./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/pthread-theta/unwind2-nondet.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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-nondet.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 797a9e1bf9dc9387a2e0877719131f75c1f5b0797aa4bcc7c94038568bc56c2d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-23 02:03:04,549 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-23 02:03:04,606 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-23 02:03:04,614 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-23 02:03:04,615 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-23 02:03:04,640 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-23 02:03:04,641 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-23 02:03:04,641 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-23 02:03:04,642 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-23 02:03:04,643 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-23 02:03:04,643 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-23 02:03:04,643 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-23 02:03:04,644 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-23 02:03:04,644 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-23 02:03:04,645 INFO L153 SettingsManager]: * Use SBE=true [2024-11-23 02:03:04,645 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-23 02:03:04,645 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-23 02:03:04,646 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-23 02:03:04,646 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-23 02:03:04,646 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-23 02:03:04,647 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-23 02:03:04,647 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-23 02:03:04,648 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-23 02:03:04,648 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-23 02:03:04,648 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-23 02:03:04,649 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-23 02:03:04,649 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-23 02:03:04,649 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-23 02:03:04,650 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-23 02:03:04,650 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-23 02:03:04,650 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-23 02:03:04,651 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-23 02:03:04,651 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-23 02:03:04,651 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-23 02:03:04,652 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 02:03:04,652 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-23 02:03:04,652 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-23 02:03:04,652 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-23 02:03:04,653 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-23 02:03:04,653 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-23 02:03:04,653 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-23 02:03:04,654 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-23 02:03:04,654 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-23 02:03:04,654 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-23 02:03:04,654 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 797a9e1bf9dc9387a2e0877719131f75c1f5b0797aa4bcc7c94038568bc56c2d [2024-11-23 02:03:04,888 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-23 02:03:04,917 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-23 02:03:04,921 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-23 02:03:04,922 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-23 02:03:04,922 INFO L274 PluginConnector]: CDTParser initialized [2024-11-23 02:03:04,924 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-theta/unwind2-nondet.i [2024-11-23 02:03:06,386 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-23 02:03:06,663 INFO L384 CDTParser]: Found 1 translation units. [2024-11-23 02:03:06,664 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-theta/unwind2-nondet.i [2024-11-23 02:03:06,688 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcc1e9990/308bcb25afb04ba88bda2529c3b20c8d/FLAGd6aacf52b [2024-11-23 02:03:06,965 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bcc1e9990/308bcb25afb04ba88bda2529c3b20c8d [2024-11-23 02:03:06,968 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-23 02:03:06,969 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-23 02:03:06,970 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-23 02:03:06,970 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-23 02:03:06,976 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-23 02:03:06,977 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:03:06" (1/1) ... [2024-11-23 02:03:06,980 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@23d45cc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:06, skipping insertion in model container [2024-11-23 02:03:06,980 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 02:03:06" (1/1) ... [2024-11-23 02:03:07,035 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-23 02:03:07,456 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:03:07,466 INFO L200 MainTranslator]: Completed pre-run [2024-11-23 02:03:07,530 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-23 02:03:07,574 INFO L204 MainTranslator]: Completed translation [2024-11-23 02:03:07,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07 WrapperNode [2024-11-23 02:03:07,575 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-23 02:03:07,576 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-23 02:03:07,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-23 02:03:07,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-23 02:03:07,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,595 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,617 INFO L138 Inliner]: procedures = 169, calls = 12, calls flagged for inlining = 6, calls inlined = 7, statements flattened = 94 [2024-11-23 02:03:07,617 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-23 02:03:07,618 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-23 02:03:07,618 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-23 02:03:07,618 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-23 02:03:07,633 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,633 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,636 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,657 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]. [2024-11-23 02:03:07,657 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,657 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,663 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,670 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,672 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,673 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,675 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-23 02:03:07,676 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-23 02:03:07,676 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-23 02:03:07,676 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-23 02:03:07,677 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (1/1) ... [2024-11-23 02:03:07,684 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-23 02:03:07,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:07,708 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) [2024-11-23 02:03:07,712 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 [2024-11-23 02:03:07,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-23 02:03:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure f1 [2024-11-23 02:03:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure f1 [2024-11-23 02:03:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure f2 [2024-11-23 02:03:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure f2 [2024-11-23 02:03:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-23 02:03:07,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-23 02:03:07,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-23 02:03:07,759 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-11-23 02:03:07,879 INFO L238 CfgBuilder]: Building ICFG [2024-11-23 02:03:07,882 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-23 02:03:08,087 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-11-23 02:03:08,088 INFO L287 CfgBuilder]: Performing block encoding [2024-11-23 02:03:08,228 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-23 02:03:08,228 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-23 02:03:08,228 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:08 BoogieIcfgContainer [2024-11-23 02:03:08,228 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-23 02:03:08,230 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-23 02:03:08,231 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-23 02:03:08,235 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-23 02:03:08,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 02:03:06" (1/3) ... [2024-11-23 02:03:08,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e48068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:03:08, skipping insertion in model container [2024-11-23 02:03:08,237 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 02:03:07" (2/3) ... [2024-11-23 02:03:08,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13e48068 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 02:03:08, skipping insertion in model container [2024-11-23 02:03:08,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:08" (3/3) ... [2024-11-23 02:03:08,239 INFO L112 eAbstractionObserver]: Analyzing ICFG unwind2-nondet.i [2024-11-23 02:03:08,259 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-23 02:03:08,259 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2024-11-23 02:03:08,260 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-11-23 02:03:08,313 INFO L143 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-11-23 02:03:08,352 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 37 places, 32 transitions, 78 flow [2024-11-23 02:03:08,389 INFO L124 PetriNetUnfolderBase]: 2/30 cut-off events. [2024-11-23 02:03:08,389 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-23 02:03:08,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 39 conditions, 30 events. 2/30 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 53 event pairs, 0 based on Foata normal form. 0/22 useless extension candidates. Maximal degree in co-relation 27. Up to 2 conditions per place. [2024-11-23 02:03:08,395 INFO L82 GeneralOperation]: Start removeDead. Operand has 37 places, 32 transitions, 78 flow [2024-11-23 02:03:08,398 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 33 places, 28 transitions, 65 flow [2024-11-23 02:03:08,414 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-23 02:03:08,423 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@68d007af, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-23 02:03:08,423 INFO L334 AbstractCegarLoop]: Starting to check reachability of 14 error locations. [2024-11-23 02:03:08,430 INFO L185 PetriNetUnfolderBase]: Found word, exiting Unfolder. [2024-11-23 02:03:08,431 INFO L124 PetriNetUnfolderBase]: 0/11 cut-off events. [2024-11-23 02:03:08,431 INFO L125 PetriNetUnfolderBase]: For 1/1 co-relation queries the response was YES. [2024-11-23 02:03:08,431 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:08,432 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1] [2024-11-23 02:03:08,432 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:08,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:08,438 INFO L85 PathProgramCache]: Analyzing trace with hash -42937927, now seen corresponding path program 1 times [2024-11-23 02:03:08,446 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:08,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805514545] [2024-11-23 02:03:08,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:08,448 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:08,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:08,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:08,674 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805514545] [2024-11-23 02:03:08,675 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [805514545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:08,675 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:08,675 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 02:03:08,677 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2020852811] [2024-11-23 02:03:08,677 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:08,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 02:03:08,690 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:08,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:03:08,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:03:08,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-23 02:03:08,727 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 28 transitions, 65 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-23 02:03:08,728 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:08,728 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-23 02:03:08,729 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:08,849 INFO L124 PetriNetUnfolderBase]: 123/288 cut-off events. [2024-11-23 02:03:08,849 INFO L125 PetriNetUnfolderBase]: For 15/15 co-relation queries the response was YES. [2024-11-23 02:03:08,855 INFO L83 FinitePrefix]: Finished finitePrefix Result has 522 conditions, 288 events. 123/288 cut-off events. For 15/15 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1334 event pairs, 96 based on Foata normal form. 11/229 useless extension candidates. Maximal degree in co-relation 474. Up to 211 conditions per place. [2024-11-23 02:03:08,861 INFO L140 encePairwiseOnDemand]: 30/32 looper letters, 17 selfloop transitions, 1 changer transitions 0/27 dead transitions. [2024-11-23 02:03:08,861 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 27 transitions, 99 flow [2024-11-23 02:03:08,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:03:08,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 02:03:08,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 52 transitions. [2024-11-23 02:03:08,872 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.5416666666666666 [2024-11-23 02:03:08,874 INFO L175 Difference]: Start difference. First operand has 33 places, 28 transitions, 65 flow. Second operand 3 states and 52 transitions. [2024-11-23 02:03:08,875 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 27 transitions, 99 flow [2024-11-23 02:03:08,877 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 27 transitions, 94 flow, removed 0 selfloop flow, removed 3 redundant places. [2024-11-23 02:03:08,879 INFO L231 Difference]: Finished difference. Result has 31 places, 27 transitions, 60 flow [2024-11-23 02:03:08,880 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=26, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=60, PETRI_PLACES=31, PETRI_TRANSITIONS=27} [2024-11-23 02:03:08,884 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -2 predicate places. [2024-11-23 02:03:08,884 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 27 transitions, 60 flow [2024-11-23 02:03:08,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-23 02:03:08,884 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:08,884 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:08,885 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-23 02:03:08,885 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:08,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:08,886 INFO L85 PathProgramCache]: Analyzing trace with hash -1331075430, now seen corresponding path program 1 times [2024-11-23 02:03:08,886 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:08,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799305623] [2024-11-23 02:03:08,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:08,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:09,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:09,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:09,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799305623] [2024-11-23 02:03:09,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799305623] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:09,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:09,032 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2024-11-23 02:03:09,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390839054] [2024-11-23 02:03:09,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:09,033 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-23 02:03:09,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:09,034 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-23 02:03:09,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-23 02:03:09,039 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-23 02:03:09,040 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 27 transitions, 60 flow. Second operand has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-23 02:03:09,040 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:09,040 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-23 02:03:09,040 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:09,125 INFO L124 PetriNetUnfolderBase]: 107/255 cut-off events. [2024-11-23 02:03:09,126 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-23 02:03:09,127 INFO L83 FinitePrefix]: Finished finitePrefix Result has 454 conditions, 255 events. 107/255 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 21. Compared 1116 event pairs, 82 based on Foata normal form. 0/200 useless extension candidates. Maximal degree in co-relation 448. Up to 184 conditions per place. [2024-11-23 02:03:09,129 INFO L140 encePairwiseOnDemand]: 30/32 looper letters, 16 selfloop transitions, 1 changer transitions 0/26 dead transitions. [2024-11-23 02:03:09,130 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 26 transitions, 92 flow [2024-11-23 02:03:09,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-23 02:03:09,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2024-11-23 02:03:09,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 51 transitions. [2024-11-23 02:03:09,133 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.53125 [2024-11-23 02:03:09,133 INFO L175 Difference]: Start difference. First operand has 31 places, 27 transitions, 60 flow. Second operand 3 states and 51 transitions. [2024-11-23 02:03:09,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 26 transitions, 92 flow [2024-11-23 02:03:09,134 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 31 places, 26 transitions, 91 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:09,136 INFO L231 Difference]: Finished difference. Result has 31 places, 26 transitions, 59 flow [2024-11-23 02:03:09,136 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=57, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=59, PETRI_PLACES=31, PETRI_TRANSITIONS=26} [2024-11-23 02:03:09,137 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, -2 predicate places. [2024-11-23 02:03:09,137 INFO L471 AbstractCegarLoop]: Abstraction has has 31 places, 26 transitions, 59 flow [2024-11-23 02:03:09,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.0) internal successors, (39), 3 states have internal predecessors, (39), 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) [2024-11-23 02:03:09,138 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:09,138 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:09,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-23 02:03:09,138 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:09,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:09,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1330873875, now seen corresponding path program 1 times [2024-11-23 02:03:09,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:09,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149839021] [2024-11-23 02:03:09,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:09,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:09,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:09,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:09,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:09,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149839021] [2024-11-23 02:03:09,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149839021] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:09,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:09,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:03:09,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249176994] [2024-11-23 02:03:09,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:09,272 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 02:03:09,272 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:09,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:03:09,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:03:09,283 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-23 02:03:09,284 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 26 transitions, 59 flow. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-23 02:03:09,284 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:09,284 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-23 02:03:09,284 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:09,450 INFO L124 PetriNetUnfolderBase]: 213/434 cut-off events. [2024-11-23 02:03:09,451 INFO L125 PetriNetUnfolderBase]: For 2/2 co-relation queries the response was YES. [2024-11-23 02:03:09,453 INFO L83 FinitePrefix]: Finished finitePrefix Result has 826 conditions, 434 events. 