./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-theta/unwind2-100.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3289d67d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-theta/unwind2-100.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7857262d4d8d027aa598d94064d6edf426fece06c8ec09601338aa41711d7f37 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-17 07:59:16,312 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-17 07:59:16,354 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-17 07:59:16,357 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-17 07:59:16,357 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-17 07:59:16,372 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-17 07:59:16,373 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-17 07:59:16,373 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-17 07:59:16,374 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-17 07:59:16,374 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-17 07:59:16,374 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-17 07:59:16,375 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-17 07:59:16,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-17 07:59:16,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-17 07:59:16,376 INFO L153 SettingsManager]: * Use SBE=true [2024-11-17 07:59:16,376 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-17 07:59:16,376 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-17 07:59:16,377 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-17 07:59:16,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-17 07:59:16,377 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-17 07:59:16,377 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-17 07:59:16,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-17 07:59:16,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-17 07:59:16,378 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-17 07:59:16,379 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-17 07:59:16,379 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-17 07:59:16,379 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-17 07:59:16,379 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-17 07:59:16,380 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-17 07:59:16,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-17 07:59:16,380 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-17 07:59:16,381 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-17 07:59:16,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-17 07:59:16,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-17 07:59:16,381 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:59:16,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-17 07:59:16,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-17 07:59:16,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-17 07:59:16,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-17 07:59:16,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-17 07:59:16,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-17 07:59:16,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-17 07:59:16,384 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-17 07:59:16,384 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-17 07:59:16,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7857262d4d8d027aa598d94064d6edf426fece06c8ec09601338aa41711d7f37 [2024-11-17 07:59:16,560 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-17 07:59:16,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-17 07:59:16,581 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-17 07:59:16,582 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-17 07:59:16,583 INFO L274 PluginConnector]: CDTParser initialized [2024-11-17 07:59:16,584 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind2-100.i [2024-11-17 07:59:17,880 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-17 07:59:18,108 INFO L384 CDTParser]: Found 1 translation units. [2024-11-17 07:59:18,109 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind2-100.i [2024-11-17 07:59:18,128 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0c2cc84/3d95d3ea8a5547bb82a6c193bbb6d438/FLAG6386dae5a [2024-11-17 07:59:18,144 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/df0c2cc84/3d95d3ea8a5547bb82a6c193bbb6d438 [2024-11-17 07:59:18,149 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-17 07:59:18,150 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-17 07:59:18,153 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-17 07:59:18,153 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-17 07:59:18,158 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-17 07:59:18,159 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,160 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2c7b8ddb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18, skipping insertion in model container [2024-11-17 07:59:18,160 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,198 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-17 07:59:18,498 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:59:18,506 INFO L200 MainTranslator]: Completed pre-run [2024-11-17 07:59:18,587 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-17 07:59:18,646 INFO L204 MainTranslator]: Completed translation [2024-11-17 07:59:18,646 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18 WrapperNode [2024-11-17 07:59:18,647 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-17 07:59:18,648 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-17 07:59:18,648 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-17 07:59:18,648 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-17 07:59:18,653 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,668 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,688 INFO L138 Inliner]: procedures = 169, calls = 12, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 89 [2024-11-17 07:59:18,689 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-17 07:59:18,689 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-17 07:59:18,689 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-17 07:59:18,690 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-17 07:59:18,697 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,698 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,701 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,723 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]. [2024-11-17 07:59:18,723 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,723 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,731 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,731 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,732 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,737 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,740 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-17 07:59:18,743 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-17 07:59:18,743 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-17 07:59:18,743 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-17 07:59:18,744 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (1/1) ... [2024-11-17 07:59:18,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-17 07:59:18,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:18,778 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) [2024-11-17 07:59:18,783 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 [2024-11-17 07:59:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-17 07:59:18,840 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-17 07:59:18,840 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-17 07:59:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-17 07:59:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-17 07:59:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-17 07:59:18,841 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-17 07:59:18,841 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-17 07:59:18,842 WARN L225 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-17 07:59:18,939 INFO L256 CfgBuilder]: Building ICFG [2024-11-17 07:59:18,941 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-17 07:59:19,095 INFO L303 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-17 07:59:19,095 INFO L307 CfgBuilder]: Performing block encoding [2024-11-17 07:59:19,202 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-17 07:59:19,203 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-17 07:59:19,203 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:59:19 BoogieIcfgContainer [2024-11-17 07:59:19,203 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-17 07:59:19,205 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-17 07:59:19,205 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-17 07:59:19,207 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-17 07:59:19,208 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:59:18" (1/3) ... [2024-11-17 07:59:19,209 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b779664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:59:19, skipping insertion in model container [2024-11-17 07:59:19,209 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:59:18" (2/3) ... [2024-11-17 07:59:19,210 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b779664 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:59:19, skipping insertion in model container [2024-11-17 07:59:19,210 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:59:19" (3/3) ... [2024-11-17 07:59:19,211 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind2-100.i [2024-11-17 07:59:19,225 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-17 07:59:19,225 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-17 07:59:19,225 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-17 07:59:19,272 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-17 07:59:19,298 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 41 places, 38 transitions, 90 flow [2024-11-17 07:59:19,318 INFO L124 PetriNetUnfolderBase]: 4/36 cut-off events. [2024-11-17 07:59:19,318 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-17 07:59:19,321 INFO L83 FinitePrefix]: Finished finitePrefix Result has 45 conditions, 36 events. 4/36 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 67 event pairs, 0 based on Foata normal form. 0/26 useless extension candidates. Maximal degree in co-relation 33. Up to 2 conditions per place. [2024-11-17 07:59:19,321 INFO L82 GeneralOperation]: Start removeDead. Operand has 41 places, 38 transitions, 90 flow [2024-11-17 07:59:19,323 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 37 places, 34 transitions, 77 flow [2024-11-17 07:59:19,329 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-17 07:59:19,336 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;@4bec9e66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-17 07:59:19,337 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-17 07:59:19,341 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-17 07:59:19,342 INFO L124 PetriNetUnfolderBase]: 0/10 cut-off events. [2024-11-17 07:59:19,342 INFO L125 PetriNetUnfolderBase]: For 0/0 co-relation queries the response was YES. [2024-11-17 07:59:19,342 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:19,342 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-17 07:59:19,343 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:19,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:19,347 INFO L85 PathProgramCache]: Analyzing trace with hash -1504727710, now seen corresponding path program 1 times [2024-11-17 07:59:19,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:19,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201288128] [2024-11-17 07:59:19,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:19,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:19,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:19,528 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:19,530 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:19,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201288128] [2024-11-17 07:59:19,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201288128] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:19,531 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:59:19,531 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:59:19,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735947293] [2024-11-17 07:59:19,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:19,539 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:59:19,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:19,561 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:59:19,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:59:19,568 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-17 07:59:19,570 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 37 places, 34 transitions, 77 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-17 07:59:19,570 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:19,571 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-17 07:59:19,571 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:19,671 INFO L124 PetriNetUnfolderBase]: 165/363 cut-off events. [2024-11-17 07:59:19,672 INFO L125 PetriNetUnfolderBase]: For 20/20 co-relation queries the response was YES. [2024-11-17 07:59:19,673 INFO L83 FinitePrefix]: Finished finitePrefix Result has 671 conditions, 363 events. 165/363 cut-off events. For 20/20 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1702 event pairs, 134 based on Foata normal form. 44/364 useless extension candidates. Maximal degree in co-relation 621. Up to 282 conditions per place. [2024-11-17 07:59:19,676 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 19 selfloop transitions, 1 changer transitions 0/31 dead transitions. [2024-11-17 07:59:19,676 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 31 transitions, 111 flow [2024-11-17 07:59:19,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:59:19,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:59:19,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 62 transitions. [2024-11-17 07:59:19,687 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.543859649122807 [2024-11-17 07:59:19,689 INFO L175 Difference]: Start difference. First operand has 37 places, 34 transitions, 77 flow. Second operand 3 states and 62 transitions. [2024-11-17 07:59:19,689 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 31 transitions, 111 flow [2024-11-17 07:59:19,691 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 31 transitions, 106 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-17 07:59:19,693 INFO L231 Difference]: Finished difference. Result has 35 places, 31 transitions, 68 flow [2024-11-17 07:59:19,694 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=68, PETRI_PLACES=35, PETRI_TRANSITIONS=31} [2024-11-17 07:59:19,697 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2024-11-17 07:59:19,697 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 31 transitions, 68 flow [2024-11-17 07:59:19,697 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-17 07:59:19,698 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:19,698 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:19,698 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-17 07:59:19,699 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:19,700 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:19,700 INFO L85 PathProgramCache]: Analyzing trace with hash 598081455, now seen corresponding path program 1 times [2024-11-17 07:59:19,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:19,700 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1294252878] [2024-11-17 07:59:19,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:19,700 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:19,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:19,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:19,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1294252878] [2024-11-17 07:59:19,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1294252878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:19,743 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:59:19,743 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-17 07:59:19,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399423389] [2024-11-17 07:59:19,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:19,744 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-17 07:59:19,744 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:19,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-17 07:59:19,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-17 07:59:19,752 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-17 07:59:19,752 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 31 transitions, 68 flow. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-17 07:59:19,752 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:19,752 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-17 07:59:19,753 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:19,799 INFO L124 PetriNetUnfolderBase]: 146/331 cut-off events. [2024-11-17 07:59:19,800 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 07:59:19,801 INFO L83 FinitePrefix]: Finished finitePrefix Result has 598 conditions, 331 events. 146/331 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1505 event pairs, 117 based on Foata normal form. 0/301 useless extension candidates. Maximal degree in co-relation 592. Up to 250 conditions per place. [2024-11-17 07:59:19,802 INFO L140 encePairwiseOnDemand]: 36/38 looper letters, 18 selfloop transitions, 1 changer transitions 0/30 dead transitions. [2024-11-17 07:59:19,802 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 36 places, 30 transitions, 104 flow [2024-11-17 07:59:19,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-17 07:59:19,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-17 07:59:19,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 59 transitions. [2024-11-17 07:59:19,803 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5175438596491229 [2024-11-17 07:59:19,803 INFO L175 Difference]: Start difference. First operand has 35 places, 31 transitions, 68 flow. Second operand 3 states and 59 transitions. [2024-11-17 07:59:19,804 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 36 places, 30 transitions, 104 flow [2024-11-17 07:59:19,804 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 35 places, 30 transitions, 103 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:59:19,804 INFO L231 Difference]: Finished difference. Result has 35 places, 30 transitions, 67 flow [2024-11-17 07:59:19,805 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=65, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=67, PETRI_PLACES=35, PETRI_TRANSITIONS=30} [2024-11-17 07:59:19,805 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, -2 predicate places. [2024-11-17 07:59:19,805 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 30 transitions, 67 flow [2024-11-17 07:59:19,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-17 07:59:19,805 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:19,806 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:19,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-17 07:59:19,806 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:19,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:19,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1849814486, now seen corresponding path program 1 times [2024-11-17 07:59:19,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:19,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619505100] [2024-11-17 07:59:19,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:19,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:19,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:19,892 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:19,893 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:19,893 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619505100] [2024-11-17 07:59:19,893 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619505100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:19,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:59:19,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:59:19,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250331448] [2024-11-17 07:59:19,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:19,894 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:59:19,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:19,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:59:19,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:59:19,904 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-17 07:59:19,905 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 30 transitions, 67 flow. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2024-11-17 07:59:19,905 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:19,905 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-17 07:59:19,905 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:20,077 INFO L124 PetriNetUnfolderBase]: 268/593 cut-off events. [2024-11-17 07:59:20,077 INFO L125 PetriNetUnfolderBase]: For 4/4 co-relation queries the response was YES. [2024-11-17 07:59:20,080 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1080 conditions, 593 events. 268/593 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 3079 event pairs, 159 based on Foata normal form. 16/560 useless extension candidates. Maximal degree in co-relation 1073. Up to 329 conditions per place. [2024-11-17 07:59:20,084 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 42 selfloop transitions, 3 changer transitions 0/54 dead transitions. [2024-11-17 07:59:20,084 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 54 transitions, 210 flow [2024-11-17 07:59:20,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:59:20,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:59:20,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 99 transitions. [2024-11-17 07:59:20,087 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6513157894736842 [2024-11-17 07:59:20,087 INFO L175 Difference]: Start difference. First operand has 35 places, 30 transitions, 67 flow. Second operand 4 states and 99 transitions. [2024-11-17 07:59:20,087 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 54 transitions, 210 flow [2024-11-17 07:59:20,088 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 54 transitions, 209 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:59:20,090 INFO L231 Difference]: Finished difference. Result has 39 places, 32 transitions, 88 flow [2024-11-17 07:59:20,091 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=27, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=88, PETRI_PLACES=39, PETRI_TRANSITIONS=32} [2024-11-17 07:59:20,091 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 2 predicate places. [2024-11-17 07:59:20,091 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 32 transitions, 88 flow [2024-11-17 07:59:20,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 4 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) [2024-11-17 07:59:20,092 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:20,092 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:20,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-17 07:59:20,093 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:20,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:20,093 INFO L85 PathProgramCache]: Analyzing trace with hash 2108405680, now seen corresponding path program 1 times [2024-11-17 07:59:20,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:20,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53721771] [2024-11-17 07:59:20,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:20,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:20,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:20,198 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:20,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:20,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53721771] [2024-11-17 07:59:20,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [53721771] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:20,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1691363162] [2024-11-17 07:59:20,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:20,199 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:20,199 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:20,203 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:20,205 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-17 07:59:20,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:20,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:59:20,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:20,312 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:20,312 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:59:20,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1691363162] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:20,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:59:20,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 07:59:20,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707652588] [2024-11-17 07:59:20,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:20,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:59:20,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:20,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:59:20,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:59:20,327 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-17 07:59:20,328 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 32 transitions, 88 flow. Second operand has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-11-17 07:59:20,328 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:20,328 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-17 07:59:20,328 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:20,528 INFO L124 PetriNetUnfolderBase]: 245/549 cut-off events. [2024-11-17 07:59:20,528 INFO L125 PetriNetUnfolderBase]: For 140/140 co-relation queries the response was YES. [2024-11-17 07:59:20,529 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1125 conditions, 549 events. 245/549 cut-off events. For 140/140 co-relation queries the response was YES. Maximal size of possible extension queue 39. Compared 2798 event pairs, 48 based on Foata normal form. 16/540 useless extension candidates. Maximal degree in co-relation 1116. Up to 108 conditions per place. [2024-11-17 07:59:20,531 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 59 selfloop transitions, 5 changer transitions 0/73 dead transitions. [2024-11-17 07:59:20,531 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 73 transitions, 305 flow [2024-11-17 07:59:20,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:59:20,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:59:20,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 143 transitions. [2024-11-17 07:59:20,532 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6271929824561403 [2024-11-17 07:59:20,532 INFO L175 Difference]: Start difference. First operand has 39 places, 32 transitions, 88 flow. Second operand 6 states and 143 transitions. [2024-11-17 07:59:20,533 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 73 transitions, 305 flow [2024-11-17 07:59:20,534 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 42 places, 73 transitions, 303 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:59:20,535 INFO L231 Difference]: Finished difference. Result has 42 places, 31 transitions, 92 flow [2024-11-17 07:59:20,535 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=82, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=92, PETRI_PLACES=42, PETRI_TRANSITIONS=31} [2024-11-17 07:59:20,536 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 5 predicate places. [2024-11-17 07:59:20,536 INFO L471 AbstractCegarLoop]: Abstraction has has 42 places, 31 transitions, 92 flow [2024-11-17 07:59:20,536 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 14.5) internal successors, (87), 6 states have internal predecessors, (87), 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) [2024-11-17 07:59:20,536 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:20,536 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:20,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-17 07:59:20,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:20,741 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:20,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:20,742 INFO L85 PathProgramCache]: Analyzing trace with hash -1185239226, now seen corresponding path program 1 times [2024-11-17 07:59:20,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:20,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [444442956] [2024-11-17 07:59:20,743 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:20,743 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:20,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:20,777 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:20,778 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:20,778 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [444442956] [2024-11-17 07:59:20,778 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [444442956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:20,778 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-17 07:59:20,778 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-17 07:59:20,778 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073698579] [2024-11-17 07:59:20,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:20,779 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-17 07:59:20,779 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:20,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-17 07:59:20,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-17 07:59:20,786 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-17 07:59:20,787 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 42 places, 31 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-11-17 07:59:20,787 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:20,787 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-17 07:59:20,787 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:20,953 INFO L124 PetriNetUnfolderBase]: 367/770 cut-off events. [2024-11-17 07:59:20,953 INFO L125 PetriNetUnfolderBase]: For 502/522 co-relation queries the response was YES. [2024-11-17 07:59:20,954 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1711 conditions, 770 events. 367/770 cut-off events. For 502/522 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4117 event pairs, 240 based on Foata normal form. 20/743 useless extension candidates. Maximal degree in co-relation 1702. Up to 480 conditions per place. [2024-11-17 07:59:20,957 INFO L140 encePairwiseOnDemand]: 33/38 looper letters, 43 selfloop transitions, 3 changer transitions 0/54 dead transitions. [2024-11-17 07:59:20,957 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 54 transitions, 276 flow [2024-11-17 07:59:20,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-17 07:59:20,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-17 07:59:20,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 94 transitions. [2024-11-17 07:59:20,960 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.618421052631579 [2024-11-17 07:59:20,960 INFO L175 Difference]: Start difference. First operand has 42 places, 31 transitions, 92 flow. Second operand 4 states and 94 transitions. [2024-11-17 07:59:20,960 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 54 transitions, 276 flow [2024-11-17 07:59:20,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 54 transitions, 249 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-17 07:59:20,962 INFO L231 Difference]: Finished difference. Result has 43 places, 33 transitions, 105 flow [2024-11-17 07:59:20,962 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=83, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=31, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=105, PETRI_PLACES=43, PETRI_TRANSITIONS=33} [2024-11-17 07:59:20,964 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 6 predicate places. [2024-11-17 07:59:20,965 INFO L471 AbstractCegarLoop]: Abstraction has has 43 places, 33 transitions, 105 flow [2024-11-17 07:59:20,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 15.5) internal successors, (62), 4 states have internal predecessors, (62), 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) [2024-11-17 07:59:20,965 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:20,965 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:20,966 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-17 07:59:20,967 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:20,967 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:20,967 INFO L85 PathProgramCache]: Analyzing trace with hash 936066844, now seen corresponding path program 1 times [2024-11-17 07:59:20,967 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:20,968 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078797459] [2024-11-17 07:59:20,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:20,968 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:21,045 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:21,046 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:21,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078797459] [2024-11-17 07:59:21,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078797459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:21,046 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1794782680] [2024-11-17 07:59:21,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:21,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:21,047 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:21,048 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:21,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-17 07:59:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:21,097 INFO L255 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:59:21,098 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:21,128 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:21,128 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:59:21,171 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:21,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1794782680] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:59:21,172 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:59:21,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-17 07:59:21,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374048074] [2024-11-17 07:59:21,172 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:59:21,173 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:59:21,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:21,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:59:21,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:59:21,198 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-17 07:59:21,198 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 33 transitions, 105 flow. Second operand has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 12 states have internal predecessors, (173), 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) [2024-11-17 07:59:21,199 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:21,199 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-17 07:59:21,199 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:21,518 INFO L124 PetriNetUnfolderBase]: 659/1520 cut-off events. [2024-11-17 07:59:21,518 INFO L125 PetriNetUnfolderBase]: For 894/947 co-relation queries the response was YES. [2024-11-17 07:59:21,521 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3398 conditions, 1520 events. 659/1520 cut-off events. For 894/947 co-relation queries the response was YES. Maximal size of possible extension queue 58. Compared 9420 event pairs, 198 based on Foata normal form. 66/1568 useless extension candidates. Maximal degree in co-relation 3388. Up to 401 conditions per place. [2024-11-17 07:59:21,525 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 125 selfloop transitions, 9 changer transitions 0/143 dead transitions. [2024-11-17 07:59:21,525 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 52 places, 143 transitions, 743 flow [2024-11-17 07:59:21,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:59:21,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:59:21,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 249 transitions. [2024-11-17 07:59:21,529 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6552631578947369 [2024-11-17 07:59:21,529 INFO L175 Difference]: Start difference. First operand has 43 places, 33 transitions, 105 flow. Second operand 10 states and 249 transitions. [2024-11-17 07:59:21,529 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 52 places, 143 transitions, 743 flow [2024-11-17 07:59:21,532 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 51 places, 143 transitions, 725 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-17 07:59:21,533 INFO L231 Difference]: Finished difference. Result has 54 places, 39 transitions, 167 flow [2024-11-17 07:59:21,533 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=167, PETRI_PLACES=54, PETRI_TRANSITIONS=39} [2024-11-17 07:59:21,533 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 17 predicate places. [2024-11-17 07:59:21,534 INFO L471 AbstractCegarLoop]: Abstraction has has 54 places, 39 transitions, 167 flow [2024-11-17 07:59:21,534 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.416666666666666) internal successors, (173), 12 states have internal predecessors, (173), 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) [2024-11-17 07:59:21,534 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:21,534 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:21,546 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-17 07:59:21,738 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-17 07:59:21,739 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:21,740 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:21,740 INFO L85 PathProgramCache]: Analyzing trace with hash 581813536, now seen corresponding path program 1 times [2024-11-17 07:59:21,740 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:21,740 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364712077] [2024-11-17 07:59:21,740 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:21,740 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:21,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:21,785 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:21,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:21,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364712077] [2024-11-17 07:59:21,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364712077] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:21,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1261186106] [2024-11-17 07:59:21,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:21,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:21,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:21,788 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:21,789 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-17 07:59:21,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:21,832 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:59:21,832 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:21,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:21,894 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-17 07:59:21,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1261186106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-17 07:59:21,894 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-17 07:59:21,894 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-17 07:59:21,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640208934] [2024-11-17 07:59:21,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-17 07:59:21,895 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-17 07:59:21,895 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:21,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-17 07:59:21,895 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-17 07:59:21,919 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-17 07:59:21,919 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 54 places, 39 transitions, 167 flow. Second operand has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2024-11-17 07:59:21,919 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:21,919 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-17 07:59:21,919 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:22,113 INFO L124 PetriNetUnfolderBase]: 686/1486 cut-off events. [2024-11-17 07:59:22,113 INFO L125 PetriNetUnfolderBase]: For 1645/1663 co-relation queries the response was YES. [2024-11-17 07:59:22,115 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3727 conditions, 1486 events. 686/1486 cut-off events. For 1645/1663 co-relation queries the response was YES. Maximal size of possible extension queue 60. Compared 9176 event pairs, 222 based on Foata normal form. 41/1433 useless extension candidates. Maximal degree in co-relation 3714. Up to 434 conditions per place. [2024-11-17 07:59:22,120 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 90 selfloop transitions, 5 changer transitions 0/103 dead transitions. [2024-11-17 07:59:22,120 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 58 places, 103 transitions, 723 flow [2024-11-17 07:59:22,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-17 07:59:22,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-17 07:59:22,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 134 transitions. [2024-11-17 07:59:22,122 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5877192982456141 [2024-11-17 07:59:22,122 INFO L175 Difference]: Start difference. First operand has 54 places, 39 transitions, 167 flow. Second operand 6 states and 134 transitions. [2024-11-17 07:59:22,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 58 places, 103 transitions, 723 flow [2024-11-17 07:59:22,126 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 56 places, 103 transitions, 673 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-11-17 07:59:22,128 INFO L231 Difference]: Finished difference. Result has 56 places, 38 transitions, 163 flow [2024-11-17 07:59:22,128 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=153, PETRI_DIFFERENCE_MINUEND_PLACES=51, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=163, PETRI_PLACES=56, PETRI_TRANSITIONS=38} [2024-11-17 07:59:22,129 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 19 predicate places. [2024-11-17 07:59:22,129 INFO L471 AbstractCegarLoop]: Abstraction has has 56 places, 38 transitions, 163 flow [2024-11-17 07:59:22,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 15.0) internal successors, (90), 6 states have internal predecessors, (90), 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) [2024-11-17 07:59:22,130 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:22,130 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:22,146 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-17 07:59:22,331 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:22,332 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:22,332 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:22,332 INFO L85 PathProgramCache]: Analyzing trace with hash 856350652, now seen corresponding path program 1 times [2024-11-17 07:59:22,332 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:22,333 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354210306] [2024-11-17 07:59:22,333 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:22,333 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:22,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:22,392 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:22,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:22,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354210306] [2024-11-17 07:59:22,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354210306] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:22,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1465886716] [2024-11-17 07:59:22,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:22,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:22,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:22,395 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:22,397 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-17 07:59:22,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:22,445 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-17 07:59:22,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:22,466 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:22,466 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:59:22,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:22,500 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1465886716] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:59:22,500 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:59:22,500 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-17 07:59:22,500 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962440874] [2024-11-17 07:59:22,500 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:59:22,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-17 07:59:22,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:22,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-17 07:59:22,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-17 07:59:22,517 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-17 07:59:22,518 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 56 places, 38 transitions, 163 flow. Second operand has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 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) [2024-11-17 07:59:22,518 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:22,518 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-17 07:59:22,518 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:22,849 INFO L124 PetriNetUnfolderBase]: 1217/2740 cut-off events. [2024-11-17 07:59:22,849 INFO L125 PetriNetUnfolderBase]: For 3427/3463 co-relation queries the response was YES. [2024-11-17 07:59:22,853 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6909 conditions, 2740 events. 1217/2740 cut-off events. For 3427/3463 co-relation queries the response was YES. Maximal size of possible extension queue 99. Compared 19012 event pairs, 450 based on Foata normal form. 123/2795 useless extension candidates. Maximal degree in co-relation 6895. Up to 875 conditions per place. [2024-11-17 07:59:22,862 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 159 selfloop transitions, 9 changer transitions 0/176 dead transitions. [2024-11-17 07:59:22,862 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 65 places, 176 transitions, 1199 flow [2024-11-17 07:59:22,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-17 07:59:22,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-17 07:59:22,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 229 transitions. [2024-11-17 07:59:22,863 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6026315789473684 [2024-11-17 07:59:22,863 INFO L175 Difference]: Start difference. First operand has 56 places, 38 transitions, 163 flow. Second operand 10 states and 229 transitions. [2024-11-17 07:59:22,863 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 65 places, 176 transitions, 1199 flow [2024-11-17 07:59:22,868 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 61 places, 176 transitions, 1184 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-17 07:59:22,869 INFO L231 Difference]: Finished difference. Result has 64 places, 44 transitions, 218 flow [2024-11-17 07:59:22,870 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=52, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=218, PETRI_PLACES=64, PETRI_TRANSITIONS=44} [2024-11-17 07:59:22,870 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 27 predicate places. [2024-11-17 07:59:22,870 INFO L471 AbstractCegarLoop]: Abstraction has has 64 places, 44 transitions, 218 flow [2024-11-17 07:59:22,871 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 14.666666666666666) internal successors, (176), 12 states have internal predecessors, (176), 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) [2024-11-17 07:59:22,871 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:22,871 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:22,886 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-17 07:59:23,071 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:23,072 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:23,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:23,072 INFO L85 PathProgramCache]: Analyzing trace with hash 948748622, now seen corresponding path program 2 times [2024-11-17 07:59:23,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:23,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [635534530] [2024-11-17 07:59:23,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:23,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:23,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:23,170 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:23,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:23,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [635534530] [2024-11-17 07:59:23,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [635534530] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:23,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1440229873] [2024-11-17 07:59:23,171 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:59:23,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:23,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:23,174 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:23,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-17 07:59:23,219 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:59:23,220 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:59:23,220 INFO L255 TraceCheckSpWp]: Trace formula consists of 54 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 07:59:23,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:23,282 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:59:23,282 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:59:23,360 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:59:23,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1440229873] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:59:23,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:59:23,361 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 21 [2024-11-17 07:59:23,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007589964] [2024-11-17 07:59:23,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:59:23,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-17 07:59:23,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:23,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-17 07:59:23,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-11-17 07:59:23,412 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-17 07:59:23,412 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 44 transitions, 218 flow. Second operand has 22 states, 22 states have (on average 11.5) internal successors, (253), 22 states have internal predecessors, (253), 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) [2024-11-17 07:59:23,412 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:23,412 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-17 07:59:23,413 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:24,792 INFO L124 PetriNetUnfolderBase]: 3900/8340 cut-off events. [2024-11-17 07:59:24,792 INFO L125 PetriNetUnfolderBase]: For 15974/16055 co-relation queries the response was YES. [2024-11-17 07:59:24,808 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22770 conditions, 8340 events. 3900/8340 cut-off events. For 15974/16055 co-relation queries the response was YES. Maximal size of possible extension queue 263. Compared 69202 event pairs, 169 based on Foata normal form. 176/8515 useless extension candidates. Maximal degree in co-relation 22754. Up to 1153 conditions per place. [2024-11-17 07:59:24,897 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 556 selfloop transitions, 59 changer transitions 26/648 dead transitions. [2024-11-17 07:59:24,898 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 648 transitions, 4996 flow [2024-11-17 07:59:24,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-17 07:59:24,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-11-17 07:59:24,900 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 750 transitions. [2024-11-17 07:59:24,900 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4934210526315789 [2024-11-17 07:59:24,900 INFO L175 Difference]: Start difference. First operand has 64 places, 44 transitions, 218 flow. Second operand 40 states and 750 transitions. [2024-11-17 07:59:24,900 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 648 transitions, 4996 flow [2024-11-17 07:59:24,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 648 transitions, 4626 flow, removed 111 selfloop flow, removed 2 redundant places. [2024-11-17 07:59:24,935 INFO L231 Difference]: Finished difference. Result has 112 places, 91 transitions, 606 flow [2024-11-17 07:59:24,935 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=208, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=606, PETRI_PLACES=112, PETRI_TRANSITIONS=91} [2024-11-17 07:59:24,936 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 75 predicate places. [2024-11-17 07:59:24,936 INFO L471 AbstractCegarLoop]: Abstraction has has 112 places, 91 transitions, 606 flow [2024-11-17 07:59:24,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.5) internal successors, (253), 22 states have internal predecessors, (253), 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) [2024-11-17 07:59:24,937 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:24,937 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:24,951 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-17 07:59:25,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:25,140 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:25,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:25,141 INFO L85 PathProgramCache]: Analyzing trace with hash 2117139950, now seen corresponding path program 2 times [2024-11-17 07:59:25,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:25,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272971602] [2024-11-17 07:59:25,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:25,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:25,233 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:25,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:25,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1272971602] [2024-11-17 07:59:25,233 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1272971602] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:25,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1500772444] [2024-11-17 07:59:25,234 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:59:25,234 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:25,234 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:25,237 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:25,238 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-17 07:59:25,289 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:59:25,289 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:59:25,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 07:59:25,290 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:25,358 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:59:25,358 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:59:25,437 INFO L134 CoverageAnalysis]: Checked inductivity of 40 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 32 trivial. 0 not checked. [2024-11-17 07:59:25,438 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1500772444] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:59:25,439 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:59:25,439 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 5, 5] total 21 [2024-11-17 07:59:25,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827631812] [2024-11-17 07:59:25,439 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:59:25,440 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-17 07:59:25,440 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:25,440 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-17 07:59:25,440 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=386, Unknown=0, NotChecked=0, Total=462 [2024-11-17 07:59:25,482 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-17 07:59:25,483 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 91 transitions, 606 flow. Second operand has 22 states, 22 states have (on average 11.909090909090908) internal successors, (262), 22 states have internal predecessors, (262), 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) [2024-11-17 07:59:25,483 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:25,483 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-17 07:59:25,483 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:27,316 INFO L124 PetriNetUnfolderBase]: 5965/11979 cut-off events. [2024-11-17 07:59:27,316 INFO L125 PetriNetUnfolderBase]: For 33853/34129 co-relation queries the response was YES. [2024-11-17 07:59:27,349 INFO L83 FinitePrefix]: Finished finitePrefix Result has 36154 conditions, 11979 events. 5965/11979 cut-off events. For 33853/34129 co-relation queries the response was YES. Maximal size of possible extension queue 379. Compared 100842 event pairs, 217 based on Foata normal form. 512/12489 useless extension candidates. Maximal degree in co-relation 36125. Up to 1673 conditions per place. [2024-11-17 07:59:27,373 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 387 selfloop transitions, 31 changer transitions 456/886 dead transitions. [2024-11-17 07:59:27,373 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 151 places, 886 transitions, 8442 flow [2024-11-17 07:59:27,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-17 07:59:27,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2024-11-17 07:59:27,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 738 transitions. [2024-11-17 07:59:27,378 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4855263157894737 [2024-11-17 07:59:27,378 INFO L175 Difference]: Start difference. First operand has 112 places, 91 transitions, 606 flow. Second operand 40 states and 738 transitions. [2024-11-17 07:59:27,378 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 151 places, 886 transitions, 8442 flow [2024-11-17 07:59:27,454 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 141 places, 886 transitions, 6993 flow, removed 287 selfloop flow, removed 10 redundant places. [2024-11-17 07:59:27,459 INFO L231 Difference]: Finished difference. Result has 152 places, 85 transitions, 606 flow [2024-11-17 07:59:27,459 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=519, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=15, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=40, PETRI_FLOW=606, PETRI_PLACES=152, PETRI_TRANSITIONS=85} [2024-11-17 07:59:27,460 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 115 predicate places. [2024-11-17 07:59:27,460 INFO L471 AbstractCegarLoop]: Abstraction has has 152 places, 85 transitions, 606 flow [2024-11-17 07:59:27,460 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.909090909090908) internal successors, (262), 22 states have internal predecessors, (262), 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) [2024-11-17 07:59:27,460 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:27,461 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:27,483 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-17 07:59:27,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:27,662 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:27,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:27,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1488430119, now seen corresponding path program 1 times [2024-11-17 07:59:27,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:27,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [415136856] [2024-11-17 07:59:27,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:27,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:27,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:27,809 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:27,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:27,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [415136856] [2024-11-17 07:59:27,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [415136856] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:27,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333086790] [2024-11-17 07:59:27,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:27,810 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:27,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:27,812 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:27,813 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-17 07:59:27,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:27,865 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 07:59:27,866 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:27,911 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:27,911 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:59:28,058 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:28,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333086790] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:59:28,059 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:59:28,059 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-11-17 07:59:28,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395035749] [2024-11-17 07:59:28,059 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:59:28,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-17 07:59:28,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:28,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-17 07:59:28,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-11-17 07:59:28,098 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-17 07:59:28,099 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 152 places, 85 transitions, 606 flow. Second operand has 28 states, 28 states have (on average 14.357142857142858) internal successors, (402), 28 states have internal predecessors, (402), 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) [2024-11-17 07:59:28,099 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:28,099 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-17 07:59:28,099 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:29,511 INFO L124 PetriNetUnfolderBase]: 4935/11542 cut-off events. [2024-11-17 07:59:29,512 INFO L125 PetriNetUnfolderBase]: For 52714/52791 co-relation queries the response was YES. [2024-11-17 07:59:29,540 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39183 conditions, 11542 events. 4935/11542 cut-off events. For 52714/52791 co-relation queries the response was YES. Maximal size of possible extension queue 207. Compared 100174 event pairs, 489 based on Foata normal form. 266/11800 useless extension candidates. Maximal degree in co-relation 39143. Up to 1503 conditions per place. [2024-11-17 07:59:29,560 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 746 selfloop transitions, 50 changer transitions 96/905 dead transitions. [2024-11-17 07:59:29,561 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 905 transitions, 8814 flow [2024-11-17 07:59:29,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-17 07:59:29,564 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-17 07:59:29,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 629 transitions. [2024-11-17 07:59:29,567 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6366396761133604 [2024-11-17 07:59:29,567 INFO L175 Difference]: Start difference. First operand has 152 places, 85 transitions, 606 flow. Second operand 26 states and 629 transitions. [2024-11-17 07:59:29,567 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 905 transitions, 8814 flow [2024-11-17 07:59:29,713 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 144 places, 905 transitions, 7353 flow, removed 280 selfloop flow, removed 14 redundant places. [2024-11-17 07:59:29,718 INFO L231 Difference]: Finished difference. Result has 151 places, 113 transitions, 883 flow [2024-11-17 07:59:29,720 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=537, PETRI_DIFFERENCE_MINUEND_PLACES=119, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=59, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=883, PETRI_PLACES=151, PETRI_TRANSITIONS=113} [2024-11-17 07:59:29,720 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 114 predicate places. [2024-11-17 07:59:29,720 INFO L471 AbstractCegarLoop]: Abstraction has has 151 places, 113 transitions, 883 flow [2024-11-17 07:59:29,721 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 14.357142857142858) internal successors, (402), 28 states have internal predecessors, (402), 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) [2024-11-17 07:59:29,721 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:29,721 INFO L204 CegarLoopForPetriNet]: trace histogram [6, 6, 6, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:29,737 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-17 07:59:29,921 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:29,922 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:29,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:29,924 INFO L85 PathProgramCache]: Analyzing trace with hash -1357301967, now seen corresponding path program 1 times [2024-11-17 07:59:29,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:29,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070283526] [2024-11-17 07:59:29,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:29,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:29,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:30,210 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:30,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:30,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070283526] [2024-11-17 07:59:30,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070283526] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:30,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [477516035] [2024-11-17 07:59:30,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:30,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:30,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:30,213 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:30,214 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-17 07:59:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:30,265 INFO L255 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-17 07:59:30,266 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:30,324 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:30,324 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:59:30,485 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 60 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:30,485 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [477516035] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:59:30,486 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:59:30,486 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 27 [2024-11-17 07:59:30,486 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702095906] [2024-11-17 07:59:30,486 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:59:30,486 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-17 07:59:30,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:30,487 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-17 07:59:30,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=209, Invalid=547, Unknown=0, NotChecked=0, Total=756 [2024-11-17 07:59:30,527 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 13 out of 38 [2024-11-17 07:59:30,528 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 151 places, 113 transitions, 883 flow. Second operand has 28 states, 28 states have (on average 14.357142857142858) internal successors, (402), 28 states have internal predecessors, (402), 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) [2024-11-17 07:59:30,528 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:30,528 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 13 of 38 [2024-11-17 07:59:30,528 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:33,878 INFO L124 PetriNetUnfolderBase]: 10681/25631 cut-off events. [2024-11-17 07:59:33,879 INFO L125 PetriNetUnfolderBase]: For 106851/106921 co-relation queries the response was YES. [2024-11-17 07:59:34,038 INFO L83 FinitePrefix]: Finished finitePrefix Result has 84800 conditions, 25631 events. 10681/25631 cut-off events. For 106851/106921 co-relation queries the response was YES. Maximal size of possible extension queue 437. Compared 249787 event pairs, 1400 based on Foata normal form. 651/26235 useless extension candidates. Maximal degree in co-relation 84758. Up to 3246 conditions per place. [2024-11-17 07:59:34,105 INFO L140 encePairwiseOnDemand]: 34/38 looper letters, 1458 selfloop transitions, 50 changer transitions 24/1545 dead transitions. [2024-11-17 07:59:34,105 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 1545 transitions, 16791 flow [2024-11-17 07:59:34,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-17 07:59:34,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2024-11-17 07:59:34,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 569 transitions. [2024-11-17 07:59:34,107 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5759109311740891 [2024-11-17 07:59:34,107 INFO L175 Difference]: Start difference. First operand has 151 places, 113 transitions, 883 flow. Second operand 26 states and 569 transitions. [2024-11-17 07:59:34,107 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 1545 transitions, 16791 flow [2024-11-17 07:59:35,745 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 166 places, 1545 transitions, 15441 flow, removed 175 selfloop flow, removed 10 redundant places. [2024-11-17 07:59:35,756 INFO L231 Difference]: Finished difference. Result has 173 places, 141 transitions, 1175 flow [2024-11-17 07:59:35,756 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=829, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=113, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=87, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=1175, PETRI_PLACES=173, PETRI_TRANSITIONS=141} [2024-11-17 07:59:35,757 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 136 predicate places. [2024-11-17 07:59:35,757 INFO L471 AbstractCegarLoop]: Abstraction has has 173 places, 141 transitions, 1175 flow [2024-11-17 07:59:35,757 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 14.357142857142858) internal successors, (402), 28 states have internal predecessors, (402), 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) [2024-11-17 07:59:35,758 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:35,758 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:35,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-17 07:59:35,961 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-17 07:59:35,962 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:35,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:35,962 INFO L85 PathProgramCache]: Analyzing trace with hash -1151229913, now seen corresponding path program 2 times [2024-11-17 07:59:35,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:35,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1628791886] [2024-11-17 07:59:35,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:35,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:36,374 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:36,375 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:36,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1628791886] [2024-11-17 07:59:36,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1628791886] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:36,375 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854945389] [2024-11-17 07:59:36,375 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:59:36,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:36,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:36,377 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:36,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-17 07:59:36,424 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:59:36,424 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:59:36,425 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 07:59:36,426 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:36,553 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-17 07:59:36,553 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:59:36,698 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-17 07:59:36,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854945389] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:59:36,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:59:36,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 5, 5] total 37 [2024-11-17 07:59:36,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [310230142] [2024-11-17 07:59:36,699 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:59:36,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-17 07:59:36,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:36,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-17 07:59:36,701 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1146, Unknown=0, NotChecked=0, Total=1406 [2024-11-17 07:59:36,833 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-17 07:59:36,834 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 141 transitions, 1175 flow. Second operand has 38 states, 38 states have (on average 11.68421052631579) internal successors, (444), 38 states have internal predecessors, (444), 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) [2024-11-17 07:59:36,834 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:36,834 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-17 07:59:36,834 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:42,900 INFO L124 PetriNetUnfolderBase]: 14603/29626 cut-off events. [2024-11-17 07:59:42,901 INFO L125 PetriNetUnfolderBase]: For 145193/145312 co-relation queries the response was YES. [2024-11-17 07:59:43,010 INFO L83 FinitePrefix]: Finished finitePrefix Result has 107197 conditions, 29626 events. 14603/29626 cut-off events. For 145193/145312 co-relation queries the response was YES. Maximal size of possible extension queue 499. Compared 270643 event pairs, 313 based on Foata normal form. 162/29770 useless extension candidates. Maximal degree in co-relation 107147. Up to 4532 conditions per place. [2024-11-17 07:59:43,050 INFO L140 encePairwiseOnDemand]: 29/38 looper letters, 1162 selfloop transitions, 43 changer transitions 1225/2437 dead transitions. [2024-11-17 07:59:43,050 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 283 places, 2437 transitions, 25085 flow [2024-11-17 07:59:43,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 112 states. [2024-11-17 07:59:43,050 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2024-11-17 07:59:43,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 1893 transitions. [2024-11-17 07:59:43,057 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44478383458646614 [2024-11-17 07:59:43,057 INFO L175 Difference]: Start difference. First operand has 173 places, 141 transitions, 1175 flow. Second operand 112 states and 1893 transitions. [2024-11-17 07:59:43,057 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 283 places, 2437 transitions, 25085 flow [2024-11-17 07:59:44,301 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 259 places, 2437 transitions, 23033 flow, removed 282 selfloop flow, removed 24 redundant places. [2024-11-17 07:59:44,313 INFO L231 Difference]: Finished difference. Result has 263 places, 91 transitions, 813 flow [2024-11-17 07:59:44,313 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=1025, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=140, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=109, PETRI_DIFFERENCE_SUBTRAHEND_STATES=112, PETRI_FLOW=813, PETRI_PLACES=263, PETRI_TRANSITIONS=91} [2024-11-17 07:59:44,313 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 226 predicate places. [2024-11-17 07:59:44,314 INFO L471 AbstractCegarLoop]: Abstraction has has 263 places, 91 transitions, 813 flow [2024-11-17 07:59:44,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 11.68421052631579) internal successors, (444), 38 states have internal predecessors, (444), 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) [2024-11-17 07:59:44,314 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-17 07:59:44,314 INFO L204 CegarLoopForPetriNet]: trace histogram [13, 13, 13, 12, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:44,326 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-17 07:59:44,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-17 07:59:44,518 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-17 07:59:44,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-17 07:59:44,519 INFO L85 PathProgramCache]: Analyzing trace with hash -862595205, now seen corresponding path program 2 times [2024-11-17 07:59:44,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-17 07:59:44,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071890110] [2024-11-17 07:59:44,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-17 07:59:44,519 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-17 07:59:44,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-17 07:59:45,007 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 312 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-17 07:59:45,007 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-17 07:59:45,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071890110] [2024-11-17 07:59:45,007 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071890110] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-17 07:59:45,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [156477153] [2024-11-17 07:59:45,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-17 07:59:45,008 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-17 07:59:45,008 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-17 07:59:45,009 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-17 07:59:45,011 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-17 07:59:45,052 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-17 07:59:45,052 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-17 07:59:45,053 INFO L255 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-17 07:59:45,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-17 07:59:45,165 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-17 07:59:45,165 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-17 07:59:45,289 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 288 trivial. 0 not checked. [2024-11-17 07:59:45,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [156477153] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-17 07:59:45,290 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-17 07:59:45,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 5, 5] total 37 [2024-11-17 07:59:45,290 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093351766] [2024-11-17 07:59:45,290 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-17 07:59:45,290 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-17 07:59:45,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-17 07:59:45,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-17 07:59:45,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=260, Invalid=1146, Unknown=0, NotChecked=0, Total=1406 [2024-11-17 07:59:45,350 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 10 out of 38 [2024-11-17 07:59:45,350 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 91 transitions, 813 flow. Second operand has 38 states, 38 states have (on average 11.68421052631579) internal successors, (444), 38 states have internal predecessors, (444), 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) [2024-11-17 07:59:45,350 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-17 07:59:45,350 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 10 of 38 [2024-11-17 07:59:45,351 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-17 07:59:47,244 INFO L124 PetriNetUnfolderBase]: 5451/12157 cut-off events. [2024-11-17 07:59:47,244 INFO L125 PetriNetUnfolderBase]: For 76190/76262 co-relation queries the response was YES. [2024-11-17 07:59:47,273 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43884 conditions, 12157 events. 5451/12157 cut-off events. For 76190/76262 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 100647 event pairs, 2 based on Foata normal form. 272/12428 useless extension candidates. Maximal degree in co-relation 43849. Up to 1902 conditions per place. [2024-11-17 07:59:47,280 INFO L140 encePairwiseOnDemand]: 30/38 looper letters, 0 selfloop transitions, 0 changer transitions 1003/1003 dead transitions. [2024-11-17 07:59:47,281 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 1003 transitions, 10725 flow [2024-11-17 07:59:47,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-17 07:59:47,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2024-11-17 07:59:47,282 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 572 transitions. [2024-11-17 07:59:47,282 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.44272445820433437 [2024-11-17 07:59:47,282 INFO L175 Difference]: Start difference. First operand has 263 places, 91 transitions, 813 flow. Second operand 34 states and 572 transitions. [2024-11-17 07:59:47,282 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 1003 transitions, 10725 flow [2024-11-17 07:59:47,379 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 145 places, 1003 transitions, 7344 flow, removed 203 selfloop flow, removed 53 redundant places. [2024-11-17 07:59:47,383 INFO L231 Difference]: Finished difference. Result has 145 places, 0 transitions, 0 flow [2024-11-17 07:59:47,383 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=38, PETRI_DIFFERENCE_MINUEND_FLOW=460, PETRI_DIFFERENCE_MINUEND_PLACES=112, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=90, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=34, PETRI_FLOW=0, PETRI_PLACES=145, PETRI_TRANSITIONS=0} [2024-11-17 07:59:47,383 INFO L277 CegarLoopForPetriNet]: 37 programPoint places, 108 predicate places. [2024-11-17 07:59:47,383 INFO L471 AbstractCegarLoop]: Abstraction has has 145 places, 0 transitions, 0 flow [2024-11-17 07:59:47,383 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 11.68421052631579) internal successors, (444), 38 states have internal predecessors, (444), 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) [2024-11-17 07:59:47,386 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-17 07:59:47,386 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 14 remaining) [2024-11-17 07:59:47,386 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-11-17 07:59:47,386 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-11-17 07:59:47,386 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-11-17 07:59:47,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-11-17 07:59:47,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-11-17 07:59:47,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-11-17 07:59:47,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2024-11-17 07:59:47,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2024-11-17 07:59:47,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-11-17 07:59:47,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-11-17 07:59:47,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-11-17 07:59:47,387 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-11-17 07:59:47,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-17 07:59:47,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-17 07:59:47,591 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-17 07:59:47,595 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-17 07:59:47,595 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-17 07:59:47,598 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.11 07:59:47 BasicIcfg [2024-11-17 07:59:47,599 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-17 07:59:47,599 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-17 07:59:47,599 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-17 07:59:47,599 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-17 07:59:47,599 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 17.11 07:59:19" (3/4) ... [2024-11-17 07:59:47,600 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-17 07:59:47,602 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-17 07:59:47,602 INFO L393 IcfgBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-17 07:59:47,608 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 30 nodes and edges [2024-11-17 07:59:47,609 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-11-17 07:59:47,609 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-11-17 07:59:47,609 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-11-17 07:59:47,669 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-17 07:59:47,669 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-17 07:59:47,669 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-17 07:59:47,669 INFO L158 Benchmark]: Toolchain (without parser) took 29519.33ms. Allocated memory was 195.0MB in the beginning and 7.0GB in the end (delta: 6.8GB). Free memory was 122.4MB in the beginning and 5.9GB in the end (delta: -5.8GB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-11-17 07:59:47,670 INFO L158 Benchmark]: CDTParser took 0.78ms. Allocated memory is still 195.0MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-17 07:59:47,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 494.38ms. Allocated memory is still 195.0MB. Free memory was 122.1MB in the beginning and 158.7MB in the end (delta: -36.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-11-17 07:59:47,670 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.41ms. Allocated memory is still 195.0MB. Free memory was 158.7MB in the beginning and 156.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:59:47,670 INFO L158 Benchmark]: Boogie Preprocessor took 52.57ms. Allocated memory is still 195.0MB. Free memory was 156.6MB in the beginning and 154.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-17 07:59:47,670 INFO L158 Benchmark]: IcfgBuilder took 460.58ms. Allocated memory is still 195.0MB. Free memory was 154.5MB in the beginning and 130.5MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-11-17 07:59:47,671 INFO L158 Benchmark]: TraceAbstraction took 28394.01ms. Allocated memory was 195.0MB in the beginning and 7.0GB in the end (delta: 6.8GB). Free memory was 129.4MB in the beginning and 5.9GB in the end (delta: -5.8GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. [2024-11-17 07:59:47,671 INFO L158 Benchmark]: Witness Printer took 70.01ms. Allocated memory is still 7.0GB. Free memory was 5.9GB in the beginning and 5.9GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-17 07:59:47,672 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.78ms. Allocated memory is still 195.0MB. Free memory is still 152.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 494.38ms. Allocated memory is still 195.0MB. Free memory was 122.1MB in the beginning and 158.7MB in the end (delta: -36.6MB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.41ms. Allocated memory is still 195.0MB. Free memory was 158.7MB in the beginning and 156.6MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 52.57ms. Allocated memory is still 195.0MB. Free memory was 156.6MB in the beginning and 154.5MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 460.58ms. Allocated memory is still 195.0MB. Free memory was 154.5MB in the beginning and 130.5MB in the end (delta: 24.0MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 28394.01ms. Allocated memory was 195.0MB in the beginning and 7.0GB in the end (delta: 6.8GB). Free memory was 129.4MB in the beginning and 5.9GB in the end (delta: -5.8GB). Peak memory consumption was 1.2GB. Max. memory is 16.1GB. * Witness Printer took 70.01ms. Allocated memory is still 7.0GB. Free memory was 5.9GB in the beginning and 5.9GB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 761]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 770]: 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, 63 locations, 14 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: 28.3s, OverallIterations: 14, TraceHistogramMax: 13, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 22.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5940 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5880 mSDsluCounter, 1266 SdHoareTripleChecker+Invalid, 2.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1249 mSDsCounter, 48 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 6070 IncrementalHoareTripleChecker+Invalid, 6118 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 48 mSolverCounterUnsat, 17 mSDtfsCounter, 6070 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1066 GetRequests, 612 SyntacticMatches, 0 SemanticMatches, 454 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10560 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1175occurred in iteration=12, InterpolantAutomatonStates: 324, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 3.3s InterpolantComputationTime, 649 NumberOfCodeBlocks, 521 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 897 ConstructedInterpolants, 0 QuantifiedInterpolants, 2363 SizeOfPredicates, 44 NumberOfNonLiveVariables, 808 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 32 InterpolantComputations, 6 PerfectInterpolantSequences, 1286/2508 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 6 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-11-17 07:59:47,692 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