./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/reducercommutativity/max60-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c7c6ca5d Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/reducercommutativity/max60-2.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6dbb3c8dbc9ecf6e4f72a22b68126998e2267c3eb50185a59b3a9d03df64099d --- Real Ultimate output --- This is Ultimate 0.2.5-?-c7c6ca5-m [2024-11-08 09:51:52,643 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-08 09:51:52,772 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-08 09:51:52,776 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-08 09:51:52,776 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-08 09:51:52,811 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-08 09:51:52,812 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-08 09:51:52,813 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-08 09:51:52,813 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-08 09:51:52,814 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-08 09:51:52,815 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-08 09:51:52,815 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-08 09:51:52,815 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-08 09:51:52,816 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-08 09:51:52,817 INFO L153 SettingsManager]: * Use SBE=true [2024-11-08 09:51:52,818 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-08 09:51:52,818 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-08 09:51:52,818 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-08 09:51:52,819 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-08 09:51:52,819 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-08 09:51:52,822 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-08 09:51:52,823 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-08 09:51:52,823 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-08 09:51:52,823 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-08 09:51:52,823 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-08 09:51:52,824 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-08 09:51:52,824 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-08 09:51:52,824 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-08 09:51:52,824 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-08 09:51:52,825 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-08 09:51:52,825 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-08 09:51:52,825 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-08 09:51:52,825 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 09:51:52,825 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-08 09:51:52,826 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-08 09:51:52,826 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-08 09:51:52,826 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-08 09:51:52,826 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-08 09:51:52,827 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-08 09:51:52,827 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-08 09:51:52,827 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-08 09:51:52,828 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-08 09:51:52,828 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6dbb3c8dbc9ecf6e4f72a22b68126998e2267c3eb50185a59b3a9d03df64099d [2024-11-08 09:51:53,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-08 09:51:53,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-08 09:51:53,127 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-08 09:51:53,128 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-08 09:51:53,129 INFO L274 PluginConnector]: CDTParser initialized [2024-11-08 09:51:53,130 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max60-2.i [2024-11-08 09:51:54,488 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-08 09:51:54,694 INFO L384 CDTParser]: Found 1 translation units. [2024-11-08 09:51:54,698 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max60-2.i [2024-11-08 09:51:54,708 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683d2097e/c6ccc20ae3ff479c90df5b1f3354843d/FLAGc081e4d1d [2024-11-08 09:51:55,075 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/683d2097e/c6ccc20ae3ff479c90df5b1f3354843d [2024-11-08 09:51:55,077 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-08 09:51:55,078 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-08 09:51:55,082 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-08 09:51:55,082 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-08 09:51:55,087 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-08 09:51:55,087 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,088 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6de5912d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55, skipping insertion in model container [2024-11-08 09:51:55,089 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,105 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-08 09:51:55,333 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max60-2.i[1290,1303] [2024-11-08 09:51:55,339 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 09:51:55,352 INFO L200 MainTranslator]: Completed pre-run [2024-11-08 09:51:55,391 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max60-2.i[1290,1303] [2024-11-08 09:51:55,392 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-08 09:51:55,407 INFO L204 MainTranslator]: Completed translation [2024-11-08 09:51:55,408 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55 WrapperNode [2024-11-08 09:51:55,408 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-08 09:51:55,409 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-08 09:51:55,410 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-08 09:51:55,410 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-08 09:51:55,416 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,435 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,455 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 69 [2024-11-08 09:51:55,456 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-08 09:51:55,457 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-08 09:51:55,457 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-08 09:51:55,457 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-08 09:51:55,466 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,467 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,469 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,485 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5]. [2024-11-08 09:51:55,486 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,486 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,492 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,495 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,496 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,497 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-08 09:51:55,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-08 09:51:55,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-08 09:51:55,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-08 09:51:55,503 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (1/1) ... [2024-11-08 09:51:55,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-08 09:51:55,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:51:55,531 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) [2024-11-08 09:51:55,533 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 [2024-11-08 09:51:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-08 09:51:55,576 INFO L130 BoogieDeclarations]: Found specification of procedure max [2024-11-08 09:51:55,577 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2024-11-08 09:51:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-08 09:51:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-08 09:51:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-08 09:51:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-08 09:51:55,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-08 09:51:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-08 09:51:55,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-08 09:51:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-08 09:51:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-08 09:51:55,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-08 09:51:55,648 INFO L238 CfgBuilder]: Building ICFG [2024-11-08 09:51:55,649 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-08 09:51:55,788 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-08 09:51:55,788 INFO L287 CfgBuilder]: Performing block encoding [2024-11-08 09:51:55,806 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-08 09:51:55,806 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-08 09:51:55,807 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:51:55 BoogieIcfgContainer [2024-11-08 09:51:55,807 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-08 09:51:55,810 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-08 09:51:55,810 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-08 09:51:55,814 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-08 09:51:55,814 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.11 09:51:55" (1/3) ... [2024-11-08 09:51:55,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e94118d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:51:55, skipping insertion in model container [2024-11-08 09:51:55,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.11 09:51:55" (2/3) ... [2024-11-08 09:51:55,816 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e94118d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.11 09:51:55, skipping insertion in model container [2024-11-08 09:51:55,816 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.11 09:51:55" (3/3) ... [2024-11-08 09:51:55,818 INFO L112 eAbstractionObserver]: Analyzing ICFG max60-2.i [2024-11-08 09:51:55,835 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-08 09:51:55,835 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-08 09:51:55,888 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-08 09:51:55,893 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;@48d51a3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-08 09:51:55,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-08 09:51:55,897 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:51:55,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 09:51:55,902 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:51:55,903 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:51:55,904 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:51:55,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:51:55,908 INFO L85 PathProgramCache]: Analyzing trace with hash 350697856, now seen corresponding path program 1 times [2024-11-08 09:51:55,914 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:51:55,914 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493383789] [2024-11-08 09:51:55,914 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:55,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:51:56,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 09:51:56,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 09:51:56,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 09:51:56,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,116 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 09:51:56,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:51:56,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493383789] [2024-11-08 09:51:56,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493383789] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 09:51:56,118 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-08 09:51:56,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-08 09:51:56,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736400254] [2024-11-08 09:51:56,121 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 09:51:56,133 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-08 09:51:56,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:51:56,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-08 09:51:56,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 09:51:56,162 INFO L87 Difference]: Start difference. First operand has 29 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 09:51:56,179 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:51:56,179 INFO L93 Difference]: Finished difference Result 54 states and 73 transitions. [2024-11-08 09:51:56,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-08 09:51:56,181 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-08 09:51:56,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:51:56,186 INFO L225 Difference]: With dead ends: 54 [2024-11-08 09:51:56,186 INFO L226 Difference]: Without dead ends: 25 [2024-11-08 09:51:56,189 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-08 09:51:56,192 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 09:51:56,193 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 09:51:56,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-08 09:51:56,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-08 09:51:56,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:51:56,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-11-08 09:51:56,225 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 29 [2024-11-08 09:51:56,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:51:56,225 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-11-08 09:51:56,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 09:51:56,226 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-08 09:51:56,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-08 09:51:56,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:51:56,228 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:51:56,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-08 09:51:56,228 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:51:56,229 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:51:56,229 INFO L85 PathProgramCache]: Analyzing trace with hash -731724275, now seen corresponding path program 1 times [2024-11-08 09:51:56,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:51:56,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61203790] [2024-11-08 09:51:56,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:56,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:51:56,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-08 09:51:56,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-08 09:51:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-08 09:51:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,413 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-08 09:51:56,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:51:56,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61203790] [2024-11-08 09:51:56,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61203790] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:51:56,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1373465730] [2024-11-08 09:51:56,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:56,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:51:56,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:51:56,417 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) [2024-11-08 09:51:56,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-08 09:51:56,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,535 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 09:51:56,541 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:51:56,570 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 09:51:56,570 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 09:51:56,570 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1373465730] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 09:51:56,571 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 09:51:56,571 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-08 09:51:56,571 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289907880] [2024-11-08 09:51:56,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 09:51:56,575 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 09:51:56,575 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:51:56,576 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 09:51:56,576 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 09:51:56,576 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 09:51:56,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:51:56,597 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2024-11-08 09:51:56,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 09:51:56,598 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-08 09:51:56,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:51:56,598 INFO L225 Difference]: With dead ends: 48 [2024-11-08 09:51:56,599 INFO L226 Difference]: Without dead ends: 27 [2024-11-08 09:51:56,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 09:51:56,602 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 09:51:56,603 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 53 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 09:51:56,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-08 09:51:56,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 26. [2024-11-08 09:51:56,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 21 states have internal predecessors, (25), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:51:56,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 31 transitions. [2024-11-08 09:51:56,612 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 31 transitions. Word has length 29 [2024-11-08 09:51:56,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:51:56,612 INFO L471 AbstractCegarLoop]: Abstraction has 26 states and 31 transitions. [2024-11-08 09:51:56,612 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-08 09:51:56,613 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 31 transitions. [2024-11-08 09:51:56,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-08 09:51:56,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:51:56,614 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:51:56,630 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-08 09:51:56,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:51:56,820 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:51:56,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:51:56,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1391874411, now seen corresponding path program 1 times [2024-11-08 09:51:56,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:51:56,822 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1290712478] [2024-11-08 09:51:56,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:56,822 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:51:56,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 09:51:56,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-08 09:51:56,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-08 09:51:56,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:56,991 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 09:51:56,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:51:56,995 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1290712478] [2024-11-08 09:51:56,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1290712478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:51:56,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043042296] [2024-11-08 09:51:56,996 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:56,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:51:56,996 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:51:57,000 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) [2024-11-08 09:51:57,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-08 09:51:57,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:57,083 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 09:51:57,085 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:51:57,100 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-08 09:51:57,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 09:51:57,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043042296] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 09:51:57,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 09:51:57,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-08 09:51:57,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627683562] [2024-11-08 09:51:57,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 09:51:57,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 09:51:57,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:51:57,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 09:51:57,105 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 09:51:57,105 INFO L87 Difference]: Start difference. First operand 26 states and 31 transitions. Second operand has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 09:51:57,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:51:57,119 INFO L93 Difference]: Finished difference Result 49 states and 62 transitions. [2024-11-08 09:51:57,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 09:51:57,121 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 31 [2024-11-08 09:51:57,121 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:51:57,122 INFO L225 Difference]: With dead ends: 49 [2024-11-08 09:51:57,122 INFO L226 Difference]: Without dead ends: 30 [2024-11-08 09:51:57,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-08 09:51:57,123 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 4 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 09:51:57,124 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 09:51:57,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-11-08 09:51:57,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 27. [2024-11-08 09:51:57,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:51:57,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2024-11-08 09:51:57,133 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 31 [2024-11-08 09:51:57,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:51:57,133 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2024-11-08 09:51:57,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 09:51:57,133 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2024-11-08 09:51:57,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-08 09:51:57,134 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:51:57,135 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:51:57,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-08 09:51:57,340 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,SelfDestructingSolverStorable2 [2024-11-08 09:51:57,341 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:51:57,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:51:57,341 INFO L85 PathProgramCache]: Analyzing trace with hash 1997828742, now seen corresponding path program 1 times [2024-11-08 09:51:57,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:51:57,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1239370624] [2024-11-08 09:51:57,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:57,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:51:57,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:57,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 09:51:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:57,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 09:51:57,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:57,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-08 09:51:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:57,514 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 09:51:57,516 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:51:57,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1239370624] [2024-11-08 09:51:57,517 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1239370624] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:51:57,517 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151768781] [2024-11-08 09:51:57,518 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:57,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:51:57,518 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:51:57,522 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) [2024-11-08 09:51:57,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-08 09:51:57,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:57,602 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-08 09:51:57,604 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:51:57,620 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-08 09:51:57,624 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-08 09:51:57,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151768781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-08 09:51:57,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-08 09:51:57,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-08 09:51:57,625 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383698905] [2024-11-08 09:51:57,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-08 09:51:57,625 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-08 09:51:57,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:51:57,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-08 09:51:57,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 09:51:57,628 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 09:51:57,643 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:51:57,644 INFO L93 Difference]: Finished difference Result 44 states and 51 transitions. [2024-11-08 09:51:57,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-08 09:51:57,645 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2024-11-08 09:51:57,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:51:57,646 INFO L225 Difference]: With dead ends: 44 [2024-11-08 09:51:57,646 INFO L226 Difference]: Without dead ends: 29 [2024-11-08 09:51:57,646 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-08 09:51:57,647 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 09:51:57,647 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 52 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 09:51:57,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-08 09:51:57,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2024-11-08 09:51:57,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 23 states have (on average 1.173913043478261) internal successors, (27), 23 states have internal predecessors, (27), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:51:57,655 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 33 transitions. [2024-11-08 09:51:57,655 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 33 transitions. Word has length 43 [2024-11-08 09:51:57,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:51:57,656 INFO L471 AbstractCegarLoop]: Abstraction has 28 states and 33 transitions. [2024-11-08 09:51:57,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-08 09:51:57,657 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 33 transitions. [2024-11-08 09:51:57,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-08 09:51:57,658 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:51:57,658 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:51:57,675 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-08 09:51:57,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:51:57,859 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:51:57,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:51:57,860 INFO L85 PathProgramCache]: Analyzing trace with hash 271283108, now seen corresponding path program 1 times [2024-11-08 09:51:57,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:51:57,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257110301] [2024-11-08 09:51:57,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:57,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:51:57,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:57,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-08 09:51:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:57,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-08 09:51:57,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:57,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-08 09:51:57,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:57,985 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-08 09:51:57,988 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:51:57,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257110301] [2024-11-08 09:51:57,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257110301] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:51:57,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049624524] [2024-11-08 09:51:57,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:57,989 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:51:57,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:51:57,991 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) [2024-11-08 09:51:57,993 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-08 09:51:58,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:58,074 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-08 09:51:58,076 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:51:58,108 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 09:51:58,112 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:51:58,156 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-08 09:51:58,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049624524] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:51:58,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:51:58,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2024-11-08 09:51:58,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003796652] [2024-11-08 09:51:58,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:51:58,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-08 09:51:58,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:51:58,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-08 09:51:58,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-08 09:51:58,158 INFO L87 Difference]: Start difference. First operand 28 states and 33 transitions. Second operand has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 09:51:58,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:51:58,219 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2024-11-08 09:51:58,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-08 09:51:58,222 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 45 [2024-11-08 09:51:58,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:51:58,223 INFO L225 Difference]: With dead ends: 64 [2024-11-08 09:51:58,224 INFO L226 Difference]: Without dead ends: 41 [2024-11-08 09:51:58,224 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-08 09:51:58,225 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 8 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-08 09:51:58,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 94 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-08 09:51:58,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2024-11-08 09:51:58,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 38. [2024-11-08 09:51:58,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 33 states have (on average 1.1515151515151516) internal successors, (38), 33 states have internal predecessors, (38), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:51:58,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 44 transitions. [2024-11-08 09:51:58,236 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 44 transitions. Word has length 45 [2024-11-08 09:51:58,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:51:58,236 INFO L471 AbstractCegarLoop]: Abstraction has 38 states and 44 transitions. [2024-11-08 09:51:58,237 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.888888888888889) internal successors, (44), 9 states have internal predecessors, (44), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 09:51:58,237 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 44 transitions. [2024-11-08 09:51:58,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-08 09:51:58,242 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:51:58,242 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:51:58,259 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-08 09:51:58,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:51:58,443 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:51:58,443 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:51:58,443 INFO L85 PathProgramCache]: Analyzing trace with hash 344212953, now seen corresponding path program 2 times [2024-11-08 09:51:58,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:51:58,443 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014414781] [2024-11-08 09:51:58,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:58,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:51:58,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:58,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2024-11-08 09:51:58,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:58,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-08 09:51:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:58,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-08 09:51:58,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:58,584 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2024-11-08 09:51:58,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:51:58,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2014414781] [2024-11-08 09:51:58,586 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2014414781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:51:58,586 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [303080496] [2024-11-08 09:51:58,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 09:51:58,587 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:51:58,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:51:58,588 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) [2024-11-08 09:51:58,590 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-08 09:51:58,688 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 09:51:58,688 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:51:58,690 INFO L255 TraceCheckSpWp]: Trace formula consists of 239 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-08 09:51:58,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:51:58,749 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-08 09:51:58,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:51:58,844 INFO L134 CoverageAnalysis]: Checked inductivity of 110 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 94 trivial. 0 not checked. [2024-11-08 09:51:58,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [303080496] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:51:58,845 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:51:58,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-08 09:51:58,846 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [381001564] [2024-11-08 09:51:58,846 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:51:58,846 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-08 09:51:58,846 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:51:58,847 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-08 09:51:58,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-08 09:51:58,848 INFO L87 Difference]: Start difference. First operand 38 states and 44 transitions. Second operand has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 09:51:58,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:51:58,915 INFO L93 Difference]: Finished difference Result 80 states and 98 transitions. [2024-11-08 09:51:58,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-08 09:51:58,915 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 63 [2024-11-08 09:51:58,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:51:58,917 INFO L225 Difference]: With dead ends: 80 [2024-11-08 09:51:58,918 INFO L226 Difference]: Without dead ends: 53 [2024-11-08 09:51:58,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-08 09:51:58,920 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:51:58,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 140 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:51:58,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2024-11-08 09:51:58,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2024-11-08 09:51:58,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 47 states have (on average 1.1063829787234043) internal successors, (52), 47 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:51:58,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 58 transitions. [2024-11-08 09:51:58,929 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 58 transitions. Word has length 63 [2024-11-08 09:51:58,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:51:58,929 INFO L471 AbstractCegarLoop]: Abstraction has 52 states and 58 transitions. [2024-11-08 09:51:58,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.071428571428571) internal successors, (57), 14 states have internal predecessors, (57), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-08 09:51:58,930 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 58 transitions. [2024-11-08 09:51:58,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-08 09:51:58,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:51:58,931 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 6, 6, 6, 6, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:51:58,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-08 09:51:59,135 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:51:59,136 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:51:59,136 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:51:59,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1309932629, now seen corresponding path program 3 times [2024-11-08 09:51:59,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:51:59,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [983975294] [2024-11-08 09:51:59,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:51:59,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:51:59,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:59,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-08 09:51:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:59,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-08 09:51:59,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:59,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-08 09:51:59,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:51:59,481 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-08 09:51:59,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:51:59,481 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [983975294] [2024-11-08 09:51:59,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [983975294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:51:59,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1096628140] [2024-11-08 09:51:59,482 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 09:51:59,482 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:51:59,482 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:51:59,484 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) [2024-11-08 09:51:59,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-08 09:51:59,589 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-08 09:51:59,589 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:51:59,590 INFO L255 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 09:51:59,593 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:51:59,647 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-08 09:51:59,649 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:51:59,717 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 48 proven. 6 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-08 09:51:59,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1096628140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:51:59,717 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:51:59,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2024-11-08 09:51:59,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586503770] [2024-11-08 09:51:59,718 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:51:59,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-08 09:51:59,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:51:59,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-08 09:51:59,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-08 09:51:59,720 INFO L87 Difference]: Start difference. First operand 52 states and 58 transitions. Second operand has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 09:51:59,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:51:59,815 INFO L93 Difference]: Finished difference Result 100 states and 123 transitions. [2024-11-08 09:51:59,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-08 09:51:59,816 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 77 [2024-11-08 09:51:59,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:51:59,817 INFO L225 Difference]: With dead ends: 100 [2024-11-08 09:51:59,817 INFO L226 Difference]: Without dead ends: 71 [2024-11-08 09:51:59,818 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 154 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-08 09:51:59,818 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 17 mSDsluCounter, 161 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:51:59,819 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 186 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:51:59,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-08 09:51:59,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 70. [2024-11-08 09:51:59,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 65 states have internal predecessors, (74), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:51:59,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 80 transitions. [2024-11-08 09:51:59,825 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 80 transitions. Word has length 77 [2024-11-08 09:51:59,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:51:59,826 INFO L471 AbstractCegarLoop]: Abstraction has 70 states and 80 transitions. [2024-11-08 09:51:59,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.8947368421052633) internal successors, (74), 19 states have internal predecessors, (74), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 09:51:59,826 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 80 transitions. [2024-11-08 09:51:59,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-08 09:51:59,828 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:51:59,828 INFO L215 NwaCegarLoop]: trace histogram [18, 18, 18, 18, 11, 11, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:51:59,845 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-08 09:52:00,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:52:00,029 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:52:00,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:52:00,030 INFO L85 PathProgramCache]: Analyzing trace with hash -906758027, now seen corresponding path program 4 times [2024-11-08 09:52:00,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:52:00,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1921543093] [2024-11-08 09:52:00,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:52:00,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:52:00,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:00,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-08 09:52:00,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:00,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-08 09:52:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:00,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-08 09:52:00,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:00,400 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-08 09:52:00,403 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:52:00,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1921543093] [2024-11-08 09:52:00,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1921543093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:52:00,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082216397] [2024-11-08 09:52:00,403 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 09:52:00,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:52:00,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:52:00,405 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) [2024-11-08 09:52:00,406 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-08 09:52:00,544 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 09:52:00,544 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:52:00,546 INFO L255 TraceCheckSpWp]: Trace formula consists of 453 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-08 09:52:00,550 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:52:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-08 09:52:00,600 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:52:00,865 INFO L134 CoverageAnalysis]: Checked inductivity of 806 backedges. 0 proven. 121 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-08 09:52:00,866 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082216397] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:52:00,866 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:52:00,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 27 [2024-11-08 09:52:00,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166609497] [2024-11-08 09:52:00,866 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:52:00,867 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-08 09:52:00,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:52:00,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-08 09:52:00,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2024-11-08 09:52:00,870 INFO L87 Difference]: Start difference. First operand 70 states and 80 transitions. Second operand has 27 states, 27 states have (on average 2.888888888888889) internal successors, (78), 27 states have internal predecessors, (78), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 09:52:00,938 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:52:00,939 INFO L93 Difference]: Finished difference Result 141 states and 173 transitions. [2024-11-08 09:52:00,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-08 09:52:00,939 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 2.888888888888889) internal successors, (78), 27 states have internal predecessors, (78), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 127 [2024-11-08 09:52:00,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:52:00,940 INFO L225 Difference]: With dead ends: 141 [2024-11-08 09:52:00,940 INFO L226 Difference]: Without dead ends: 96 [2024-11-08 09:52:00,941 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 272 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=351, Invalid=351, Unknown=0, NotChecked=0, Total=702 [2024-11-08 09:52:00,942 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 78 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:52:00,942 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 78 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:52:00,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-11-08 09:52:00,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-11-08 09:52:00,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 91 states have (on average 1.098901098901099) internal successors, (100), 91 states have internal predecessors, (100), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:52:00,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 106 transitions. [2024-11-08 09:52:00,951 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 106 transitions. Word has length 127 [2024-11-08 09:52:00,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:52:00,951 INFO L471 AbstractCegarLoop]: Abstraction has 96 states and 106 transitions. [2024-11-08 09:52:00,951 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 2.888888888888889) internal successors, (78), 27 states have internal predecessors, (78), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 09:52:00,951 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 106 transitions. [2024-11-08 09:52:00,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-08 09:52:00,953 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:52:00,953 INFO L215 NwaCegarLoop]: trace histogram [24, 24, 18, 18, 18, 18, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:52:00,971 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-08 09:52:01,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:52:01,154 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:52:01,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:52:01,155 INFO L85 PathProgramCache]: Analyzing trace with hash -757608005, now seen corresponding path program 5 times [2024-11-08 09:52:01,155 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:52:01,155 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [884150266] [2024-11-08 09:52:01,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:52:01,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:52:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:02,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-08 09:52:02,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:02,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-08 09:52:02,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:02,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-08 09:52:02,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:02,063 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 0 proven. 576 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2024-11-08 09:52:02,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:52:02,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [884150266] [2024-11-08 09:52:02,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [884150266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:52:02,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716902676] [2024-11-08 09:52:02,063 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 09:52:02,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:52:02,064 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:52:02,066 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) [2024-11-08 09:52:02,067 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-08 09:52:03,267 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 24 check-sat command(s) [2024-11-08 09:52:03,267 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:52:03,272 INFO L255 TraceCheckSpWp]: Trace formula consists of 513 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 09:52:03,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:52:03,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 316 proven. 66 refuted. 0 times theorem prover too weak. 879 trivial. 0 not checked. [2024-11-08 09:52:03,446 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:52:03,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1261 backedges. 0 proven. 386 refuted. 0 times theorem prover too weak. 875 trivial. 0 not checked. [2024-11-08 09:52:03,658 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716902676] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:52:03,658 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:52:03,658 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 9, 9] total 41 [2024-11-08 09:52:03,659 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403320379] [2024-11-08 09:52:03,659 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:52:03,659 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-08 09:52:03,659 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:52:03,660 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-08 09:52:03,661 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=470, Invalid=1170, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 09:52:03,662 INFO L87 Difference]: Start difference. First operand 96 states and 106 transitions. Second operand has 41 states, 41 states have (on average 3.268292682926829) internal successors, (134), 41 states have internal predecessors, (134), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 09:52:03,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:52:03,806 INFO L93 Difference]: Finished difference Result 176 states and 215 transitions. [2024-11-08 09:52:03,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-08 09:52:03,807 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 41 states have (on average 3.268292682926829) internal successors, (134), 41 states have internal predecessors, (134), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 153 [2024-11-08 09:52:03,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:52:03,809 INFO L225 Difference]: With dead ends: 176 [2024-11-08 09:52:03,809 INFO L226 Difference]: Without dead ends: 131 [2024-11-08 09:52:03,810 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 337 GetRequests, 298 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 336 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=470, Invalid=1170, Unknown=0, NotChecked=0, Total=1640 [2024-11-08 09:52:03,812 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 50 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 126 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 126 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:52:03,812 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 203 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:52:03,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-11-08 09:52:03,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 130. [2024-11-08 09:52:03,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 125 states have (on average 1.136) internal successors, (142), 125 states have internal predecessors, (142), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:52:03,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 148 transitions. [2024-11-08 09:52:03,830 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 148 transitions. Word has length 153 [2024-11-08 09:52:03,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:52:03,831 INFO L471 AbstractCegarLoop]: Abstraction has 130 states and 148 transitions. [2024-11-08 09:52:03,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.268292682926829) internal successors, (134), 41 states have internal predecessors, (134), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 09:52:03,831 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 148 transitions. [2024-11-08 09:52:03,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 252 [2024-11-08 09:52:03,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:52:03,837 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 42, 25, 25, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:52:03,858 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-08 09:52:04,038 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,SelfDestructingSolverStorable8 [2024-11-08 09:52:04,038 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:52:04,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:52:04,039 INFO L85 PathProgramCache]: Analyzing trace with hash 1992150769, now seen corresponding path program 6 times [2024-11-08 09:52:04,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:52:04,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062826567] [2024-11-08 09:52:04,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:52:04,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:52:04,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:05,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-08 09:52:05,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:05,054 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-11-08 09:52:05,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:05,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-11-08 09:52:05,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:05,104 INFO L134 CoverageAnalysis]: Checked inductivity of 4214 backedges. 0 proven. 625 refuted. 0 times theorem prover too weak. 3589 trivial. 0 not checked. [2024-11-08 09:52:05,105 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:52:05,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062826567] [2024-11-08 09:52:05,105 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1062826567] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:52:05,105 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1949898208] [2024-11-08 09:52:05,105 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-08 09:52:05,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:52:05,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:52:05,107 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) [2024-11-08 09:52:05,109 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-08 09:52:05,271 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-08 09:52:05,271 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:52:05,273 INFO L255 TraceCheckSpWp]: Trace formula consists of 229 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-08 09:52:05,276 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:52:05,335 INFO L134 CoverageAnalysis]: Checked inductivity of 4214 backedges. 1634 proven. 4 refuted. 0 times theorem prover too weak. 2576 trivial. 0 not checked. [2024-11-08 09:52:05,335 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:52:05,418 INFO L134 CoverageAnalysis]: Checked inductivity of 4214 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4210 trivial. 0 not checked. [2024-11-08 09:52:05,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1949898208] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:52:05,418 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:52:05,418 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 5, 5] total 34 [2024-11-08 09:52:05,418 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339388134] [2024-11-08 09:52:05,418 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:52:05,419 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 09:52:05,419 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:52:05,420 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 09:52:05,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=405, Invalid=717, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 09:52:05,421 INFO L87 Difference]: Start difference. First operand 130 states and 148 transitions. Second operand has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 09:52:05,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:52:05,528 INFO L93 Difference]: Finished difference Result 218 states and 258 transitions. [2024-11-08 09:52:05,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-08 09:52:05,529 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 251 [2024-11-08 09:52:05,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:52:05,530 INFO L225 Difference]: With dead ends: 218 [2024-11-08 09:52:05,530 INFO L226 Difference]: Without dead ends: 141 [2024-11-08 09:52:05,531 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 502 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=405, Invalid=717, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 09:52:05,532 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 3 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 93 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 162 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 93 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:52:05,532 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 162 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 93 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:52:05,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2024-11-08 09:52:05,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 140. [2024-11-08 09:52:05,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 135 states have (on average 1.125925925925926) internal successors, (152), 135 states have internal predecessors, (152), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:52:05,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 158 transitions. [2024-11-08 09:52:05,540 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 158 transitions. Word has length 251 [2024-11-08 09:52:05,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:52:05,541 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 158 transitions. [2024-11-08 09:52:05,541 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.8529411764705883) internal successors, (97), 34 states have internal predecessors, (97), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 09:52:05,541 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 158 transitions. [2024-11-08 09:52:05,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 262 [2024-11-08 09:52:05,543 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:52:05,544 INFO L215 NwaCegarLoop]: trace histogram [42, 42, 42, 42, 26, 26, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:52:05,561 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-08 09:52:05,749 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,SelfDestructingSolverStorable9 [2024-11-08 09:52:05,750 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:52:05,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:52:05,750 INFO L85 PathProgramCache]: Analyzing trace with hash 942883655, now seen corresponding path program 7 times [2024-11-08 09:52:05,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:52:05,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123635082] [2024-11-08 09:52:05,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:52:05,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:52:05,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:06,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-08 09:52:06,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:06,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-11-08 09:52:06,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:06,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-11-08 09:52:06,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:06,797 INFO L134 CoverageAnalysis]: Checked inductivity of 4297 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 3621 trivial. 0 not checked. [2024-11-08 09:52:06,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:52:06,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123635082] [2024-11-08 09:52:06,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123635082] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:52:06,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676253942] [2024-11-08 09:52:06,798 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-08 09:52:06,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:52:06,799 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:52:06,800 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) [2024-11-08 09:52:06,802 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-08 09:52:07,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:07,054 INFO L255 TraceCheckSpWp]: Trace formula consists of 904 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-08 09:52:07,059 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:52:07,143 INFO L134 CoverageAnalysis]: Checked inductivity of 4297 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 3621 trivial. 0 not checked. [2024-11-08 09:52:07,143 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:52:08,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4297 backedges. 0 proven. 676 refuted. 0 times theorem prover too weak. 3621 trivial. 0 not checked. [2024-11-08 09:52:08,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676253942] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:52:08,069 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:52:08,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 29] total 57 [2024-11-08 09:52:08,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [466250251] [2024-11-08 09:52:08,069 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:52:08,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2024-11-08 09:52:08,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:52:08,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2024-11-08 09:52:08,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2024-11-08 09:52:08,073 INFO L87 Difference]: Start difference. First operand 140 states and 158 transitions. Second operand has 57 states, 57 states have (on average 2.4210526315789473) internal successors, (138), 57 states have internal predecessors, (138), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 09:52:08,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:52:08,228 INFO L93 Difference]: Finished difference Result 281 states and 344 transitions. [2024-11-08 09:52:08,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 56 states. [2024-11-08 09:52:08,229 INFO L78 Accepts]: Start accepts. Automaton has has 57 states, 57 states have (on average 2.4210526315789473) internal successors, (138), 57 states have internal predecessors, (138), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 261 [2024-11-08 09:52:08,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:52:08,231 INFO L225 Difference]: With dead ends: 281 [2024-11-08 09:52:08,233 INFO L226 Difference]: Without dead ends: 196 [2024-11-08 09:52:08,235 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 555 GetRequests, 500 SyntacticMatches, 0 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=1596, Invalid=1596, Unknown=0, NotChecked=0, Total=3192 [2024-11-08 09:52:08,235 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 2 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 178 SdHoareTripleChecker+Invalid, 123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:52:08,236 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 178 Invalid, 123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:52:08,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2024-11-08 09:52:08,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2024-11-08 09:52:08,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 191 states have (on average 1.0890052356020943) internal successors, (208), 191 states have internal predecessors, (208), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:52:08,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 214 transitions. [2024-11-08 09:52:08,246 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 214 transitions. Word has length 261 [2024-11-08 09:52:08,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:52:08,246 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 214 transitions. [2024-11-08 09:52:08,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 2.4210526315789473) internal successors, (138), 57 states have internal predecessors, (138), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 09:52:08,247 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 214 transitions. [2024-11-08 09:52:08,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-08 09:52:08,249 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:52:08,250 INFO L215 NwaCegarLoop]: trace histogram [54, 54, 42, 42, 42, 42, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:52:08,268 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-08 09:52:08,450 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,SelfDestructingSolverStorable10 [2024-11-08 09:52:08,450 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:52:08,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:52:08,451 INFO L85 PathProgramCache]: Analyzing trace with hash -1925687665, now seen corresponding path program 8 times [2024-11-08 09:52:08,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:52:08,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [536363961] [2024-11-08 09:52:08,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:52:08,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:52:08,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:11,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-08 09:52:11,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:11,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-11-08 09:52:11,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:11,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 252 [2024-11-08 09:52:11,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:11,083 INFO L134 CoverageAnalysis]: Checked inductivity of 6537 backedges. 0 proven. 2916 refuted. 0 times theorem prover too weak. 3621 trivial. 0 not checked. [2024-11-08 09:52:11,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:52:11,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [536363961] [2024-11-08 09:52:11,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [536363961] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:52:11,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1529842276] [2024-11-08 09:52:11,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-08 09:52:11,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:52:11,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:52:11,086 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 09:52:11,087 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-08 09:52:11,391 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-08 09:52:11,392 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:52:11,398 INFO L255 TraceCheckSpWp]: Trace formula consists of 1156 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-11-08 09:52:11,404 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:52:11,585 INFO L134 CoverageAnalysis]: Checked inductivity of 6537 backedges. 0 proven. 2916 refuted. 0 times theorem prover too weak. 3621 trivial. 0 not checked. [2024-11-08 09:52:11,586 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:52:13,084 INFO L134 CoverageAnalysis]: Checked inductivity of 6537 backedges. 0 proven. 2916 refuted. 0 times theorem prover too weak. 3621 trivial. 0 not checked. [2024-11-08 09:52:13,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1529842276] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:52:13,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:52:13,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [57, 57, 57] total 63 [2024-11-08 09:52:13,085 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273096013] [2024-11-08 09:52:13,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:52:13,086 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-11-08 09:52:13,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:52:13,088 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-11-08 09:52:13,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2024-11-08 09:52:13,090 INFO L87 Difference]: Start difference. First operand 196 states and 214 transitions. Second operand has 63 states, 63 states have (on average 2.4126984126984126) internal successors, (152), 63 states have internal predecessors, (152), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 09:52:13,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:52:13,259 INFO L93 Difference]: Finished difference Result 293 states and 334 transitions. [2024-11-08 09:52:13,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-08 09:52:13,260 INFO L78 Accepts]: Start accepts. Automaton has has 63 states, 63 states have (on average 2.4126984126984126) internal successors, (152), 63 states have internal predecessors, (152), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 317 [2024-11-08 09:52:13,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:52:13,263 INFO L225 Difference]: With dead ends: 293 [2024-11-08 09:52:13,263 INFO L226 Difference]: Without dead ends: 208 [2024-11-08 09:52:13,265 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 584 SyntacticMatches, 50 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1691 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=1953, Invalid=1953, Unknown=0, NotChecked=0, Total=3906 [2024-11-08 09:52:13,265 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 1 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 203 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:52:13,265 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 203 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:52:13,266 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2024-11-08 09:52:13,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2024-11-08 09:52:13,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 203 states have (on average 1.083743842364532) internal successors, (220), 203 states have internal predecessors, (220), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:52:13,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 226 transitions. [2024-11-08 09:52:13,280 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 226 transitions. Word has length 317 [2024-11-08 09:52:13,280 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:52:13,280 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 226 transitions. [2024-11-08 09:52:13,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 2.4126984126984126) internal successors, (152), 63 states have internal predecessors, (152), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-08 09:52:13,281 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 226 transitions. [2024-11-08 09:52:13,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-08 09:52:13,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:52:13,286 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 42, 42, 42, 42, 6, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:52:13,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-08 09:52:13,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-08 09:52:13,490 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:52:13,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:52:13,490 INFO L85 PathProgramCache]: Analyzing trace with hash 133182019, now seen corresponding path program 9 times [2024-11-08 09:52:13,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:52:13,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [730965056] [2024-11-08 09:52:13,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:52:13,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:52:13,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:13,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 09:52:13,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:14,178 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2024-11-08 09:52:14,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:14,192 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-11-08 09:52:14,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:14,215 INFO L134 CoverageAnalysis]: Checked inductivity of 7221 backedges. 0 proven. 2010 refuted. 0 times theorem prover too weak. 5211 trivial. 0 not checked. [2024-11-08 09:52:14,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:52:14,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [730965056] [2024-11-08 09:52:14,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [730965056] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:52:14,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536511172] [2024-11-08 09:52:14,218 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-08 09:52:14,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:52:14,218 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:52:14,220 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 09:52:14,221 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-08 09:52:14,495 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-08 09:52:14,495 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:52:14,498 INFO L255 TraceCheckSpWp]: Trace formula consists of 353 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-08 09:52:14,502 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:52:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 7221 backedges. 1634 proven. 36 refuted. 0 times theorem prover too weak. 5551 trivial. 0 not checked. [2024-11-08 09:52:14,599 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:52:14,746 INFO L134 CoverageAnalysis]: Checked inductivity of 7221 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 7185 trivial. 0 not checked. [2024-11-08 09:52:14,746 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536511172] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:52:14,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:52:14,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 9, 9] total 31 [2024-11-08 09:52:14,747 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1515572844] [2024-11-08 09:52:14,747 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:52:14,748 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-08 09:52:14,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:52:14,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-08 09:52:14,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2024-11-08 09:52:14,750 INFO L87 Difference]: Start difference. First operand 208 states and 226 transitions. Second operand has 31 states, 31 states have (on average 3.806451612903226) internal successors, (118), 31 states have internal predecessors, (118), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 09:52:14,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:52:14,848 INFO L93 Difference]: Finished difference Result 314 states and 362 transitions. [2024-11-08 09:52:14,848 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-08 09:52:14,849 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 3.806451612903226) internal successors, (118), 31 states have internal predecessors, (118), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 329 [2024-11-08 09:52:14,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:52:14,850 INFO L225 Difference]: With dead ends: 314 [2024-11-08 09:52:14,850 INFO L226 Difference]: Without dead ends: 231 [2024-11-08 09:52:14,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 679 GetRequests, 650 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2024-11-08 09:52:14,851 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 43 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:52:14,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 223 Invalid, 112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:52:14,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 231 states. [2024-11-08 09:52:14,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 231 to 228. [2024-11-08 09:52:14,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 228 states, 223 states have (on average 1.0807174887892377) internal successors, (241), 223 states have internal predecessors, (241), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:52:14,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 247 transitions. [2024-11-08 09:52:14,863 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 247 transitions. Word has length 329 [2024-11-08 09:52:14,864 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:52:14,864 INFO L471 AbstractCegarLoop]: Abstraction has 228 states and 247 transitions. [2024-11-08 09:52:14,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.806451612903226) internal successors, (118), 31 states have internal predecessors, (118), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-08 09:52:14,864 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 247 transitions. [2024-11-08 09:52:14,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-08 09:52:14,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:52:14,871 INFO L215 NwaCegarLoop]: trace histogram [60, 60, 45, 45, 45, 45, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:52:14,893 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-08 09:52:15,072 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-08 09:52:15,072 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:52:15,072 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:52:15,072 INFO L85 PathProgramCache]: Analyzing trace with hash 939195982, now seen corresponding path program 10 times [2024-11-08 09:52:15,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:52:15,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136486605] [2024-11-08 09:52:15,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:52:15,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:52:15,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:15,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 09:52:15,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:15,778 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-11-08 09:52:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:15,793 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2024-11-08 09:52:15,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:15,810 INFO L134 CoverageAnalysis]: Checked inductivity of 7906 backedges. 0 proven. 2303 refuted. 0 times theorem prover too weak. 5603 trivial. 0 not checked. [2024-11-08 09:52:15,810 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:52:15,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136486605] [2024-11-08 09:52:15,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136486605] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:52:15,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [161729644] [2024-11-08 09:52:15,811 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-08 09:52:15,811 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:52:15,811 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:52:15,813 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 09:52:15,814 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-08 09:52:16,177 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-08 09:52:16,177 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-08 09:52:16,182 INFO L255 TraceCheckSpWp]: Trace formula consists of 1302 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-08 09:52:16,187 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-08 09:52:16,262 INFO L134 CoverageAnalysis]: Checked inductivity of 7906 backedges. 1864 proven. 435 refuted. 0 times theorem prover too weak. 5607 trivial. 0 not checked. [2024-11-08 09:52:16,262 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-08 09:52:16,622 INFO L134 CoverageAnalysis]: Checked inductivity of 7906 backedges. 0 proven. 2303 refuted. 0 times theorem prover too weak. 5603 trivial. 0 not checked. [2024-11-08 09:52:16,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [161729644] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-08 09:52:16,623 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-08 09:52:16,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 18, 18] total 34 [2024-11-08 09:52:16,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641614014] [2024-11-08 09:52:16,623 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-08 09:52:16,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-11-08 09:52:16,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-08 09:52:16,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-11-08 09:52:16,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 09:52:16,625 INFO L87 Difference]: Start difference. First operand 228 states and 247 transitions. Second operand has 34 states, 34 states have (on average 4.5588235294117645) internal successors, (155), 34 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 09:52:16,722 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-08 09:52:16,722 INFO L93 Difference]: Finished difference Result 399 states and 472 transitions. [2024-11-08 09:52:16,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2024-11-08 09:52:16,724 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 4.5588235294117645) internal successors, (155), 34 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 357 [2024-11-08 09:52:16,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-08 09:52:16,726 INFO L225 Difference]: With dead ends: 399 [2024-11-08 09:52:16,726 INFO L226 Difference]: Without dead ends: 296 [2024-11-08 09:52:16,727 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 736 GetRequests, 704 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=561, Invalid=561, Unknown=0, NotChecked=0, Total=1122 [2024-11-08 09:52:16,727 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 93 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 103 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-08 09:52:16,727 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 181 Invalid, 103 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-08 09:52:16,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-08 09:52:16,748 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2024-11-08 09:52:16,749 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 291 states have (on average 1.120274914089347) internal successors, (326), 291 states have internal predecessors, (326), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-08 09:52:16,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 332 transitions. [2024-11-08 09:52:16,751 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 332 transitions. Word has length 357 [2024-11-08 09:52:16,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-08 09:52:16,751 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 332 transitions. [2024-11-08 09:52:16,751 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 4.5588235294117645) internal successors, (155), 34 states have internal predecessors, (155), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-08 09:52:16,752 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 332 transitions. [2024-11-08 09:52:16,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 562 [2024-11-08 09:52:16,757 INFO L207 NwaCegarLoop]: Found error trace [2024-11-08 09:52:16,758 INFO L215 NwaCegarLoop]: trace histogram [96, 96, 96, 96, 60, 60, 14, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-08 09:52:16,776 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-08 09:52:16,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-08 09:52:16,959 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-08 09:52:16,959 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-08 09:52:16,959 INFO L85 PathProgramCache]: Analyzing trace with hash 964869273, now seen corresponding path program 11 times [2024-11-08 09:52:16,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-08 09:52:16,959 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948818903] [2024-11-08 09:52:16,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-08 09:52:16,960 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-08 09:52:17,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:18,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-11-08 09:52:18,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:18,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-08 09:52:18,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:18,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 424 [2024-11-08 09:52:18,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-08 09:52:18,896 INFO L134 CoverageAnalysis]: Checked inductivity of 22339 backedges. 0 proven. 10344 refuted. 0 times theorem prover too weak. 11995 trivial. 0 not checked. [2024-11-08 09:52:18,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-08 09:52:18,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948818903] [2024-11-08 09:52:18,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948818903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-08 09:52:18,896 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [44948612] [2024-11-08 09:52:18,897 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-08 09:52:18,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-08 09:52:18,897 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-08 09:52:18,899 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-08 09:52:18,901 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process