213/434 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1932 event pairs, 118 based on Foata normal form. 14/363 useless extension candidates. Maximal degree in co-relation 819. Up to 253 conditions per place. [2024-11-23 02:03:09,458 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 38 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-23 02:03:09,458 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 48 transitions, 190 flow [2024-11-23 02:03:09,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 02:03:09,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 02:03:09,461 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 87 transitions. [2024-11-23 02:03:09,461 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6796875 [2024-11-23 02:03:09,462 INFO L175 Difference]: Start difference. First operand has 31 places, 26 transitions, 59 flow. Second operand 4 states and 87 transitions. [2024-11-23 02:03:09,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 48 transitions, 190 flow [2024-11-23 02:03:09,462 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 33 places, 48 transitions, 189 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:09,464 INFO L231 Difference]: Finished difference. Result has 35 places, 28 transitions, 80 flow [2024-11-23 02:03:09,464 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=58, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=23, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=80, PETRI_PLACES=35, PETRI_TRANSITIONS=28} [2024-11-23 02:03:09,466 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 2 predicate places. [2024-11-23 02:03:09,466 INFO L471 AbstractCegarLoop]: Abstraction has has 35 places, 28 transitions, 80 flow [2024-11-23 02:03:09,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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) [2024-11-23 02:03:09,467 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:09,467 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:09,468 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-23 02:03:09,468 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:09,469 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:09,469 INFO L85 PathProgramCache]: Analyzing trace with hash -1220201020, now seen corresponding path program 1 times [2024-11-23 02:03:09,469 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:09,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744071751] [2024-11-23 02:03:09,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:09,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:09,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:09,579 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:09,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:09,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744071751] [2024-11-23 02:03:09,580 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744071751] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:09,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [943248635] [2024-11-23 02:03:09,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:09,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:09,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:09,582 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) [2024-11-23 02:03:09,584 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-23 02:03:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:09,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:03:09,642 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:09,712 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:09,713 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 02:03:09,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [943248635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:09,713 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 02:03:09,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 02:03:09,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750796971] [2024-11-23 02:03:09,714 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:09,714 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 02:03:09,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:09,715 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 02:03:09,715 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 02:03:09,725 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-23 02:03:09,725 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 28 transitions, 80 flow. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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) [2024-11-23 02:03:09,727 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:09,727 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-23 02:03:09,727 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:09,943 INFO L124 PetriNetUnfolderBase]: 193/378 cut-off events. [2024-11-23 02:03:09,943 INFO L125 PetriNetUnfolderBase]: For 70/70 co-relation queries the response was YES. [2024-11-23 02:03:09,946 INFO L83 FinitePrefix]: Finished finitePrefix Result has 848 conditions, 378 events. 193/378 cut-off events. For 70/70 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1582 event pairs, 23 based on Foata normal form. 14/349 useless extension candidates. Maximal degree in co-relation 839. Up to 94 conditions per place. [2024-11-23 02:03:09,948 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 53 selfloop transitions, 5 changer transitions 0/65 dead transitions. [2024-11-23 02:03:09,949 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 65 transitions, 277 flow [2024-11-23 02:03:09,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 02:03:09,950 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 02:03:09,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 125 transitions. [2024-11-23 02:03:09,951 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6510416666666666 [2024-11-23 02:03:09,951 INFO L175 Difference]: Start difference. First operand has 35 places, 28 transitions, 80 flow. Second operand 6 states and 125 transitions. [2024-11-23 02:03:09,953 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 65 transitions, 277 flow [2024-11-23 02:03:09,955 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 65 transitions, 275 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:09,958 INFO L231 Difference]: Finished difference. Result has 38 places, 27 transitions, 84 flow [2024-11-23 02:03:09,958 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=74, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=22, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=84, PETRI_PLACES=38, PETRI_TRANSITIONS=27} [2024-11-23 02:03:09,959 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 5 predicate places. [2024-11-23 02:03:09,959 INFO L471 AbstractCegarLoop]: Abstraction has has 38 places, 27 transitions, 84 flow [2024-11-23 02:03:09,959 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 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) [2024-11-23 02:03:09,959 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:09,959 INFO L204 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:09,969 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-23 02:03:10,160 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 [2024-11-23 02:03:10,161 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:10,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:10,162 INFO L85 PathProgramCache]: Analyzing trace with hash -628016482, now seen corresponding path program 1 times [2024-11-23 02:03:10,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:10,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [672983576] [2024-11-23 02:03:10,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:10,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:10,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:10,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:10,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:10,235 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [672983576] [2024-11-23 02:03:10,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [672983576] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:10,236 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-23 02:03:10,236 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-23 02:03:10,236 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3877110] [2024-11-23 02:03:10,236 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:10,236 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-23 02:03:10,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:10,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-23 02:03:10,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-23 02:03:10,245 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-23 02:03:10,246 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 27 transitions, 84 flow. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-23 02:03:10,246 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:10,246 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-23 02:03:10,246 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:10,369 INFO L124 PetriNetUnfolderBase]: 303/592 cut-off events. [2024-11-23 02:03:10,369 INFO L125 PetriNetUnfolderBase]: For 414/424 co-relation queries the response was YES. [2024-11-23 02:03:10,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1408 conditions, 592 events. 303/592 cut-off events. For 414/424 co-relation queries the response was YES. Maximal size of possible extension queue 32. Compared 2625 event pairs, 189 based on Foata normal form. 18/547 useless extension candidates. Maximal degree in co-relation 1399. Up to 387 conditions per place. [2024-11-23 02:03:10,374 INFO L140 encePairwiseOnDemand]: 27/32 looper letters, 39 selfloop transitions, 3 changer transitions 0/48 dead transitions. [2024-11-23 02:03:10,374 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 48 transitions, 256 flow [2024-11-23 02:03:10,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-23 02:03:10,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2024-11-23 02:03:10,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 82 transitions. [2024-11-23 02:03:10,379 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.640625 [2024-11-23 02:03:10,379 INFO L175 Difference]: Start difference. First operand has 38 places, 27 transitions, 84 flow. Second operand 4 states and 82 transitions. [2024-11-23 02:03:10,379 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 48 transitions, 256 flow [2024-11-23 02:03:10,393 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 48 transitions, 229 flow, removed 3 selfloop flow, removed 4 redundant places. [2024-11-23 02:03:10,395 INFO L231 Difference]: Finished difference. Result has 39 places, 29 transitions, 97 flow [2024-11-23 02:03:10,397 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=75, PETRI_DIFFERENCE_MINUEND_PLACES=34, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=27, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=97, PETRI_PLACES=39, PETRI_TRANSITIONS=29} [2024-11-23 02:03:10,397 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 6 predicate places. [2024-11-23 02:03:10,398 INFO L471 AbstractCegarLoop]: Abstraction has has 39 places, 29 transitions, 97 flow [2024-11-23 02:03:10,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 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) [2024-11-23 02:03:10,399 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:10,399 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:10,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-23 02:03:10,399 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:10,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:10,400 INFO L85 PathProgramCache]: Analyzing trace with hash 828474346, now seen corresponding path program 1 times [2024-11-23 02:03:10,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:10,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662810124] [2024-11-23 02:03:10,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:10,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:10,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:10,477 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:10,477 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:10,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662810124] [2024-11-23 02:03:10,477 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662810124] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:10,477 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [905999725] [2024-11-23 02:03:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:10,478 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:10,478 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:10,481 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) [2024-11-23 02:03:10,483 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-23 02:03:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:10,543 INFO L255 TraceCheckSpWp]: Trace formula consists of 60 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:03:10,544 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:10,574 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:10,574 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:10,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:10,621 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [905999725] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:10,621 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:10,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-23 02:03:10,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538076798] [2024-11-23 02:03:10,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:10,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 02:03:10,623 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:10,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 02:03:10,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 02:03:10,640 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-23 02:03:10,641 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 29 transitions, 97 flow. Second operand has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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) [2024-11-23 02:03:10,641 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:10,641 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-23 02:03:10,641 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:10,975 INFO L124 PetriNetUnfolderBase]: 568/1106 cut-off events. [2024-11-23 02:03:10,975 INFO L125 PetriNetUnfolderBase]: For 712/776 co-relation queries the response was YES. [2024-11-23 02:03:10,979 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2764 conditions, 1106 events. 568/1106 cut-off events. For 712/776 co-relation queries the response was YES. Maximal size of possible extension queue 42. Compared 5527 event pairs, 151 based on Foata normal form. 60/1159 useless extension candidates. Maximal degree in co-relation 2754. Up to 315 conditions per place. [2024-11-23 02:03:10,985 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 115 selfloop transitions, 9 changer transitions 0/131 dead transitions. [2024-11-23 02:03:10,986 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 48 places, 131 transitions, 699 flow [2024-11-23 02:03:10,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 02:03:10,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 02:03:10,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 219 transitions. [2024-11-23 02:03:10,988 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.684375 [2024-11-23 02:03:10,989 INFO L175 Difference]: Start difference. First operand has 39 places, 29 transitions, 97 flow. Second operand 10 states and 219 transitions. [2024-11-23 02:03:10,989 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 48 places, 131 transitions, 699 flow [2024-11-23 02:03:10,992 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 47 places, 131 transitions, 681 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:10,995 INFO L231 Difference]: Finished difference. Result has 50 places, 35 transitions, 159 flow [2024-11-23 02:03:10,996 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=95, PETRI_DIFFERENCE_MINUEND_PLACES=38, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=29, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=159, PETRI_PLACES=50, PETRI_TRANSITIONS=35} [2024-11-23 02:03:10,997 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 17 predicate places. [2024-11-23 02:03:10,998 INFO L471 AbstractCegarLoop]: Abstraction has has 50 places, 35 transitions, 159 flow [2024-11-23 02:03:10,998 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.333333333333334) internal successors, (148), 12 states have internal predecessors, (148), 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) [2024-11-23 02:03:10,999 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:10,999 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:11,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-23 02:03:11,203 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 [2024-11-23 02:03:11,204 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:11,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:11,205 INFO L85 PathProgramCache]: Analyzing trace with hash -361161248, now seen corresponding path program 1 times [2024-11-23 02:03:11,205 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:11,205 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [43658609] [2024-11-23 02:03:11,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:11,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:11,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:11,296 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:11,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:11,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [43658609] [2024-11-23 02:03:11,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [43658609] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:11,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1055444640] [2024-11-23 02:03:11,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:11,298 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:11,298 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:11,300 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) [2024-11-23 02:03:11,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-23 02:03:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:11,351 INFO L255 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:03:11,352 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:11,382 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:11,382 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-23 02:03:11,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1055444640] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-23 02:03:11,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-23 02:03:11,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-23 02:03:11,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [203695485] [2024-11-23 02:03:11,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-23 02:03:11,384 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-23 02:03:11,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:11,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-23 02:03:11,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-23 02:03:11,391 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-23 02:03:11,392 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 50 places, 35 transitions, 159 flow. Second operand has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-11-23 02:03:11,392 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:11,392 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-23 02:03:11,392 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:11,591 INFO L124 PetriNetUnfolderBase]: 595/1154 cut-off events. [2024-11-23 02:03:11,592 INFO L125 PetriNetUnfolderBase]: For 1244/1258 co-relation queries the response was YES. [2024-11-23 02:03:11,594 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3185 conditions, 1154 events. 595/1154 cut-off events. For 1244/1258 co-relation queries the response was YES. Maximal size of possible extension queue 45. Compared 5735 event pairs, 156 based on Foata normal form. 39/1145 useless extension candidates. Maximal degree in co-relation 3172. Up to 317 conditions per place. [2024-11-23 02:03:11,599 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 84 selfloop transitions, 5 changer transitions 0/95 dead transitions. [2024-11-23 02:03:11,599 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 54 places, 95 transitions, 695 flow [2024-11-23 02:03:11,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-23 02:03:11,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2024-11-23 02:03:11,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2024-11-23 02:03:11,600 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6041666666666666 [2024-11-23 02:03:11,600 INFO L175 Difference]: Start difference. First operand has 50 places, 35 transitions, 159 flow. Second operand 6 states and 116 transitions. [2024-11-23 02:03:11,600 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 54 places, 95 transitions, 695 flow [2024-11-23 02:03:11,604 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 52 places, 95 transitions, 645 flow, removed 15 selfloop flow, removed 2 redundant places. [2024-11-23 02:03:11,606 INFO L231 Difference]: Finished difference. Result has 52 places, 34 transitions, 155 flow [2024-11-23 02:03:11,606 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=145, PETRI_DIFFERENCE_MINUEND_PLACES=47, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=155, PETRI_PLACES=52, PETRI_TRANSITIONS=34} [2024-11-23 02:03:11,606 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 19 predicate places. [2024-11-23 02:03:11,607 INFO L471 AbstractCegarLoop]: Abstraction has has 52 places, 34 transitions, 155 flow [2024-11-23 02:03:11,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.833333333333334) internal successors, (77), 6 states have internal predecessors, (77), 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) [2024-11-23 02:03:11,607 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:11,607 INFO L204 CegarLoopForPetriNet]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:11,618 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-23 02:03:11,807 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 [2024-11-23 02:03:11,808 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:11,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:11,808 INFO L85 PathProgramCache]: Analyzing trace with hash 1688903515, now seen corresponding path program 1 times [2024-11-23 02:03:11,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:11,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073981444] [2024-11-23 02:03:11,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:11,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:11,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:11,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:11,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073981444] [2024-11-23 02:03:11,870 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073981444] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:11,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [10175310] [2024-11-23 02:03:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:11,874 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:11,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:11,876 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) [2024-11-23 02:03:11,878 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-23 02:03:11,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:11,928 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-23 02:03:11,929 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:11,960 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:11,960 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:12,001 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:12,002 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [10175310] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:12,002 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:12,002 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-23 02:03:12,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301211608] [2024-11-23 02:03:12,002 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:12,003 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-23 02:03:12,003 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:12,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-23 02:03:12,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2024-11-23 02:03:12,021 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-23 02:03:12,022 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 52 places, 34 transitions, 155 flow. Second operand has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 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) [2024-11-23 02:03:12,022 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:12,022 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-23 02:03:12,022 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:12,388 INFO L124 PetriNetUnfolderBase]: 1099/2138 cut-off events. [2024-11-23 02:03:12,388 INFO L125 PetriNetUnfolderBase]: For 2551/2577 co-relation queries the response was YES. [2024-11-23 02:03:12,392 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6036 conditions, 2138 events. 1099/2138 cut-off events. For 2551/2577 co-relation queries the response was YES. Maximal size of possible extension queue 68. Compared 11667 event pairs, 372 based on Foata normal form. 117/2246 useless extension candidates. Maximal degree in co-relation 6022. Up to 736 conditions per place. [2024-11-23 02:03:12,401 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 149 selfloop transitions, 9 changer transitions 0/164 dead transitions. [2024-11-23 02:03:12,401 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 61 places, 164 transitions, 1155 flow [2024-11-23 02:03:12,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 02:03:12,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 02:03:12,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 199 transitions. [2024-11-23 02:03:12,402 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.621875 [2024-11-23 02:03:12,402 INFO L175 Difference]: Start difference. First operand has 52 places, 34 transitions, 155 flow. Second operand 10 states and 199 transitions. [2024-11-23 02:03:12,402 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 61 places, 164 transitions, 1155 flow [2024-11-23 02:03:12,408 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 164 transitions, 1140 flow, removed 4 selfloop flow, removed 4 redundant places. [2024-11-23 02:03:12,411 INFO L231 Difference]: Finished difference. Result has 60 places, 40 transitions, 210 flow [2024-11-23 02:03:12,411 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=146, PETRI_DIFFERENCE_MINUEND_PLACES=48, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=210, PETRI_PLACES=60, PETRI_TRANSITIONS=40} [2024-11-23 02:03:12,413 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 27 predicate places. [2024-11-23 02:03:12,413 INFO L471 AbstractCegarLoop]: Abstraction has has 60 places, 40 transitions, 210 flow [2024-11-23 02:03:12,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.583333333333334) internal successors, (151), 12 states have internal predecessors, (151), 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) [2024-11-23 02:03:12,414 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:12,414 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:12,422 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-23 02:03:12,618 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 [2024-11-23 02:03:12,619 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:12,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:12,620 INFO L85 PathProgramCache]: Analyzing trace with hash -561828959, now seen corresponding path program 2 times [2024-11-23 02:03:12,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:12,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809294080] [2024-11-23 02:03:12,622 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:12,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:12,632 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:12,632 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:12,692 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 02:03:12,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:12,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809294080] [2024-11-23 02:03:12,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809294080] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:12,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [792575797] [2024-11-23 02:03:12,693 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:12,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:12,693 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:12,695 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) [2024-11-23 02:03:12,696 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-23 02:03:12,742 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:12,742 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:12,743 INFO L255 TraceCheckSpWp]: Trace formula consists of 53 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 02:03:12,743 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:12,798 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 02:03:12,799 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:12,873 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 02:03:12,873 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [792575797] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:12,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:12,874 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-23 02:03:12,874 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089035033] [2024-11-23 02:03:12,874 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:12,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 02:03:12,875 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:12,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 02:03:12,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-23 02:03:12,907 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2024-11-23 02:03:12,908 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 60 places, 40 transitions, 210 flow. Second operand has 13 states, 13 states have (on average 8.615384615384615) internal successors, (112), 13 states have internal predecessors, (112), 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) [2024-11-23 02:03:12,908 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:12,908 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2024-11-23 02:03:12,908 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:13,578 INFO L124 PetriNetUnfolderBase]: 2694/5145 cut-off events. [2024-11-23 02:03:13,578 INFO L125 PetriNetUnfolderBase]: For 8614/8649 co-relation queries the response was YES. [2024-11-23 02:03:13,587 INFO L83 FinitePrefix]: Finished finitePrefix Result has 15558 conditions, 5145 events. 2694/5145 cut-off events. For 8614/8649 co-relation queries the response was YES. Maximal size of possible extension queue 169. Compared 34208 event pairs, 332 based on Foata normal form. 72/5216 useless extension candidates. Maximal degree in co-relation 15542. Up to 1195 conditions per place. [2024-11-23 02:03:13,607 INFO L140 encePairwiseOnDemand]: 23/32 looper letters, 120 selfloop transitions, 30 changer transitions 6/160 dead transitions. [2024-11-23 02:03:13,608 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 69 places, 160 transitions, 1219 flow [2024-11-23 02:03:13,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 02:03:13,608 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 02:03:13,609 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 148 transitions. [2024-11-23 02:03:13,609 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.4625 [2024-11-23 02:03:13,609 INFO L175 Difference]: Start difference. First operand has 60 places, 40 transitions, 210 flow. Second operand 10 states and 148 transitions. [2024-11-23 02:03:13,609 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 69 places, 160 transitions, 1219 flow [2024-11-23 02:03:13,641 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 160 transitions, 1149 flow, removed 21 selfloop flow, removed 2 redundant places. [2024-11-23 02:03:13,642 INFO L231 Difference]: Finished difference. Result has 71 places, 67 transitions, 470 flow [2024-11-23 02:03:13,643 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=58, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=24, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=470, PETRI_PLACES=71, PETRI_TRANSITIONS=67} [2024-11-23 02:03:13,643 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 38 predicate places. [2024-11-23 02:03:13,643 INFO L471 AbstractCegarLoop]: Abstraction has has 71 places, 67 transitions, 470 flow [2024-11-23 02:03:13,644 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 8.615384615384615) internal successors, (112), 13 states have internal predecessors, (112), 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) [2024-11-23 02:03:13,644 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:13,644 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:13,652 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-23 02:03:13,844 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 [2024-11-23 02:03:13,845 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:13,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:13,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1966708957, now seen corresponding path program 2 times [2024-11-23 02:03:13,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:13,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675741456] [2024-11-23 02:03:13,846 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:13,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:13,854 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:13,854 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:13,909 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 02:03:13,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:13,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675741456] [2024-11-23 02:03:13,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1675741456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:13,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698500190] [2024-11-23 02:03:13,910 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:13,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:13,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:13,913 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) [2024-11-23 02:03:13,914 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-23 02:03:13,962 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:13,962 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:13,963 INFO L255 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 02:03:13,964 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:14,023 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 02:03:14,023 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:14,069 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-23 02:03:14,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698500190] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:14,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:14,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-11-23 02:03:14,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1764807827] [2024-11-23 02:03:14,070 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:14,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 02:03:14,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:14,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 02:03:14,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 02:03:14,097 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2024-11-23 02:03:14,098 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 71 places, 67 transitions, 470 flow. Second operand has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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) [2024-11-23 02:03:14,098 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:14,098 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2024-11-23 02:03:14,098 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:14,857 INFO L124 PetriNetUnfolderBase]: 3414/6353 cut-off events. [2024-11-23 02:03:14,857 INFO L125 PetriNetUnfolderBase]: For 14825/14853 co-relation queries the response was YES. [2024-11-23 02:03:14,871 INFO L83 FinitePrefix]: Finished finitePrefix Result has 21418 conditions, 6353 events. 3414/6353 cut-off events. For 14825/14853 co-relation queries the response was YES. Maximal size of possible extension queue 205. Compared 42817 event pairs, 392 based on Foata normal form. 98/6449 useless extension candidates. Maximal degree in co-relation 21396. Up to 1641 conditions per place. [2024-11-23 02:03:14,890 INFO L140 encePairwiseOnDemand]: 23/32 looper letters, 77 selfloop transitions, 18 changer transitions 98/197 dead transitions. [2024-11-23 02:03:14,890 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 80 places, 197 transitions, 1803 flow [2024-11-23 02:03:14,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-23 02:03:14,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2024-11-23 02:03:14,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 147 transitions. [2024-11-23 02:03:14,892 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.459375 [2024-11-23 02:03:14,892 INFO L175 Difference]: Start difference. First operand has 71 places, 67 transitions, 470 flow. Second operand 10 states and 147 transitions. [2024-11-23 02:03:14,892 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 80 places, 197 transitions, 1803 flow [2024-11-23 02:03:14,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 79 places, 197 transitions, 1802 flow, removed 0 selfloop flow, removed 1 redundant places. [2024-11-23 02:03:14,956 INFO L231 Difference]: Finished difference. Result has 85 places, 68 transitions, 556 flow [2024-11-23 02:03:14,957 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=70, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=51, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=556, PETRI_PLACES=85, PETRI_TRANSITIONS=68} [2024-11-23 02:03:14,957 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 52 predicate places. [2024-11-23 02:03:14,957 INFO L471 AbstractCegarLoop]: Abstraction has has 85 places, 68 transitions, 556 flow [2024-11-23 02:03:14,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.25) internal successors, (74), 8 states have internal predecessors, (74), 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) [2024-11-23 02:03:14,958 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:14,958 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:14,967 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-23 02:03:15,158 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 [2024-11-23 02:03:15,159 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:15,159 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:15,159 INFO L85 PathProgramCache]: Analyzing trace with hash -1800030308, now seen corresponding path program 1 times [2024-11-23 02:03:15,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:15,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [35105033] [2024-11-23 02:03:15,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:15,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:15,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:15,352 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:15,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:15,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [35105033] [2024-11-23 02:03:15,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [35105033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:15,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1416762626] [2024-11-23 02:03:15,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:15,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:15,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:15,355 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) [2024-11-23 02:03:15,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-23 02:03:15,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:15,419 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 02:03:15,420 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:15,466 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:15,466 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:15,636 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:15,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1416762626] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:15,637 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:15,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-11-23 02:03:15,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [122782862] [2024-11-23 02:03:15,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:15,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 02:03:15,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:15,639 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 02:03:15,639 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-11-23 02:03:15,665 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-23 02:03:15,666 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 68 transitions, 556 flow. Second operand has 24 states, 24 states have (on average 12.333333333333334) internal successors, (296), 24 states have internal predecessors, (296), 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) [2024-11-23 02:03:15,666 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:15,666 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-23 02:03:15,666 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:16,810 INFO L124 PetriNetUnfolderBase]: 2805/5594 cut-off events. [2024-11-23 02:03:16,810 INFO L125 PetriNetUnfolderBase]: For 26813/27005 co-relation queries the response was YES. [2024-11-23 02:03:16,828 INFO L83 FinitePrefix]: Finished finitePrefix Result has 22770 conditions, 5594 events. 2805/5594 cut-off events. For 26813/27005 co-relation queries the response was YES. Maximal size of possible extension queue 104. Compared 36402 event pairs, 340 based on Foata normal form. 192/5774 useless extension candidates. Maximal degree in co-relation 22741. Up to 931 conditions per place. [2024-11-23 02:03:16,923 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 540 selfloop transitions, 42 changer transitions 80/672 dead transitions. [2024-11-23 02:03:16,927 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 672 transitions, 7118 flow [2024-11-23 02:03:16,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 02:03:16,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-23 02:03:16,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 486 transitions. [2024-11-23 02:03:16,930 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6903409090909091 [2024-11-23 02:03:16,930 INFO L175 Difference]: Start difference. First operand has 85 places, 68 transitions, 556 flow. Second operand 22 states and 486 transitions. [2024-11-23 02:03:16,930 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 672 transitions, 7118 flow [2024-11-23 02:03:16,970 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 98 places, 672 transitions, 6691 flow, removed 213 selfloop flow, removed 4 redundant places. [2024-11-23 02:03:16,975 INFO L231 Difference]: Finished difference. Result has 104 places, 92 transitions, 885 flow [2024-11-23 02:03:16,976 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=529, PETRI_DIFFERENCE_MINUEND_PLACES=77, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=68, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=885, PETRI_PLACES=104, PETRI_TRANSITIONS=92} [2024-11-23 02:03:16,976 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 71 predicate places. [2024-11-23 02:03:16,977 INFO L471 AbstractCegarLoop]: Abstraction has has 104 places, 92 transitions, 885 flow [2024-11-23 02:03:16,978 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.333333333333334) internal successors, (296), 24 states have internal predecessors, (296), 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) [2024-11-23 02:03:16,978 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:16,978 INFO L204 CegarLoopForPetriNet]: trace histogram [5, 5, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:16,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-23 02:03:17,178 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 [2024-11-23 02:03:17,179 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:17,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:17,179 INFO L85 PathProgramCache]: Analyzing trace with hash 1906910182, now seen corresponding path program 1 times [2024-11-23 02:03:17,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:17,180 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [403669560] [2024-11-23 02:03:17,180 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:17,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:17,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:17,304 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:17,304 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:17,304 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [403669560] [2024-11-23 02:03:17,304 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [403669560] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:17,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [717521973] [2024-11-23 02:03:17,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-23 02:03:17,305 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:17,305 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:17,307 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) [2024-11-23 02:03:17,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-23 02:03:17,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-23 02:03:17,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-23 02:03:17,361 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:17,400 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:17,400 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:17,533 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-23 02:03:17,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [717521973] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:17,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:17,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 23 [2024-11-23 02:03:17,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [293875231] [2024-11-23 02:03:17,534 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:17,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-23 02:03:17,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:17,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-23 02:03:17,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-11-23 02:03:17,558 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 11 out of 32 [2024-11-23 02:03:17,559 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 92 transitions, 885 flow. Second operand has 24 states, 24 states have (on average 12.333333333333334) internal successors, (296), 24 states have internal predecessors, (296), 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) [2024-11-23 02:03:17,559 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:17,559 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 11 of 32 [2024-11-23 02:03:17,559 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:19,189 INFO L124 PetriNetUnfolderBase]: 5540/11056 cut-off events. [2024-11-23 02:03:19,189 INFO L125 PetriNetUnfolderBase]: For 64113/64171 co-relation queries the response was YES. [2024-11-23 02:03:19,214 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47591 conditions, 11056 events. 5540/11056 cut-off events. For 64113/64171 co-relation queries the response was YES. Maximal size of possible extension queue 193. Compared 79315 event pairs, 926 based on Foata normal form. 474/11518 useless extension candidates. Maximal degree in co-relation 47559. Up to 1936 conditions per place. [2024-11-23 02:03:19,257 INFO L140 encePairwiseOnDemand]: 28/32 looper letters, 1054 selfloop transitions, 42 changer transitions 20/1126 dead transitions. [2024-11-23 02:03:19,257 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 125 places, 1126 transitions, 14497 flow [2024-11-23 02:03:19,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-23 02:03:19,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2024-11-23 02:03:19,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 436 transitions. [2024-11-23 02:03:19,259 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.6193181818181818 [2024-11-23 02:03:19,259 INFO L175 Difference]: Start difference. First operand has 104 places, 92 transitions, 885 flow. Second operand 22 states and 436 transitions. [2024-11-23 02:03:19,259 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 125 places, 1126 transitions, 14497 flow [2024-11-23 02:03:19,372 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 1126 transitions, 12061 flow, removed 840 selfloop flow, removed 9 redundant places. [2024-11-23 02:03:19,380 INFO L231 Difference]: Finished difference. Result has 122 places, 116 transitions, 1137 flow [2024-11-23 02:03:19,380 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=769, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=1137, PETRI_PLACES=122, PETRI_TRANSITIONS=116} [2024-11-23 02:03:19,381 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 89 predicate places. [2024-11-23 02:03:19,381 INFO L471 AbstractCegarLoop]: Abstraction has has 122 places, 116 transitions, 1137 flow [2024-11-23 02:03:19,381 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 12.333333333333334) internal successors, (296), 24 states have internal predecessors, (296), 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) [2024-11-23 02:03:19,381 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:19,381 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:19,390 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-23 02:03:19,582 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 [2024-11-23 02:03:19,582 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:19,582 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:19,583 INFO L85 PathProgramCache]: Analyzing trace with hash -1598126040, now seen corresponding path program 2 times [2024-11-23 02:03:19,583 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:19,583 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524906424] [2024-11-23 02:03:19,583 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:19,583 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:19,592 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:19,593 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:19,660 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 02:03:19,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:19,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524906424] [2024-11-23 02:03:19,660 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524906424] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:19,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731453656] [2024-11-23 02:03:19,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:19,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:19,661 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:19,664 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) [2024-11-23 02:03:19,665 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-23 02:03:19,717 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:19,717 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:19,718 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 02:03:19,719 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:19,798 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 02:03:19,798 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 02:03:19,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731453656] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:19,964 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:19,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 6 [2024-11-23 02:03:19,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510862190] [2024-11-23 02:03:19,964 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:19,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-23 02:03:19,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:19,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-23 02:03:19,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-23 02:03:19,988 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2024-11-23 02:03:19,989 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 116 transitions, 1137 flow. Second operand has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2024-11-23 02:03:19,989 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:19,989 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2024-11-23 02:03:19,989 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:21,297 INFO L124 PetriNetUnfolderBase]: 5436/11030 cut-off events. [2024-11-23 02:03:21,297 INFO L125 PetriNetUnfolderBase]: For 61141/61144 co-relation queries the response was YES. [2024-11-23 02:03:21,339 INFO L83 FinitePrefix]: Finished finitePrefix Result has 47739 conditions, 11030 events. 5436/11030 cut-off events. For 61141/61144 co-relation queries the response was YES. Maximal size of possible extension queue 191. Compared 79396 event pairs, 1701 based on Foata normal form. 70/11098 useless extension candidates. Maximal degree in co-relation 47701. Up to 4612 conditions per place. [2024-11-23 02:03:21,363 INFO L140 encePairwiseOnDemand]: 24/32 looper letters, 60 selfloop transitions, 3 changer transitions 130/197 dead transitions. [2024-11-23 02:03:21,364 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 197 transitions, 2371 flow [2024-11-23 02:03:21,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 02:03:21,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 02:03:21,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 107 transitions. [2024-11-23 02:03:21,365 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.41796875 [2024-11-23 02:03:21,365 INFO L175 Difference]: Start difference. First operand has 122 places, 116 transitions, 1137 flow. Second operand 8 states and 107 transitions. [2024-11-23 02:03:21,365 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 197 transitions, 2371 flow [2024-11-23 02:03:21,716 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 197 transitions, 2029 flow, removed 83 selfloop flow, removed 20 redundant places. [2024-11-23 02:03:21,718 INFO L231 Difference]: Finished difference. Result has 108 places, 64 transitions, 480 flow [2024-11-23 02:03:21,719 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=931, PETRI_DIFFERENCE_MINUEND_PLACES=101, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=115, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=112, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=480, PETRI_PLACES=108, PETRI_TRANSITIONS=64} [2024-11-23 02:03:21,720 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 75 predicate places. [2024-11-23 02:03:21,720 INFO L471 AbstractCegarLoop]: Abstraction has has 108 places, 64 transitions, 480 flow [2024-11-23 02:03:21,720 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 9.75) internal successors, (78), 8 states have internal predecessors, (78), 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) [2024-11-23 02:03:21,720 INFO L196 CegarLoopForPetriNet]: Found error trace [2024-11-23 02:03:21,721 INFO L204 CegarLoopForPetriNet]: trace histogram [11, 11, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:21,729 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-23 02:03:21,921 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 [2024-11-23 02:03:21,922 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 12 more)] === [2024-11-23 02:03:21,922 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-23 02:03:21,922 INFO L85 PathProgramCache]: Analyzing trace with hash 807848294, now seen corresponding path program 2 times [2024-11-23 02:03:21,922 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-23 02:03:21,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360404456] [2024-11-23 02:03:21,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:21,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-23 02:03:21,931 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:21,931 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:21,985 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 02:03:21,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-23 02:03:21,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360404456] [2024-11-23 02:03:21,986 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [360404456] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-23 02:03:21,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1510750975] [2024-11-23 02:03:21,986 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-23 02:03:21,986 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-23 02:03:21,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-23 02:03:21,988 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) [2024-11-23 02:03:21,991 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-23 02:03:22,040 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-11-23 02:03:22,041 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-23 02:03:22,041 INFO L255 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-23 02:03:22,043 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-23 02:03:22,104 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 02:03:22,104 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-23 02:03:22,189 INFO L134 CoverageAnalysis]: Checked inductivity of 165 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 145 trivial. 0 not checked. [2024-11-23 02:03:22,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1510750975] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-23 02:03:22,190 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-23 02:03:22,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-23 02:03:22,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571782664] [2024-11-23 02:03:22,190 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-23 02:03:22,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-11-23 02:03:22,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-23 02:03:22,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-11-23 02:03:22,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=126, Unknown=0, NotChecked=0, Total=156 [2024-11-23 02:03:22,224 INFO L467 CegarLoopForPetriNet]: Number of universal loopers: 7 out of 32 [2024-11-23 02:03:22,224 INFO L103 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 108 places, 64 transitions, 480 flow. Second operand has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 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) [2024-11-23 02:03:22,224 INFO L112 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2024-11-23 02:03:22,224 INFO L113 encePairwiseOnDemand]: Number of universal subtrahend loopers: 7 of 32 [2024-11-23 02:03:22,224 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2024-11-23 02:03:22,683 INFO L124 PetriNetUnfolderBase]: 2616/5346 cut-off events. [2024-11-23 02:03:22,683 INFO L125 PetriNetUnfolderBase]: For 18119/18119 co-relation queries the response was YES. [2024-11-23 02:03:22,693 INFO L83 FinitePrefix]: Finished finitePrefix Result has 19663 conditions, 5346 events. 2616/5346 cut-off events. For 18119/18119 co-relation queries the response was YES. Maximal size of possible extension queue 101. Compared 33177 event pairs, 2 based on Foata normal form. 79/5424 useless extension candidates. Maximal degree in co-relation 19635. Up to 2191 conditions per place. [2024-11-23 02:03:22,696 INFO L140 encePairwiseOnDemand]: 24/32 looper letters, 0 selfloop transitions, 0 changer transitions 122/122 dead transitions. [2024-11-23 02:03:22,696 INFO L145 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 122 transitions, 1093 flow [2024-11-23 02:03:22,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-23 02:03:22,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2024-11-23 02:03:22,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 96 transitions. [2024-11-23 02:03:22,697 INFO L512 CegarLoopForPetriNet]: DFA transition density 0.375 [2024-11-23 02:03:22,697 INFO L175 Difference]: Start difference. First operand has 108 places, 64 transitions, 480 flow. Second operand 8 states and 96 transitions. [2024-11-23 02:03:22,697 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 122 transitions, 1093 flow [2024-11-23 02:03:22,723 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 83 places, 122 transitions, 835 flow, removed 27 selfloop flow, removed 24 redundant places. [2024-11-23 02:03:22,724 INFO L231 Difference]: Finished difference. Result has 83 places, 0 transitions, 0 flow [2024-11-23 02:03:22,724 INFO L260 CegarLoopForPetriNet]: {PETRI_ALPHABET=32, PETRI_DIFFERENCE_MINUEND_FLOW=298, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=83, PETRI_TRANSITIONS=0} [2024-11-23 02:03:22,725 INFO L277 CegarLoopForPetriNet]: 33 programPoint places, 50 predicate places. [2024-11-23 02:03:22,725 INFO L471 AbstractCegarLoop]: Abstraction has has 83 places, 0 transitions, 0 flow [2024-11-23 02:03:22,725 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 9.461538461538462) internal successors, (123), 13 states have internal predecessors, (123), 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) [2024-11-23 02:03:22,727 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 14 remaining) [2024-11-23 02:03:22,727 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 14 remaining) [2024-11-23 02:03:22,727 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 14 remaining) [2024-11-23 02:03:22,728 INFO L782 garLoopResultBuilder]: Registering result SAFE for location f2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 14 remaining) [2024-11-23 02:03:22,736 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-23 02:03:22,929 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 [2024-11-23 02:03:22,929 INFO L407 BasicCegarLoop]: Path program histogram: [2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-11-23 02:03:22,934 INFO L239 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-11-23 02:03:22,934 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-23 02:03:22,940 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 02:03:22 BasicIcfg [2024-11-23 02:03:22,940 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-23 02:03:22,940 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-23 02:03:22,940 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-23 02:03:22,941 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-23 02:03:22,941 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 02:03:08" (3/4) ... [2024-11-23 02:03:22,944 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-23 02:03:22,946 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f1 [2024-11-23 02:03:22,946 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure f2 [2024-11-23 02:03:22,950 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 36 nodes and edges [2024-11-23 02:03:22,951 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-23 02:03:22,951 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-23 02:03:22,951 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-23 02:03:23,024 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-23 02:03:23,025 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-23 02:03:23,025 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-23 02:03:23,025 INFO L158 Benchmark]: Toolchain (without parser) took 16056.50ms. Allocated memory was 159.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 86.8MB in the beginning and 926.9MB in the end (delta: -840.1MB). Peak memory consumption was 465.9MB. Max. memory is 16.1GB. [2024-11-23 02:03:23,026 INFO L158 Benchmark]: CDTParser took 0.90ms. Allocated memory is still 159.4MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-23 02:03:23,026 INFO L158 Benchmark]: CACSL2BoogieTranslator took 605.06ms. Allocated memory is still 159.4MB. Free memory was 86.5MB in the beginning and 119.7MB in the end (delta: -33.2MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-11-23 02:03:23,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.72ms. Allocated memory is still 159.4MB. Free memory was 119.7MB in the beginning and 117.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:03:23,027 INFO L158 Benchmark]: Boogie Preprocessor took 57.27ms. Allocated memory is still 159.4MB. Free memory was 117.2MB in the beginning and 115.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-23 02:03:23,027 INFO L158 Benchmark]: RCFGBuilder took 552.28ms. Allocated memory is still 159.4MB. Free memory was 115.1MB in the beginning and 90.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-23 02:03:23,027 INFO L158 Benchmark]: TraceAbstraction took 14709.32ms. Allocated memory was 159.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 89.9MB in the beginning and 931.1MB in the end (delta: -841.2MB). Peak memory consumption was 475.8MB. Max. memory is 16.1GB. [2024-11-23 02:03:23,027 INFO L158 Benchmark]: Witness Printer took 84.52ms. Allocated memory is still 1.5GB. Free memory was 931.1MB in the beginning and 926.9MB in the end (delta: 4.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-23 02:03:23,029 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.90ms. Allocated memory is still 159.4MB. Free memory is still 113.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 605.06ms. Allocated memory is still 159.4MB. Free memory was 86.5MB in the beginning and 119.7MB in the end (delta: -33.2MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.72ms. Allocated memory is still 159.4MB. Free memory was 119.7MB in the beginning and 117.7MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 57.27ms. Allocated memory is still 159.4MB. Free memory was 117.2MB in the beginning and 115.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 552.28ms. Allocated memory is still 159.4MB. Free memory was 115.1MB in the beginning and 90.4MB in the end (delta: 24.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * TraceAbstraction took 14709.32ms. Allocated memory was 159.4MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 89.9MB in the beginning and 931.1MB in the end (delta: -841.2MB). Peak memory consumption was 475.8MB. Max. memory is 16.1GB. * Witness Printer took 84.52ms. Allocated memory is still 1.5GB. Free memory was 931.1MB in the beginning and 926.9MB 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, 55 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: 14.6s, OverallIterations: 14, TraceHistogramMax: 11, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 9.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1686 SdHoareTripleChecker+Valid, 2.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1631 mSDsluCounter, 457 SdHoareTripleChecker+Invalid, 1.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 424 mSDsCounter, 34 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 2920 IncrementalHoareTripleChecker+Invalid, 2954 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 34 mSolverCounterUnsat, 33 mSDtfsCounter, 2920 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 574 GetRequests, 392 SyntacticMatches, 8 SemanticMatches, 174 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 622 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1137occurred in iteration=12, InterpolantAutomatonStates: 126, 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, 2.5s InterpolantComputationTime, 499 NumberOfCodeBlocks, 331 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 677 ConstructedInterpolants, 0 QuantifiedInterpolants, 1853 SizeOfPredicates, 42 NumberOfNonLiveVariables, 770 ConjunctsInSsa, 70 ConjunctsInUnsatCore, 32 InterpolantComputations, 6 PerfectInterpolantSequences, 1006/1376 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! [2024-11-23 02:03:23,051 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE