./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/xcsp/Haystacks-16.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-16.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 69674fa9bac4462fab44fafedf177d67851aa51f3860d6fe181d82fe0b856912 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 15:24:35,275 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 15:24:35,353 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 15:24:35,367 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 15:24:35,368 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 15:24:35,388 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 15:24:35,389 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 15:24:35,389 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 15:24:35,389 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 15:24:35,390 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 15:24:35,390 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 15:24:35,390 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 15:24:35,391 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 15:24:35,391 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 15:24:35,392 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 15:24:35,392 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 15:24:35,393 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 15:24:35,393 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 15:24:35,393 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 15:24:35,394 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 15:24:35,394 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 15:24:35,397 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 15:24:35,397 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 15:24:35,397 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 15:24:35,398 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 15:24:35,398 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 15:24:35,398 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 15:24:35,399 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 15:24:35,399 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 15:24:35,400 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 15:24:35,400 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 15:24:35,400 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 15:24:35,400 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:24:35,401 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 15:24:35,401 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 15:24:35,401 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 15:24:35,402 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 15:24:35,402 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 15:24:35,402 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 15:24:35,403 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 15:24:35,403 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 15:24:35,404 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 15:24:35,405 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 69674fa9bac4462fab44fafedf177d67851aa51f3860d6fe181d82fe0b856912 [2024-11-18 15:24:35,648 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 15:24:35,669 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 15:24:35,675 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 15:24:35,676 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 15:24:35,676 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 15:24:35,678 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/xcsp/Haystacks-16.c [2024-11-18 15:24:37,134 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 15:24:37,462 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 15:24:37,462 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/xcsp/Haystacks-16.c [2024-11-18 15:24:37,488 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f694658d8/b30ec28eb72b4233809d597e95503c65/FLAG91daaca20 [2024-11-18 15:24:37,698 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f694658d8/b30ec28eb72b4233809d597e95503c65 [2024-11-18 15:24:37,701 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 15:24:37,702 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 15:24:37,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 15:24:37,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 15:24:37,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 15:24:37,708 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:24:37" (1/1) ... [2024-11-18 15:24:37,709 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a45df10 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 15:24:37,709 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:24:37" (1/1) ... [2024-11-18 15:24:37,787 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 15:24:38,420 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-16.c[105300,105313] [2024-11-18 15:24:38,447 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:24:38,460 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 15:24:38,605 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-16.c[105300,105313] [2024-11-18 15:24:38,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 15:24:38,630 INFO L204 MainTranslator]: Completed translation [2024-11-18 15:24:38,630 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:24:38 WrapperNode [2024-11-18 15:24:38,630 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 15:24:38,632 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 15:24:38,632 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 15:24:38,632 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 15:24:38,639 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 15:24:38,689 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 15:24:38,804 INFO L138 Inliner]: procedures = 13, calls = 2679, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 3968 [2024-11-18 15:24:38,805 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 15:24:38,806 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 15:24:38,806 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 15:24:38,806 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 15:24:38,816 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 15:24:38,816 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 15:24:38,834 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 15:24:38,884 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 15:24:38,885 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 15:24:38,885 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 15:24:38,939 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 15:24:38,949 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 15:24:38,968 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 15:24:38,983 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 15:24:39,008 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 15:24:39,010 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 15:24:39,010 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 15:24:39,010 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 15:24:39,011 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 15:24:39,017 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 15:24:39,028 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:24:39,045 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 15:24:39,048 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 15:24:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 15:24:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 15:24:39,097 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 15:24:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 15:24:39,097 INFO L130 BoogieDeclarations]: Found specification of procedure assume [2024-11-18 15:24:39,098 INFO L138 BoogieDeclarations]: Found implementation of procedure assume [2024-11-18 15:24:39,274 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 15:24:39,276 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 15:24:51,153 INFO L? ?]: Removed 5 outVars from TransFormulas that were not future-live. [2024-11-18 15:24:51,158 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 15:24:51,229 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 15:24:51,230 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-18 15:24:51,230 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:24:51 BoogieIcfgContainer [2024-11-18 15:24:51,231 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 15:24:51,233 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 15:24:51,233 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 15:24:51,236 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 15:24:51,236 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:24:37" (1/3) ... [2024-11-18 15:24:51,237 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce694fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:24:51, skipping insertion in model container [2024-11-18 15:24:51,237 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 15:24:51,238 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ce694fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:24:51, skipping insertion in model container [2024-11-18 15:24:51,238 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:24:51" (3/3) ... [2024-11-18 15:24:51,239 INFO L112 eAbstractionObserver]: Analyzing ICFG Haystacks-16.c [2024-11-18 15:24:51,255 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 15:24:51,255 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 15:24:51,408 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 15:24:51,415 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;@5f9810bc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 15:24:51,416 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 15:24:51,430 INFO L276 IsEmpty]: Start isEmpty. Operand has 2939 states, 264 states have (on average 1.0075757575757576) internal successors, (266), 265 states have internal predecessors, (266), 2672 states have call successors, (2672), 1 states have call predecessors, (2672), 1 states have return successors, (2672), 2672 states have call predecessors, (2672), 2672 states have call successors, (2672) [2024-11-18 15:24:52,757 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13620 [2024-11-18 15:24:52,758 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:24:52,765 INFO L215 NwaCegarLoop]: trace histogram [2672, 2672, 2672, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-18 15:24:52,769 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:24:52,774 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:24:52,779 INFO L85 PathProgramCache]: Analyzing trace with hash 664765616, now seen corresponding path program 1 times [2024-11-18 15:24:52,788 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:24:52,789 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002469431] [2024-11-18 15:24:52,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:24:52,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 15:24:53,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:25:15,218 INFO L134 CoverageAnalysis]: Checked inductivity of 14273824 backedges. 0 proven. 5342 refuted. 0 times theorem prover too weak. 14268482 trivial. 0 not checked. [2024-11-18 15:25:15,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 15:25:15,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002469431] [2024-11-18 15:25:15,220 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002469431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 15:25:15,220 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [837822266] [2024-11-18 15:25:15,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:25:15,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 15:25:15,222 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 15:25:15,224 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 15:25:15,224 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 15:25:18,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 15:25:19,029 INFO L255 TraceCheckSpWp]: Trace formula consists of 24586 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 15:25:19,324 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 15:25:20,068 INFO L134 CoverageAnalysis]: Checked inductivity of 14273824 backedges. 5342 proven. 0 refuted. 0 times theorem prover too weak. 14268482 trivial. 0 not checked. [2024-11-18 15:25:20,068 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 15:25:20,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [837822266] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 15:25:20,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 15:25:20,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 15:25:20,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357664499] [2024-11-18 15:25:20,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 15:25:20,090 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 15:25:20,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 15:25:20,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 15:25:20,126 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 15:25:20,144 INFO L87 Difference]: Start difference. First operand has 2939 states, 264 states have (on average 1.0075757575757576) internal successors, (266), 265 states have internal predecessors, (266), 2672 states have call successors, (2672), 1 states have call predecessors, (2672), 1 states have return successors, (2672), 2672 states have call predecessors, (2672), 2672 states have call successors, (2672) Second operand has 2 states, 2 states have (on average 132.0) internal successors, (264), 2 states have internal predecessors, (264), 2 states have call successors, (2672), 2 states have call predecessors, (2672), 1 states have return successors, (2672), 1 states have call predecessors, (2672), 2 states have call successors, (2672) [2024-11-18 15:25:20,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 15:25:20,433 INFO L93 Difference]: Finished difference Result 5872 states and 13886 transitions. [2024-11-18 15:25:20,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 15:25:20,443 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 132.0) internal successors, (264), 2 states have internal predecessors, (264), 2 states have call successors, (2672), 2 states have call predecessors, (2672), 1 states have return successors, (2672), 1 states have call predecessors, (2672), 2 states have call successors, (2672) Word has length 13619 [2024-11-18 15:25:20,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 15:25:20,502 INFO L225 Difference]: With dead ends: 5872 [2024-11-18 15:25:20,503 INFO L226 Difference]: Without dead ends: 2936 [2024-11-18 15:25:20,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13620 GetRequests, 13620 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 15:25:20,550 INFO L432 NwaCegarLoop]: 5606 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, 5606 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 15:25:20,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 5606 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 15:25:20,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2936 states. [2024-11-18 15:25:23,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2936 to 2936. [2024-11-18 15:25:23,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 262 states have (on average 1.0) internal successors, (262), 262 states have internal predecessors, (262), 2672 states have call successors, (2672), 1 states have call predecessors, (2672), 1 states have return successors, (2672), 2672 states have call predecessors, (2672), 2672 states have call successors, (2672) [2024-11-18 15:25:23,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5606 transitions. [2024-11-18 15:25:23,438 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5606 transitions. Word has length 13619 [2024-11-18 15:25:23,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 15:25:23,442 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 5606 transitions. [2024-11-18 15:25:23,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 132.0) internal successors, (264), 2 states have internal predecessors, (264), 2 states have call successors, (2672), 2 states have call predecessors, (2672), 1 states have return successors, (2672), 1 states have call predecessors, (2672), 2 states have call successors, (2672) [2024-11-18 15:25:23,450 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5606 transitions. [2024-11-18 15:25:24,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13620 [2024-11-18 15:25:24,650 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 15:25:24,654 INFO L215 NwaCegarLoop]: trace histogram [2672, 2672, 2672, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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] [2024-11-18 15:25:24,713 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 15:25:24,855 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 15:25:24,856 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 15:25:24,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 15:25:24,859 INFO L85 PathProgramCache]: Analyzing trace with hash -176931152, now seen corresponding path program 1 times [2024-11-18 15:25:24,860 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 15:25:24,860 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1772668900] [2024-11-18 15:25:24,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 15:25:24,861 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms