2024-11-12 20:43:53,197 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 57 transitions, 321 flow [2024-11-12 20:43:53,199 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 57 transitions, 274 flow, removed 9 selfloop flow, removed 4 redundant places. [2024-11-12 20:43:53,199 INFO L231 Difference]: Finished difference. Result has 56 places, 0 transitions, 0 flow [2024-11-12 20:43:53,200 INFO L262 CegarLoopForPetriNet]: {PETRI_ALPHABET=53, PETRI_DIFFERENCE_MINUEND_FLOW=161, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=56, PETRI_TRANSITIONS=0} [2024-11-12 20:43:53,201 INFO L279 CegarLoopForPetriNet]: 53 programPoint places, 3 predicate places. [2024-11-12 20:43:53,201 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 0 transitions, 0 flow [2024-11-12 20:43:53,202 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) [2024-11-12 20:43:53,207 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 18 remaining) [2024-11-12 20:43:53,208 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 18 remaining) [2024-11-12 20:43:53,209 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 18 remaining) [2024-11-12 20:43:53,209 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 18 remaining) [2024-11-12 20:43:53,209 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 18 remaining) [2024-11-12 20:43:53,209 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 18 remaining) [2024-11-12 20:43:53,209 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 18 remaining) [2024-11-12 20:43:53,209 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 18 remaining) [2024-11-12 20:43:53,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (9 of 18 remaining) [2024-11-12 20:43:53,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (8 of 18 remaining) [2024-11-12 20:43:53,210 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 18 remaining) [2024-11-12 20:43:53,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 18 remaining) [2024-11-12 20:43:53,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 18 remaining) [2024-11-12 20:43:53,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 18 remaining) [2024-11-12 20:43:53,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 18 remaining) [2024-11-12 20:43:53,211 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 18 remaining) [2024-11-12 20:43:53,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 18 remaining) [2024-11-12 20:43:53,212 INFO L782 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 18 remaining) [2024-11-12 20:43:53,212 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-12 20:43:53,212 INFO L421 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2024-11-12 20:43:53,218 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-12 20:43:53,218 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-12 20:43:53,223 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 08:43:53 BasicIcfg [2024-11-12 20:43:53,223 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-12 20:43:53,224 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-12 20:43:53,224 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-12 20:43:53,224 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-12 20:43:53,225 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 08:43:50" (3/4) ... [2024-11-12 20:43:53,226 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-12 20:43:53,229 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-11-12 20:43:53,230 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-11-12 20:43:53,236 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 88 nodes and edges [2024-11-12 20:43:53,236 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2024-11-12 20:43:53,237 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-12 20:43:53,237 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-12 20:43:53,323 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-12 20:43:53,324 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-12 20:43:53,324 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-12 20:43:53,325 INFO L158 Benchmark]: Toolchain (without parser) took 3632.32ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 122.9MB in the beginning and 96.9MB in the end (delta: 25.9MB). Peak memory consumption was 56.5MB. Max. memory is 16.1GB. [2024-11-12 20:43:53,325 INFO L158 Benchmark]: CDTParser took 0.92ms. Allocated memory is still 109.1MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-12 20:43:53,325 INFO L158 Benchmark]: CACSL2BoogieTranslator took 296.95ms. Allocated memory is still 153.1MB. Free memory was 122.9MB in the beginning and 110.5MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-11-12 20:43:53,325 INFO L158 Benchmark]: Boogie Procedure Inliner took 57.43ms. Allocated memory is still 153.1MB. Free memory was 110.5MB in the beginning and 108.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:43:53,326 INFO L158 Benchmark]: Boogie Preprocessor took 47.59ms. Allocated memory is still 153.1MB. Free memory was 108.4MB in the beginning and 106.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-12 20:43:53,326 INFO L158 Benchmark]: RCFGBuilder took 628.99ms. Allocated memory is still 153.1MB. Free memory was 106.1MB in the beginning and 97.9MB in the end (delta: 8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-12 20:43:53,326 INFO L158 Benchmark]: TraceAbstraction took 2491.29ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 96.8MB in the beginning and 102.2MB in the end (delta: -5.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. [2024-11-12 20:43:53,326 INFO L158 Benchmark]: Witness Printer took 100.17ms. Allocated memory is still 184.5MB. Free memory was 102.2MB in the beginning and 96.9MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-12 20:43:53,328 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.92ms. Allocated memory is still 109.1MB. Free memory is still 80.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 296.95ms. Allocated memory is still 153.1MB. Free memory was 122.9MB in the beginning and 110.5MB in the end (delta: 12.4MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 57.43ms. Allocated memory is still 153.1MB. Free memory was 110.5MB in the beginning and 108.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 47.59ms. Allocated memory is still 153.1MB. Free memory was 108.4MB in the beginning and 106.1MB in the end (delta: 2.3MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 628.99ms. Allocated memory is still 153.1MB. Free memory was 106.1MB in the beginning and 97.9MB in the end (delta: 8.2MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * TraceAbstraction took 2491.29ms. Allocated memory was 153.1MB in the beginning and 184.5MB in the end (delta: 31.5MB). Free memory was 96.8MB in the beginning and 102.2MB in the end (delta: -5.3MB). Peak memory consumption was 29.2MB. Max. memory is 16.1GB. * Witness Printer took 100.17ms. Allocated memory is still 184.5MB. Free memory was 102.2MB in the beginning and 96.9MB 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: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 42]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 55]: 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 - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 83 locations, 18 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 163 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 128 mSDsluCounter, 6 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 438 IncrementalHoareTripleChecker+Invalid, 513 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 6 mSDtfsCounter, 438 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=266occurred in iteration=4, InterpolantAutomatonStates: 24, 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, 0.7s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 118 ConstructedInterpolants, 0 QuantifiedInterpolants, 214 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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 8 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-12 20:43:53,355 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE