./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_fillercode_fillercodesize_ps-cn-50_file-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 61a67961 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-10.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b64fc249111ce1622477a41c2b596a03a08ef102af2aafa943ca2a90b99192a7 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.fs.cvc5-61a6796-m [2024-10-14 08:49:53,637 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 08:49:53,697 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 08:49:53,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 08:49:53,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 08:49:53,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 08:49:53,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 08:49:53,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 08:49:53,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 08:49:53,725 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 08:49:53,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 08:49:53,726 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 08:49:53,726 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 08:49:53,727 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 08:49:53,727 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 08:49:53,727 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 08:49:53,727 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 08:49:53,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 08:49:53,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 08:49:53,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 08:49:53,729 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 08:49:53,729 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 08:49:53,729 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 08:49:53,730 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 08:49:53,730 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 08:49:53,730 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 08:49:53,731 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 08:49:53,731 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 08:49:53,731 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 08:49:53,731 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 08:49:53,732 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 08:49:53,732 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 08:49:53,732 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 08:49:53,732 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 08:49:53,733 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 08:49:53,733 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 08:49:53,733 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 08:49:53,733 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 08:49:53,734 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 08:49:53,734 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 08:49:53,734 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 08:49:53,738 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 08:49:53,739 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b64fc249111ce1622477a41c2b596a03a08ef102af2aafa943ca2a90b99192a7 [2024-10-14 08:49:54,008 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 08:49:54,031 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 08:49:54,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 08:49:54,036 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 08:49:54,036 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 08:49:54,037 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-10.i [2024-10-14 08:49:55,382 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 08:49:55,579 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 08:49:55,580 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-50_file-10.i [2024-10-14 08:49:55,590 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3c3837ca/6b80e312c868477abc8d00b2f3e0fa4b/FLAG1bcfb2c6f [2024-10-14 08:49:55,602 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3c3837ca/6b80e312c868477abc8d00b2f3e0fa4b [2024-10-14 08:49:55,604 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 08:49:55,605 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 08:49:55,607 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 08:49:55,607 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 08:49:55,612 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 08:49:55,612 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:49:55" (1/1) ... [2024-10-14 08:49:55,613 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24c7d339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:55, skipping insertion in model container [2024-10-14 08:49:55,613 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 08:49:55" (1/1) ... [2024-10-14 08:49:55,654 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 08:49:55,803 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_fillercode_fillercodesize_ps-cn-50_file-10.i[915,928] [2024-10-14 08:49:55,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 08:49:55,928 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 08:49:55,945 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_fillercode_fillercodesize_ps-cn-50_file-10.i[915,928] [2024-10-14 08:49:55,981 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 08:49:56,001 INFO L204 MainTranslator]: Completed translation [2024-10-14 08:49:56,002 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56 WrapperNode [2024-10-14 08:49:56,002 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 08:49:56,003 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 08:49:56,004 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 08:49:56,004 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 08:49:56,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,026 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,076 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 337 [2024-10-14 08:49:56,076 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 08:49:56,077 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 08:49:56,077 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 08:49:56,077 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 08:49:56,094 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,094 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,120 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,169 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]. [2024-10-14 08:49:56,170 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,170 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,188 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,201 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,208 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,217 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 08:49:56,218 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 08:49:56,219 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 08:49:56,220 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 08:49:56,220 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (1/1) ... [2024-10-14 08:49:56,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 08:49:56,233 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 08:49:56,251 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) [2024-10-14 08:49:56,262 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 [2024-10-14 08:49:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 08:49:56,297 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 08:49:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 08:49:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 08:49:56,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 08:49:56,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 08:49:56,393 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 08:49:56,395 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 08:49:56,822 INFO L? ?]: Removed 34 outVars from TransFormulas that were not future-live. [2024-10-14 08:49:56,822 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 08:49:56,854 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 08:49:56,854 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 08:49:56,855 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:49:56 BoogieIcfgContainer [2024-10-14 08:49:56,855 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 08:49:56,856 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 08:49:56,856 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 08:49:56,859 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 08:49:56,859 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 08:49:55" (1/3) ... [2024-10-14 08:49:56,860 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b8136c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:49:56, skipping insertion in model container [2024-10-14 08:49:56,860 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 08:49:56" (2/3) ... [2024-10-14 08:49:56,861 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b8136c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 08:49:56, skipping insertion in model container [2024-10-14 08:49:56,861 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 08:49:56" (3/3) ... [2024-10-14 08:49:56,862 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-50_file-10.i [2024-10-14 08:49:56,876 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 08:49:56,877 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 08:49:56,927 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 08:49:56,933 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;@4490c773, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 08:49:56,933 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 08:49:56,938 INFO L276 IsEmpty]: Start isEmpty. Operand has 142 states, 91 states have (on average 1.4395604395604396) internal successors, (131), 92 states have internal predecessors, (131), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-14 08:49:56,955 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-10-14 08:49:56,956 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 08:49:56,957 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 08:49:56,958 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 08:49:56,962 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 08:49:56,963 INFO L85 PathProgramCache]: Analyzing trace with hash -2129852944, now seen corresponding path program 1 times [2024-10-14 08:49:56,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 08:49:56,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665427613] [2024-10-14 08:49:56,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 08:49:56,971 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 08:49:57,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 08:49:57,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 08:49:57,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 08:49:57,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 08:49:57,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 08:49:57,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 08:49:57,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 08:49:57,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 08:49:57,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 08:49:57,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 08:49:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 08:49:57,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 08:49:57,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 08:49:57,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 08:49:57,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 08:49:57,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 08:49:57,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 08:49:57,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 08:49:57,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 08:49:57,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 08:49:57,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 08:49:57,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 08:49:57,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 08:49:57,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 08:49:57,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 08:49:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,395 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 08:49:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 08:49:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 08:49:57,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,411 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 08:49:57,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-14 08:49:57,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,423 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 08:49:57,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 08:49:57,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-14 08:49:57,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-14 08:49:57,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,442 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-14 08:49:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-14 08:49:57,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-10-14 08:49:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-14 08:49:57,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-14 08:49:57,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-14 08:49:57,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-14 08:49:57,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-14 08:49:57,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-14 08:49:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-10-14 08:49:57,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-10-14 08:49:57,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-14 08:49:57,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-14 08:49:57,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-14 08:49:57,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:57,556 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-10-14 08:49:57,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 08:49:57,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665427613] [2024-10-14 08:49:57,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665427613] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 08:49:57,567 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 08:49:57,567 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 08:49:57,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559392230] [2024-10-14 08:49:57,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 08:49:57,578 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 08:49:57,578 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 08:49:57,619 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 08:49:57,619 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 08:49:57,647 INFO L87 Difference]: Start difference. First operand has 142 states, 91 states have (on average 1.4395604395604396) internal successors, (131), 92 states have internal predecessors, (131), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) Second operand has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-10-14 08:49:57,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 08:49:57,719 INFO L93 Difference]: Finished difference Result 281 states and 500 transitions. [2024-10-14 08:49:57,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 08:49:57,722 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) Word has length 292 [2024-10-14 08:49:57,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 08:49:57,732 INFO L225 Difference]: With dead ends: 281 [2024-10-14 08:49:57,732 INFO L226 Difference]: Without dead ends: 140 [2024-10-14 08:49:57,737 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 08:49:57,742 INFO L432 NwaCegarLoop]: 219 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, 219 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 [2024-10-14 08:49:57,744 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 219 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 08:49:57,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2024-10-14 08:49:57,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2024-10-14 08:49:57,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 90 states have (on average 1.4) internal successors, (126), 90 states have internal predecessors, (126), 48 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-10-14 08:49:57,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 222 transitions. [2024-10-14 08:49:57,809 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 222 transitions. Word has length 292 [2024-10-14 08:49:57,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 08:49:57,810 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 222 transitions. [2024-10-14 08:49:57,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.5) internal successors, (55), 2 states have internal predecessors, (55), 2 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 2 states have call successors, (48) [2024-10-14 08:49:57,810 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 222 transitions. [2024-10-14 08:49:57,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 293 [2024-10-14 08:49:57,822 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 08:49:57,822 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 08:49:57,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 08:49:57,823 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 08:49:57,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 08:49:57,823 INFO L85 PathProgramCache]: Analyzing trace with hash -708999176, now seen corresponding path program 1 times [2024-10-14 08:49:57,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 08:49:57,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107489604] [2024-10-14 08:49:57,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 08:49:57,824 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 08:49:57,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 08:49:58,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 08:49:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 08:49:58,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 08:49:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 08:49:58,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 08:49:58,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 08:49:58,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 08:49:58,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 08:49:58,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 08:49:58,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 08:49:58,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,342 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 08:49:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 08:49:58,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 08:49:58,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 08:49:58,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 08:49:58,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 08:49:58,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,366 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 08:49:58,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 08:49:58,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-10-14 08:49:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-14 08:49:58,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-14 08:49:58,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-14 08:49:58,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-14 08:49:58,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-10-14 08:49:58,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-14 08:49:58,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2024-10-14 08:49:58,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-14 08:49:58,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 158 [2024-10-14 08:49:58,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-10-14 08:49:58,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2024-10-14 08:49:58,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,429 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2024-10-14 08:49:58,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2024-10-14 08:49:58,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2024-10-14 08:49:58,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2024-10-14 08:49:58,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2024-10-14 08:49:58,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 203 [2024-10-14 08:49:58,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,453 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 208 [2024-10-14 08:49:58,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2024-10-14 08:49:58,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2024-10-14 08:49:58,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2024-10-14 08:49:58,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2024-10-14 08:49:58,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2024-10-14 08:49:58,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2024-10-14 08:49:58,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2024-10-14 08:49:58,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-14 08:49:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2024-10-14 08:49:58,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-14 08:49:58,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 08:49:58,492 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-10-14 08:49:58,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 08:49:58,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107489604] [2024-10-14 08:49:58,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1107489604] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 08:49:58,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 08:49:58,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 08:49:58,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1513963240] [2024-10-14 08:49:58,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 08:49:58,497 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 08:49:58,497 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 08:49:58,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 08:49:58,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 08:49:58,500 INFO L87 Difference]: Start difference. First operand 140 states and 222 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-10-14 08:49:58,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 08:49:58,786 INFO L93 Difference]: Finished difference Result 419 states and 665 transitions. [2024-10-14 08:49:58,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-14 08:49:58,787 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) Word has length 292 [2024-10-14 08:49:58,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 08:49:58,791 INFO L225 Difference]: With dead ends: 419 [2024-10-14 08:49:58,791 INFO L226 Difference]: Without dead ends: 280 [2024-10-14 08:49:58,792 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-14 08:49:58,793 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 169 mSDsluCounter, 428 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 145 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 644 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 145 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-14 08:49:58,793 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 644 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [145 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-14 08:49:58,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2024-10-14 08:49:58,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 247. [2024-10-14 08:49:58,823 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 148 states have (on average 1.3716216216216217) internal successors, (203), 148 states have internal predecessors, (203), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-14 08:49:58,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 395 transitions. [2024-10-14 08:49:58,825 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 395 transitions. Word has length 292 [2024-10-14 08:49:58,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 08:49:58,826 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 395 transitions. [2024-10-14 08:49:58,826 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 4 states have internal predecessors, (55), 1 states have call successors, (48), 1 states have call predecessors, (48), 1 states have return successors, (48), 1 states have call predecessors, (48), 1 states have call successors, (48) [2024-10-14 08:49:58,826 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 395 transitions. [2024-10-14 08:49:58,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 294 [2024-10-14 08:49:58,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 08:49:58,829 INFO L215 NwaCegarLoop]: trace histogram [48, 48, 48, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-14 08:49:58,829 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 08:49:58,829 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 08:49:58,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 08:49:58,830 INFO L85 PathProgramCache]: Analyzing trace with hash -545372964, now seen corresponding path program 1 times [2024-10-14 08:49:58,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 08:49:58,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033927698] [2024-10-14 08:49:58,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 08:49:58,830 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 08:49:59,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat