./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Dubois-095.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/xcsp/Dubois-095.c -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 e238c288867a9be4c6a7e11a8e08267ab29e2230e0f2e873e7e484db35df0c2f --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:23:18,335 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:23:18,434 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:23:18,441 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:23:18,443 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:23:18,472 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:23:18,475 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:23:18,475 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:23:18,476 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:23:18,477 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:23:18,478 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:23:18,479 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:23:18,479 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:23:18,479 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:23:18,481 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:23:18,482 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:23:18,482 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:23:18,482 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:23:18,482 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:23:18,483 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:23:18,483 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:23:18,483 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:23:18,485 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:23:18,485 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:23:18,485 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:23:18,485 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:23:18,486 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:23:18,486 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:23:18,486 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:23:18,486 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:23:18,487 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:23:18,487 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:23:18,487 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:23:18,487 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:23:18,487 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:23:18,488 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:23:18,488 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:23:18,491 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:23:18,492 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:23:18,492 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:23:18,492 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:23:18,493 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:23:18,493 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e238c288867a9be4c6a7e11a8e08267ab29e2230e0f2e873e7e484db35df0c2f [2024-11-18 15:23:18,724 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:23:18,749 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:23:18,752 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:23:18,753 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:23:18,754 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:23:18,755 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Dubois-095.c [2024-11-18 15:23:20,214 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:23:20,554 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:23:20,556 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Dubois-095.c [2024-11-18 15:23:20,581 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20c6e0a4e/01f4550e246d4f9eb0c9078f811e5446/FLAG67fcbcc0a [2024-11-18 15:23:20,598 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/20c6e0a4e/01f4550e246d4f9eb0c9078f811e5446 [2024-11-18 15:23:20,602 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:23:20,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:23:20,607 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:23:20,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:23:20,613 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:23:20,614 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:23:20" (1/1) ... [2024-11-18 15:23:20,615 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@176f1aeb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:20, skipping insertion in model container [2024-11-18 15:23:20,642 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:23:20" (1/1) ... [2024-11-18 15:23:20,728 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:23:21,304 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/xcsp/Dubois-095.c[67920,67933] [2024-11-18 15:23:21,352 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:23:21,369 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:23:21,686 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/xcsp/Dubois-095.c[67920,67933] [2024-11-18 15:23:21,737 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:23:21,755 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:23:21,755 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21 WrapperNode [2024-11-18 15:23:21,755 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:23:21,756 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:23:21,757 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:23:21,757 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:23:21,763 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:21,876 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:22,921 INFO L138 Inliner]: procedures = 13, calls = 767, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 18921 [2024-11-18 15:23:22,922 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:23:22,923 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:23:22,923 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:23:22,923 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:23:22,933 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:22,934 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:23,140 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:23,309 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 15:23:23,309 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:23,309 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:23,703 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:23,779 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:23,842 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:23,894 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:24,121 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:23:24,122 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:23:24,122 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:23:24,122 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:23:24,123 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (1/1) ... [2024-11-18 15:23:24,128 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:23:24,137 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:23:24,151 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) [2024-11-18 15:23:24,153 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 [2024-11-18 15:23:24,196 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:23:24,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:23:24,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:23:24,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:23:24,197 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-18 15:23:24,197 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-18 15:23:24,709 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:23:24,712 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:23:53,127 INFO L? ?]: Removed 6560 outVars from TransFormulas that were not future-live. [2024-11-18 15:23:53,127 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:23:53,219 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:23:53,219 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 15:23:53,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:23:53 BoogieIcfgContainer [2024-11-18 15:23:53,220 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:23:53,223 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:23:53,223 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:23:53,226 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:23:53,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:23:20" (1/3) ... [2024-11-18 15:23:53,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76932dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:23:53, skipping insertion in model container [2024-11-18 15:23:53,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:23:21" (2/3) ... [2024-11-18 15:23:53,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76932dc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:23:53, skipping insertion in model container [2024-11-18 15:23:53,229 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:23:53" (3/3) ... [2024-11-18 15:23:53,230 INFO L112 eAbstractionObserver]: Analyzing ICFG Dubois-095.c [2024-11-18 15:23:53,247 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:23:53,247 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 15:23:53,438 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:23:53,444 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;@3553e5f8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:23:53,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 15:23:53,472 INFO L276 IsEmpty]: Start isEmpty. Operand has 7516 states, 6753 states have (on average 1.619280319857841) internal successors, (10935), 6754 states have internal predecessors, (10935), 760 states have call successors, (760), 1 states have call predecessors, (760), 1 states have return successors, (760), 760 states have call predecessors, (760), 760 states have call successors, (760) [2024-11-18 15:23:53,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6369 [2024-11-18 15:23:53,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:23:53,799 INFO L215 NwaCegarLoop]: trace histogram [760, 760, 760, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:23:53,800 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:23:53,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:23:53,807 INFO L85 PathProgramCache]: Analyzing trace with hash 894710894, now seen corresponding path program 1 times [2024-11-18 15:23:53,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:23:53,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439652295] [2024-11-18 15:23:53,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:23:53,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:23:54,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:24:00,171 INFO L134 CoverageAnalysis]: Checked inductivity of 1153680 backedges. 0 proven. 1518 refuted. 0 times theorem prover too weak. 1152162 trivial. 0 not checked. [2024-11-18 15:24:00,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:24:00,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439652295] [2024-11-18 15:24:00,173 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439652295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:24:00,174 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [127271557] [2024-11-18 15:24:00,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:24:00,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:24:00,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:24:00,178 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) [2024-11-18 15:24:00,179 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 15:24:02,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:24:02,824 INFO L255 TraceCheckSpWp]: Trace formula consists of 13896 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 15:24:02,975 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:24:03,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1153680 backedges. 1518 proven. 0 refuted. 0 times theorem prover too weak. 1152162 trivial. 0 not checked. [2024-11-18 15:24:03,486 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 15:24:03,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [127271557] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:24:03,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 15:24:03,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 15:24:03,490 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940277958] [2024-11-18 15:24:03,490 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:24:03,503 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 15:24:03,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:24:03,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 15:24:03,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 15:24:03,557 INFO L87 Difference]: Start difference. First operand has 7516 states, 6753 states have (on average 1.619280319857841) internal successors, (10935), 6754 states have internal predecessors, (10935), 760 states have call successors, (760), 1 states have call predecessors, (760), 1 states have return successors, (760), 760 states have call predecessors, (760), 760 states have call successors, (760) Second operand has 2 states, 2 states have (on average 1286.5) internal successors, (2573), 2 states have internal predecessors, (2573), 2 states have call successors, (760), 2 states have call predecessors, (760), 1 states have return successors, (760), 1 states have call predecessors, (760), 2 states have call successors, (760) [2024-11-18 15:24:03,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:24:03,877 INFO L93 Difference]: Finished difference Result 15026 states and 25664 transitions. [2024-11-18 15:24:03,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 15:24:03,882 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 1286.5) internal successors, (2573), 2 states have internal predecessors, (2573), 2 states have call successors, (760), 2 states have call predecessors, (760), 1 states have return successors, (760), 1 states have call predecessors, (760), 2 states have call successors, (760) Word has length 6368 [2024-11-18 15:24:03,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:24:03,938 INFO L225 Difference]: With dead ends: 15026 [2024-11-18 15:24:03,938 INFO L226 Difference]: Without dead ends: 7513 [2024-11-18 15:24:03,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6369 GetRequests, 6369 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 15:24:03,968 INFO L432 NwaCegarLoop]: 12451 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, 12451 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 [2024-11-18 15:24:03,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 12451 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:24:04,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7513 states. [2024-11-18 15:24:04,754 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7513 to 7513. [2024-11-18 15:24:04,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7513 states, 6751 states have (on average 1.6191675307361872) internal successors, (10931), 6751 states have internal predecessors, (10931), 760 states have call successors, (760), 1 states have call predecessors, (760), 1 states have return successors, (760), 760 states have call predecessors, (760), 760 states have call successors, (760) [2024-11-18 15:24:04,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7513 states to 7513 states and 12451 transitions. [2024-11-18 15:24:04,827 INFO L78 Accepts]: Start accepts. Automaton has 7513 states and 12451 transitions. Word has length 6368 [2024-11-18 15:24:04,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:24:04,830 INFO L471 AbstractCegarLoop]: Abstraction has 7513 states and 12451 transitions. [2024-11-18 15:24:04,832 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 1286.5) internal successors, (2573), 2 states have internal predecessors, (2573), 2 states have call successors, (760), 2 states have call predecessors, (760), 1 states have return successors, (760), 1 states have call predecessors, (760), 2 states have call successors, (760) [2024-11-18 15:24:04,833 INFO L276 IsEmpty]: Start isEmpty. Operand 7513 states and 12451 transitions. [2024-11-18 15:24:05,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6369 [2024-11-18 15:24:05,274 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:24:05,276 INFO L215 NwaCegarLoop]: trace histogram [760, 760, 760, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:24:05,307 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 15:24:05,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 15:24:05,478 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:24:05,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:24:05,481 INFO L85 PathProgramCache]: Analyzing trace with hash 573663598, now seen corresponding path program 1 times [2024-11-18 15:24:05,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:24:05,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869998214] [2024-11-18 15:24:05,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:24:05,483 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:24:06,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:24:18,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1153680 backedges. 1710 proven. 567 refuted. 0 times theorem prover too weak. 1151403 trivial. 0 not checked. [2024-11-18 15:24:18,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:24:18,127 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [869998214] [2024-11-18 15:24:18,128 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [869998214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:24:18,128 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [206010435] [2024-11-18 15:24:18,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:24:18,130 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:24:18,130 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:24:18,133 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) [2024-11-18 15:24:18,134 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-18 15:24:20,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:24:20,773 INFO L255 TraceCheckSpWp]: Trace formula consists of 13896 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-18 15:24:20,925 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:24:21,154 INFO L134 CoverageAnalysis]: Checked inductivity of 1153680 backedges. 2277 proven. 0 refuted. 0 times theorem prover too weak. 1151403 trivial. 0 not checked. [2024-11-18 15:24:21,155 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 15:24:21,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [206010435] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:24:21,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 15:24:21,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 8 [2024-11-18 15:24:21,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24406047] [2024-11-18 15:24:21,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:24:21,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-18 15:24:21,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:24:21,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-18 15:24:21,169 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:24:21,171 INFO L87 Difference]: Start difference. First operand 7513 states and 12451 transitions. Second operand has 6 states, 5 states have (on average 514.8) internal successors, (2574), 6 states have internal predecessors, (2574), 2 states have call successors, (760), 1 states have call predecessors, (760), 2 states have return successors, (760), 2 states have call predecessors, (760), 2 states have call successors, (760) [2024-11-18 15:24:24,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:24:24,991 INFO L93 Difference]: Finished difference Result 7525 states and 12465 transitions. [2024-11-18 15:24:24,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-18 15:24:24,993 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 514.8) internal successors, (2574), 6 states have internal predecessors, (2574), 2 states have call successors, (760), 1 states have call predecessors, (760), 2 states have return successors, (760), 2 states have call predecessors, (760), 2 states have call successors, (760) Word has length 6368 [2024-11-18 15:24:25,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:24:25,048 INFO L225 Difference]: With dead ends: 7525 [2024-11-18 15:24:25,049 INFO L226 Difference]: Without dead ends: 7515 [2024-11-18 15:24:25,058 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6373 GetRequests, 6367 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 15:24:25,059 INFO L432 NwaCegarLoop]: 11687 mSDtfsCounter, 1 mSDsluCounter, 45215 mSDsCounter, 0 mSdLazyCounter, 5349 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 56902 SdHoareTripleChecker+Invalid, 5350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 5349 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-18 15:24:25,060 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 56902 Invalid, 5350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 5349 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-18 15:24:25,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7515 states. [2024-11-18 15:24:25,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7515 to 7515. [2024-11-18 15:24:25,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7515 states, 6753 states have (on average 1.6189841551902857) internal successors, (10933), 6753 states have internal predecessors, (10933), 760 states have call successors, (760), 1 states have call predecessors, (760), 1 states have return successors, (760), 760 states have call predecessors, (760), 760 states have call successors, (760) [2024-11-18 15:24:25,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7515 states to 7515 states and 12453 transitions. [2024-11-18 15:24:25,581 INFO L78 Accepts]: Start accepts. Automaton has 7515 states and 12453 transitions. Word has length 6368 [2024-11-18 15:24:25,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:24:25,601 INFO L471 AbstractCegarLoop]: Abstraction has 7515 states and 12453 transitions. [2024-11-18 15:24:25,603 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 514.8) internal successors, (2574), 6 states have internal predecessors, (2574), 2 states have call successors, (760), 1 states have call predecessors, (760), 2 states have return successors, (760), 2 states have call predecessors, (760), 2 states have call successors, (760) [2024-11-18 15:24:25,604 INFO L276 IsEmpty]: Start isEmpty. Operand 7515 states and 12453 transitions. [2024-11-18 15:24:25,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6370 [2024-11-18 15:24:25,865 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:24:25,867 INFO L215 NwaCegarLoop]: trace histogram [760, 760, 760, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 15:24:25,902 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-18 15:24:26,067 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,SelfDestructingSolverStorable1 [2024-11-18 15:24:26,068 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:24:26,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:24:26,071 INFO L85 PathProgramCache]: Analyzing trace with hash 2128201547, now seen corresponding path program 1 times [2024-11-18 15:24:26,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:24:26,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652125382] [2024-11-18 15:24:26,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:24:26,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:24:26,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat