./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Haystacks-17.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/Haystacks-17.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 9b64cc6095d5436dfbf5be50f666bc80b5fa4a542b4082c7beb316107bdb1f5d --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:24:35,556 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:24:35,624 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:24:35,633 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:24:35,634 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:24:35,664 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:24:35,665 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:24:35,666 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:24:35,666 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:24:35,668 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:24:35,669 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:24:35,669 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:24:35,670 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:24:35,674 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:24:35,675 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:24:35,675 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:24:35,675 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:24:35,675 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:24:35,675 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:24:35,676 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:24:35,676 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:24:35,676 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:24:35,677 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:24:35,677 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:24:35,677 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:24:35,677 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:24:35,677 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:24:35,678 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:24:35,678 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:24:35,678 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:24:35,678 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:24:35,679 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:24:35,679 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:24:35,679 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:24:35,679 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:24:35,680 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:24:35,680 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:24:35,680 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:24:35,680 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:24:35,681 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:24:35,681 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:24:35,681 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:24:35,682 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9b64cc6095d5436dfbf5be50f666bc80b5fa4a542b4082c7beb316107bdb1f5d [2024-11-18 15:24:35,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:24:35,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:24:35,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:24:35,990 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:24:35,991 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:24:35,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Haystacks-17.c [2024-11-18 15:24:37,410 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:24:37,821 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:24:37,823 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-17.c [2024-11-18 15:24:37,849 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab56c7ff4/ef176141fa854f13acc4c6b903710b30/FLAG87457566e [2024-11-18 15:24:37,866 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab56c7ff4/ef176141fa854f13acc4c6b903710b30 [2024-11-18 15:24:37,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:24:37,871 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:24:37,872 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:24:37,872 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:24:37,877 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:24:37,878 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:24:37" (1/1) ... [2024-11-18 15:24:37,880 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@523a5771 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:37, skipping insertion in model container [2024-11-18 15:24:37,880 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:24:37" (1/1) ... [2024-11-18 15:24:37,955 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:24:38,502 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/Haystacks-17.c[124976,124989] [2024-11-18 15:24:38,525 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:24:38,535 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:24:38,672 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/Haystacks-17.c[124976,124989] [2024-11-18 15:24:38,689 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:24:38,704 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:24:38,705 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38 WrapperNode [2024-11-18 15:24:38,705 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:24:38,706 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:24:38,706 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:24:38,706 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:24:38,713 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:38,792 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:38,907 INFO L138 Inliner]: procedures = 13, calls = 3169, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 4623 [2024-11-18 15:24:38,908 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:24:38,908 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:24:38,909 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:24:38,909 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:24:38,919 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:38,920 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:38,936 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:38,994 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 15:24:38,994 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:38,994 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:39,036 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:39,041 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:39,060 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:39,076 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:39,098 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:24:39,100 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:24:39,100 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:24:39,100 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:24:39,101 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (1/1) ... [2024-11-18 15:24:39,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:24:39,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:24:39,137 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 15:24:39,144 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 15:24:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:24:39,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:24:39,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:24:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:24:39,236 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-18 15:24:39,236 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-18 15:24:39,479 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:24:39,482 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:24:55,335 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-18 15:24:55,335 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:24:55,398 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:24:55,399 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 15:24:55,399 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:24:55 BoogieIcfgContainer [2024-11-18 15:24:55,399 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:24:55,401 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:24:55,401 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:24:55,405 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:24:55,405 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:24:37" (1/3) ... [2024-11-18 15:24:55,405 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2938e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:24:55, skipping insertion in model container [2024-11-18 15:24:55,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38" (2/3) ... [2024-11-18 15:24:55,406 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2d2938e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:24:55, skipping insertion in model container [2024-11-18 15:24:55,406 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:24:55" (3/3) ... [2024-11-18 15:24:55,407 INFO L112 eAbstractionObserver]: Analyzing ICFG Haystacks-17.c [2024-11-18 15:24:55,422 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:24:55,423 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 15:24:55,584 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:24:55,591 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;@2fdfe9bd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:24:55,591 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 15:24:55,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 3462 states, 297 states have (on average 1.0067340067340067) internal successors, (299), 298 states have internal predecessors, (299), 3162 states have call successors, (3162), 1 states have call predecessors, (3162), 1 states have return successors, (3162), 3162 states have call predecessors, (3162), 3162 states have call successors, (3162) [2024-11-18 15:24:57,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16103 [2024-11-18 15:24:57,304 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:24:57,312 INFO L215 NwaCegarLoop]: trace histogram [3162, 3162, 3162, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-18 15:24:57,313 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:24:57,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:24:57,324 INFO L85 PathProgramCache]: Analyzing trace with hash 1190058368, now seen corresponding path program 1 times [2024-11-18 15:24:57,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:24:57,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121467188] [2024-11-18 15:24:57,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:24:57,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:24:58,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:25:25,210 INFO L134 CoverageAnalysis]: Checked inductivity of 19990164 backedges. 0 proven. 6322 refuted. 0 times theorem prover too weak. 19983842 trivial. 0 not checked. [2024-11-18 15:25:25,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:25:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121467188] [2024-11-18 15:25:25,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121467188] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:25:25,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1991987154] [2024-11-18 15:25:25,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:25:25,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:25:25,214 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:25:25,215 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 15:25:25,216 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 15:25:29,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:25:29,941 INFO L255 TraceCheckSpWp]: Trace formula consists of 29062 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 15:25:30,275 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:25:31,224 INFO L134 CoverageAnalysis]: Checked inductivity of 19990164 backedges. 6322 proven. 0 refuted. 0 times theorem prover too weak. 19983842 trivial. 0 not checked. [2024-11-18 15:25:31,224 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 15:25:31,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1991987154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:25:31,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 15:25:31,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 15:25:31,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776260033] [2024-11-18 15:25:31,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:25:31,251 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 15:25:31,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:25:31,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 15:25:31,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 15:25:31,314 INFO L87 Difference]: Start difference. First operand has 3462 states, 297 states have (on average 1.0067340067340067) internal successors, (299), 298 states have internal predecessors, (299), 3162 states have call successors, (3162), 1 states have call predecessors, (3162), 1 states have return successors, (3162), 3162 states have call predecessors, (3162), 3162 states have call successors, (3162) Second operand has 2 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 2 states have call successors, (3162), 2 states have call predecessors, (3162), 1 states have return successors, (3162), 1 states have call predecessors, (3162), 2 states have call successors, (3162) [2024-11-18 15:25:31,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:25:31,651 INFO L93 Difference]: Finished difference Result 6918 states and 16402 transitions. [2024-11-18 15:25:31,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 15:25:31,659 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 2 states have call successors, (3162), 2 states have call predecessors, (3162), 1 states have return successors, (3162), 1 states have call predecessors, (3162), 2 states have call successors, (3162) Word has length 16102 [2024-11-18 15:25:31,660 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:25:31,731 INFO L225 Difference]: With dead ends: 6918 [2024-11-18 15:25:31,732 INFO L226 Difference]: Without dead ends: 3459 [2024-11-18 15:25:31,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16103 GetRequests, 16103 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 15:25:31,793 INFO L432 NwaCegarLoop]: 6619 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, 6619 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 15:25:31,794 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6619 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:25:31,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3459 states. [2024-11-18 15:25:36,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3459 to 3459. [2024-11-18 15:25:36,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3459 states, 295 states have (on average 1.0) internal successors, (295), 295 states have internal predecessors, (295), 3162 states have call successors, (3162), 1 states have call predecessors, (3162), 1 states have return successors, (3162), 3162 states have call predecessors, (3162), 3162 states have call successors, (3162) [2024-11-18 15:25:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3459 states to 3459 states and 6619 transitions. [2024-11-18 15:25:36,124 INFO L78 Accepts]: Start accepts. Automaton has 3459 states and 6619 transitions. Word has length 16102 [2024-11-18 15:25:36,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:25:36,129 INFO L471 AbstractCegarLoop]: Abstraction has 3459 states and 6619 transitions. [2024-11-18 15:25:36,137 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 148.5) internal successors, (297), 2 states have internal predecessors, (297), 2 states have call successors, (3162), 2 states have call predecessors, (3162), 1 states have return successors, (3162), 1 states have call predecessors, (3162), 2 states have call successors, (3162) [2024-11-18 15:25:36,138 INFO L276 IsEmpty]: Start isEmpty. Operand 3459 states and 6619 transitions. [2024-11-18 15:25:37,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16103 [2024-11-18 15:25:37,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:25:37,317 INFO L215 NwaCegarLoop]: trace histogram [3162, 3162, 3162, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-18 15:25:37,384 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 15:25:37,518 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 15:25:37,519 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:25:37,520 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:25:37,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1019730880, now seen corresponding path program 1 times [2024-11-18 15:25:37,525 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:25:37,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [162790411] [2024-11-18 15:25:37,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:25:37,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms