./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-55.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 84cfde4a Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-55.i -s /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-clean/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 8a3002039cd21413113bf498930a905fc3f73e30075556fe0114040231bbb24a --- Real Ultimate output --- This is Ultimate 0.2.5-dev-84cfde4 [2024-10-11 07:34:01,270 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-11 07:34:01,361 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-11 07:34:01,365 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-11 07:34:01,366 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-11 07:34:01,402 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-11 07:34:01,403 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-11 07:34:01,404 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-11 07:34:01,404 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-11 07:34:01,405 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-11 07:34:01,406 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-11 07:34:01,407 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-11 07:34:01,407 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-11 07:34:01,408 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-11 07:34:01,408 INFO L153 SettingsManager]: * Use SBE=true [2024-10-11 07:34:01,411 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-11 07:34:01,412 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-11 07:34:01,412 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-11 07:34:01,412 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-11 07:34:01,413 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-11 07:34:01,413 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-11 07:34:01,413 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-11 07:34:01,414 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-11 07:34:01,414 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-11 07:34:01,414 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-11 07:34:01,414 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-11 07:34:01,415 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-11 07:34:01,420 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-11 07:34:01,421 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-11 07:34:01,421 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-11 07:34:01,421 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-11 07:34:01,422 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-11 07:34:01,422 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 07:34:01,422 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-11 07:34:01,422 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-11 07:34:01,423 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-11 07:34:01,423 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-11 07:34:01,423 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-11 07:34:01,423 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-11 07:34:01,424 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-11 07:34:01,424 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-11 07:34:01,425 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-11 07:34:01,425 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-clean/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8a3002039cd21413113bf498930a905fc3f73e30075556fe0114040231bbb24a [2024-10-11 07:34:01,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-11 07:34:01,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-11 07:34:01,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-11 07:34:01,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-11 07:34:01,713 INFO L274 PluginConnector]: CDTParser initialized [2024-10-11 07:34:01,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-55.i [2024-10-11 07:34:03,233 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-11 07:34:03,438 INFO L384 CDTParser]: Found 1 translation units. [2024-10-11 07:34:03,439 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-55.i [2024-10-11 07:34:03,453 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0abf5e1e7/0e8662f95bf045ee9636c886bbf35dba/FLAGec5ba9ee2 [2024-10-11 07:34:03,812 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/data/0abf5e1e7/0e8662f95bf045ee9636c886bbf35dba [2024-10-11 07:34:03,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-11 07:34:03,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-11 07:34:03,820 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-11 07:34:03,821 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-11 07:34:03,827 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-11 07:34:03,828 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:34:03" (1/1) ... [2024-10-11 07:34:03,829 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1a72265d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:03, skipping insertion in model container [2024-10-11 07:34:03,829 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 07:34:03" (1/1) ... [2024-10-11 07:34:03,861 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-11 07:34:04,053 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-55.i[917,930] [2024-10-11 07:34:04,129 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 07:34:04,145 INFO L200 MainTranslator]: Completed pre-run [2024-10-11 07:34:04,157 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_steplocals_file-55.i[917,930] [2024-10-11 07:34:04,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-11 07:34:04,215 INFO L204 MainTranslator]: Completed translation [2024-10-11 07:34:04,216 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04 WrapperNode [2024-10-11 07:34:04,216 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-11 07:34:04,217 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-11 07:34:04,220 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-11 07:34:04,220 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-11 07:34:04,228 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,237 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,272 INFO L138 Inliner]: procedures = 26, calls = 54, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 207 [2024-10-11 07:34:04,272 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-11 07:34:04,273 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-11 07:34:04,273 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-11 07:34:04,273 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-11 07:34:04,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,289 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,292 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,323 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]. [2024-10-11 07:34:04,324 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,324 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,335 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,339 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,341 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,343 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,349 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-11 07:34:04,352 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-11 07:34:04,353 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-11 07:34:04,353 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-11 07:34:04,354 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (1/1) ... [2024-10-11 07:34:04,362 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-11 07:34:04,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:34:04,391 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-11 07:34:04,395 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-11 07:34:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-11 07:34:04,451 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-11 07:34:04,452 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-11 07:34:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-11 07:34:04,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-11 07:34:04,453 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-11 07:34:04,551 INFO L238 CfgBuilder]: Building ICFG [2024-10-11 07:34:04,554 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-11 07:34:04,937 INFO L? ?]: Removed 8 outVars from TransFormulas that were not future-live. [2024-10-11 07:34:04,938 INFO L287 CfgBuilder]: Performing block encoding [2024-10-11 07:34:05,018 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-11 07:34:05,018 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-11 07:34:05,019 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:34:05 BoogieIcfgContainer [2024-10-11 07:34:05,019 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-11 07:34:05,023 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-11 07:34:05,023 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-11 07:34:05,027 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-11 07:34:05,028 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 07:34:03" (1/3) ... [2024-10-11 07:34:05,030 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c49b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:34:05, skipping insertion in model container [2024-10-11 07:34:05,030 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 07:34:04" (2/3) ... [2024-10-11 07:34:05,031 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c49b51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 07:34:05, skipping insertion in model container [2024-10-11 07:34:05,031 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 07:34:05" (3/3) ... [2024-10-11 07:34:05,032 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_steplocals_file-55.i [2024-10-11 07:34:05,051 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-11 07:34:05,051 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-11 07:34:05,117 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-11 07:34:05,124 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;@32bb3308, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-11 07:34:05,124 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-11 07:34:05,129 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 42 states have internal predecessors, (53), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-11 07:34:05,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-10-11 07:34:05,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:34:05,147 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:34:05,147 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:34:05,152 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:34:05,153 INFO L85 PathProgramCache]: Analyzing trace with hash 602854788, now seen corresponding path program 1 times [2024-10-11 07:34:05,162 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:34:05,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073333019] [2024-10-11 07:34:05,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:34:05,164 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:34:05,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:34:05,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:34:05,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:34:05,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,613 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:34:05,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,618 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:34:05,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:34:05,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:34:05,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:34:05,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:34:05,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 07:34:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 07:34:05,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 07:34:05,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 07:34:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 07:34:05,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 07:34:05,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 07:34:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 07:34:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 07:34:05,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 07:34:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 07:34:05,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 07:34:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 07:34:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 07:34:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 07:34:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 07:34:05,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 07:34:05,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,781 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-11 07:34:05,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,785 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-11 07:34:05,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-11 07:34:05,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-11 07:34:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 07:34:05,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-11 07:34:05,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 07:34:05,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-11 07:34:05,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-11 07:34:05,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,842 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-11 07:34:05,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-11 07:34:05,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-11 07:34:05,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-11 07:34:05,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-11 07:34:05,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-11 07:34:05,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:05,890 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-10-11 07:34:05,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:34:05,891 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073333019] [2024-10-11 07:34:05,892 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073333019] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:34:05,892 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:34:05,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-11 07:34:05,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780638590] [2024-10-11 07:34:05,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:34:05,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-11 07:34:05,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:34:05,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-11 07:34:05,938 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 07:34:05,940 INFO L87 Difference]: Start difference. First operand has 85 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 42 states have internal predecessors, (53), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) Second operand has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 2 states have call successors, (41) [2024-10-11 07:34:06,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:34:06,004 INFO L93 Difference]: Finished difference Result 167 states and 309 transitions. [2024-10-11 07:34:06,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-11 07:34:06,008 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 2 states have call successors, (41) Word has length 239 [2024-10-11 07:34:06,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:34:06,018 INFO L225 Difference]: With dead ends: 167 [2024-10-11 07:34:06,019 INFO L226 Difference]: Without dead ends: 83 [2024-10-11 07:34:06,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-11 07:34:06,029 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:34:06,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 127 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:34:06,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-11 07:34:06,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-10-11 07:34:06,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 40 states have (on average 1.2) internal successors, (48), 40 states have internal predecessors, (48), 41 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 41 states have call predecessors, (41), 41 states have call successors, (41) [2024-10-11 07:34:06,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 130 transitions. [2024-10-11 07:34:06,096 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 130 transitions. Word has length 239 [2024-10-11 07:34:06,097 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:34:06,097 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 130 transitions. [2024-10-11 07:34:06,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 18.5) internal successors, (37), 2 states have internal predecessors, (37), 2 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 2 states have call successors, (41) [2024-10-11 07:34:06,098 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 130 transitions. [2024-10-11 07:34:06,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-10-11 07:34:06,108 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:34:06,109 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:34:06,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-11 07:34:06,113 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:34:06,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:34:06,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1341089206, now seen corresponding path program 1 times [2024-10-11 07:34:06,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:34:06,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [165384075] [2024-10-11 07:34:06,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:34:06,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:34:06,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-11 07:34:06,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-11 07:34:06,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-11 07:34:06,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,415 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-11 07:34:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,419 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-11 07:34:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-11 07:34:06,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-11 07:34:06,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-11 07:34:06,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-11 07:34:06,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-11 07:34:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-11 07:34:06,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-10-11 07:34:06,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-11 07:34:06,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2024-10-11 07:34:06,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-11 07:34:06,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-11 07:34:06,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-11 07:34:06,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-11 07:34:06,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-11 07:34:06,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-11 07:34:06,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-11 07:34:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-11 07:34:06,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-11 07:34:06,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-11 07:34:06,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-11 07:34:06,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-11 07:34:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-11 07:34:06,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-11 07:34:06,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-11 07:34:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,552 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-11 07:34:06,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-11 07:34:06,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-11 07:34:06,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-11 07:34:06,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-11 07:34:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2024-10-11 07:34:06,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-11 07:34:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-11 07:34:06,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-11 07:34:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-11 07:34:06,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-11 07:34:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-11 07:34:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-11 07:34:06,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3280 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3280 trivial. 0 not checked. [2024-10-11 07:34:06,617 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-11 07:34:06,617 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [165384075] [2024-10-11 07:34:06,617 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [165384075] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-11 07:34:06,617 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-11 07:34:06,617 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-11 07:34:06,617 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448693444] [2024-10-11 07:34:06,618 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-11 07:34:06,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-11 07:34:06,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-11 07:34:06,622 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-11 07:34:06,622 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 07:34:06,622 INFO L87 Difference]: Start difference. First operand 83 states and 130 transitions. Second operand has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 07:34:06,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-11 07:34:06,708 INFO L93 Difference]: Finished difference Result 213 states and 331 transitions. [2024-10-11 07:34:06,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-11 07:34:06,711 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) Word has length 239 [2024-10-11 07:34:06,713 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-11 07:34:06,717 INFO L225 Difference]: With dead ends: 213 [2024-10-11 07:34:06,718 INFO L226 Difference]: Without dead ends: 131 [2024-10-11 07:34:06,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-11 07:34:06,720 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 68 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-11 07:34:06,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 244 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-11 07:34:06,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2024-10-11 07:34:06,758 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 128. [2024-10-11 07:34:06,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 63 states have (on average 1.1746031746031746) internal successors, (74), 64 states have internal predecessors, (74), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 61 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-11 07:34:06,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 198 transitions. [2024-10-11 07:34:06,764 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 198 transitions. Word has length 239 [2024-10-11 07:34:06,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-11 07:34:06,765 INFO L471 AbstractCegarLoop]: Abstraction has 128 states and 198 transitions. [2024-10-11 07:34:06,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.333333333333334) internal successors, (37), 3 states have internal predecessors, (37), 1 states have call successors, (41), 1 states have call predecessors, (41), 1 states have return successors, (41), 1 states have call predecessors, (41), 1 states have call successors, (41) [2024-10-11 07:34:06,766 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 198 transitions. [2024-10-11 07:34:06,769 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2024-10-11 07:34:06,769 INFO L207 NwaCegarLoop]: Found error trace [2024-10-11 07:34:06,770 INFO L215 NwaCegarLoop]: trace histogram [41, 41, 41, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-11 07:34:06,770 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-11 07:34:06,770 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-11 07:34:06,771 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-11 07:34:06,771 INFO L85 PathProgramCache]: Analyzing trace with hash -1281983862, now seen corresponding path program 1 times [2024-10-11 07:34:06,771 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-11 07:34:06,771 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210639105] [2024-10-11 07:34:06,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:34:06,772 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-11 07:34:07,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-11 07:34:07,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [430655163] [2024-10-11 07:34:07,154 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-11 07:34:07,155 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-11 07:34:07,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 [2024-10-11 07:34:07,157 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-11 07:34:07,159 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-clean/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process