./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_fillercodestructure_filler-ps-co_file-31.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 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_fillercodestructure_filler-ps-co_file-31.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 e35b58fc5b5d3bd96f979b50ab552950d520b0e41c0cf9ea2d0c476079709cda --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 05:28:57,951 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 05:28:58,035 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-20 05:28:58,043 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 05:28:58,045 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 05:28:58,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 05:28:58,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 05:28:58,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 05:28:58,080 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 05:28:58,081 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 05:28:58,082 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 05:28:58,082 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 05:28:58,083 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 05:28:58,086 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 05:28:58,086 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 05:28:58,087 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 05:28:58,087 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 05:28:58,087 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 05:28:58,088 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 05:28:58,088 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 05:28:58,088 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 05:28:58,089 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 05:28:58,093 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 05:28:58,094 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 05:28:58,094 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 05:28:58,094 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 05:28:58,094 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 05:28:58,094 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 05:28:58,095 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 05:28:58,095 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 05:28:58,095 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 05:28:58,095 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 05:28:58,095 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 05:28:58,096 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 05:28:58,096 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 05:28:58,097 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 05:28:58,097 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 05:28:58,097 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 05:28:58,097 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 05:28:58,098 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 05:28:58,099 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 05:28:58,099 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 05:28:58,099 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e35b58fc5b5d3bd96f979b50ab552950d520b0e41c0cf9ea2d0c476079709cda [2024-11-20 05:28:58,355 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 05:28:58,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 05:28:58,387 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 05:28:58,388 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 05:28:58,389 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 05:28:58,391 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-11-20 05:28:59,876 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 05:29:00,069 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 05:29:00,070 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-11-20 05:29:00,080 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f4a42f32/5438da20aacf495992fed38fb82afe31/FLAGdfea12b64 [2024-11-20 05:29:00,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4f4a42f32/5438da20aacf495992fed38fb82afe31 [2024-11-20 05:29:00,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 05:29:00,445 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 05:29:00,447 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 05:29:00,447 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 05:29:00,451 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 05:29:00,452 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:00,452 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ea47bd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00, skipping insertion in model container [2024-11-20 05:29:00,453 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:00,487 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 05:29:00,663 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i[919,932] [2024-11-20 05:29:00,829 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 05:29:00,855 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 05:29:00,867 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i[919,932] [2024-11-20 05:29:00,928 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 05:29:00,950 INFO L204 MainTranslator]: Completed translation [2024-11-20 05:29:00,951 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00 WrapperNode [2024-11-20 05:29:00,951 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 05:29:00,952 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 05:29:00,953 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 05:29:00,953 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 05:29:00,961 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:00,979 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,025 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 266 [2024-11-20 05:29:01,030 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 05:29:01,031 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 05:29:01,032 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 05:29:01,032 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 05:29:01,042 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,042 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,047 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,077 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-20 05:29:01,077 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,077 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,095 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,101 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,106 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 05:29:01,107 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 05:29:01,107 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 05:29:01,108 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 05:29:01,111 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (1/1) ... [2024-11-20 05:29:01,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 05:29:01,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 05:29:01,147 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-20 05:29:01,153 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-20 05:29:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 05:29:01,194 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 05:29:01,195 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 05:29:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 05:29:01,196 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 05:29:01,196 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 05:29:01,305 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 05:29:01,307 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 05:29:01,800 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-20 05:29:01,800 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 05:29:01,817 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 05:29:01,818 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-20 05:29:01,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:29:01 BoogieIcfgContainer [2024-11-20 05:29:01,818 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 05:29:01,820 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 05:29:01,821 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 05:29:01,824 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 05:29:01,825 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 05:29:00" (1/3) ... [2024-11-20 05:29:01,825 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157a2587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:29:01, skipping insertion in model container [2024-11-20 05:29:01,826 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 05:29:00" (2/3) ... [2024-11-20 05:29:01,827 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@157a2587 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 05:29:01, skipping insertion in model container [2024-11-20 05:29:01,827 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 05:29:01" (3/3) ... [2024-11-20 05:29:01,828 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-11-20 05:29:01,843 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 05:29:01,843 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-20 05:29:01,905 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 05:29:01,911 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;@3825cd83, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 05:29:01,912 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-20 05:29:01,916 INFO L276 IsEmpty]: Start isEmpty. Operand has 121 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 71 states have internal predecessors, (97), 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) [2024-11-20 05:29:01,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-20 05:29:01,934 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:29:01,935 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] [2024-11-20 05:29:01,935 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:29:01,940 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:29:01,941 INFO L85 PathProgramCache]: Analyzing trace with hash -166575295, now seen corresponding path program 1 times [2024-11-20 05:29:01,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:29:01,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2083399911] [2024-11-20 05:29:01,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:29:01,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:29:02,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:29:02,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:29:02,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:29:02,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:29:02,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 05:29:02,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:29:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 05:29:02,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:29:02,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,387 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 05:29:02,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:29:02,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:29:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:29:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:29:02,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:29:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:29:02,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 05:29:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,427 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:29:02,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 05:29:02,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,438 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:29:02,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 05:29:02,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 05:29:02,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 05:29:02,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 05:29:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 05:29:02,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 05:29:02,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 05:29:02,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-20 05:29:02,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 05:29:02,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-20 05:29:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-20 05:29:02,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-20 05:29:02,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-20 05:29:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-20 05:29:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-20 05:29:02,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-20 05:29:02,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-20 05:29:02,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-20 05:29:02,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-20 05:29:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,546 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-20 05:29:02,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-20 05:29:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-20 05:29:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-20 05:29:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-20 05:29:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-20 05:29:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,567 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-20 05:29:02,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-20 05:29:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-20 05:29:02,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-20 05:29:02,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:02,592 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-20 05:29:02,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:29:02,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2083399911] [2024-11-20 05:29:02,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2083399911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:29:02,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:29:02,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 05:29:02,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47365324] [2024-11-20 05:29:02,597 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:29:02,602 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 05:29:02,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:29:02,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 05:29:02,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 05:29:02,628 INFO L87 Difference]: Start difference. First operand has 121 states, 70 states have (on average 1.3857142857142857) internal successors, (97), 71 states have internal predecessors, (97), 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 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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) [2024-11-20 05:29:02,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:29:02,674 INFO L93 Difference]: Finished difference Result 235 states and 428 transitions. [2024-11-20 05:29:02,676 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 05:29:02,678 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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 291 [2024-11-20 05:29:02,679 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:29:02,692 INFO L225 Difference]: With dead ends: 235 [2024-11-20 05:29:02,692 INFO L226 Difference]: Without dead ends: 117 [2024-11-20 05:29:02,697 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 [2024-11-20 05:29:02,701 INFO L432 NwaCegarLoop]: 186 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 186 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 05:29:02,704 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 05:29:02,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 117 states. [2024-11-20 05:29:02,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 117 to 117. [2024-11-20 05:29:02,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 67 states have (on average 1.3432835820895523) internal successors, (90), 67 states have internal predecessors, (90), 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) [2024-11-20 05:29:02,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 186 transitions. [2024-11-20 05:29:02,768 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 186 transitions. Word has length 291 [2024-11-20 05:29:02,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:29:02,768 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 186 transitions. [2024-11-20 05:29:02,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 27.0) internal successors, (54), 2 states have internal predecessors, (54), 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) [2024-11-20 05:29:02,769 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 186 transitions. [2024-11-20 05:29:02,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-20 05:29:02,777 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:29:02,777 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] [2024-11-20 05:29:02,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 05:29:02,778 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:29:02,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:29:02,779 INFO L85 PathProgramCache]: Analyzing trace with hash -312055487, now seen corresponding path program 1 times [2024-11-20 05:29:02,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:29:02,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [708174528] [2024-11-20 05:29:02,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:29:02,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:29:02,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:29:03,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:29:03,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:29:03,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:29:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 05:29:03,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:29:03,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 05:29:03,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:29:03,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 05:29:03,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:29:03,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:29:03,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,063 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:29:03,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:29:03,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:29:03,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:29:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 05:29:03,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:29:03,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 05:29:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:29:03,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 05:29:03,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 05:29:03,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 05:29:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 05:29:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 05:29:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 05:29:03,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,099 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 05:29:03,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-20 05:29:03,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 05:29:03,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,110 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-20 05:29:03,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,114 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-20 05:29:03,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-20 05:29:03,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-20 05:29:03,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-20 05:29:03,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-20 05:29:03,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,165 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-20 05:29:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-20 05:29:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-20 05:29:03,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,176 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-20 05:29:03,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,182 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-20 05:29:03,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-20 05:29:03,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-20 05:29:03,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-20 05:29:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,190 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-20 05:29:03,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-20 05:29:03,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-20 05:29:03,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,199 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-20 05:29:03,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,201 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-20 05:29:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-20 05:29:03,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,209 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-20 05:29:03,209 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:29:03,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [708174528] [2024-11-20 05:29:03,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [708174528] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:29:03,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:29:03,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 05:29:03,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68311707] [2024-11-20 05:29:03,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:29:03,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 05:29:03,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:29:03,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 05:29:03,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 05:29:03,213 INFO L87 Difference]: Start difference. First operand 117 states and 186 transitions. Second operand has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-11-20 05:29:03,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:29:03,319 INFO L93 Difference]: Finished difference Result 344 states and 550 transitions. [2024-11-20 05:29:03,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 05:29:03,320 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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 291 [2024-11-20 05:29:03,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:29:03,326 INFO L225 Difference]: With dead ends: 344 [2024-11-20 05:29:03,326 INFO L226 Difference]: Without dead ends: 230 [2024-11-20 05:29:03,328 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 05:29:03,331 INFO L432 NwaCegarLoop]: 355 mSDtfsCounter, 174 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 174 SdHoareTripleChecker+Valid, 530 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 05:29:03,331 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [174 Valid, 530 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 05:29:03,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-11-20 05:29:03,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 121. [2024-11-20 05:29:03,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 71 states have (on average 1.3380281690140845) internal successors, (95), 71 states have internal predecessors, (95), 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) [2024-11-20 05:29:03,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 191 transitions. [2024-11-20 05:29:03,367 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 191 transitions. Word has length 291 [2024-11-20 05:29:03,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:29:03,371 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 191 transitions. [2024-11-20 05:29:03,371 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 3 states have internal predecessors, (54), 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) [2024-11-20 05:29:03,371 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 191 transitions. [2024-11-20 05:29:03,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-20 05:29:03,376 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:29:03,377 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] [2024-11-20 05:29:03,377 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-20 05:29:03,377 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:29:03,377 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:29:03,378 INFO L85 PathProgramCache]: Analyzing trace with hash -1121402113, now seen corresponding path program 1 times [2024-11-20 05:29:03,378 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:29:03,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966030144] [2024-11-20 05:29:03,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:29:03,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:29:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-20 05:29:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2024-11-20 05:29:03,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-20 05:29:03,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-20 05:29:03,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-20 05:29:03,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 05:29:03,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2024-11-20 05:29:03,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 05:29:03,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-20 05:29:03,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2024-11-20 05:29:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 60 [2024-11-20 05:29:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-20 05:29:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 05:29:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2024-11-20 05:29:03,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2024-11-20 05:29:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2024-11-20 05:29:03,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 05:29:03,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-20 05:29:03,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2024-11-20 05:29:03,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-11-20 05:29:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2024-11-20 05:29:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:03,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-11-20 05:29:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2024-11-20 05:29:04,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-20 05:29:04,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-11-20 05:29:04,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-20 05:29:04,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-20 05:29:04,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2024-11-20 05:29:04,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2024-11-20 05:29:04,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-20 05:29:04,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,040 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2024-11-20 05:29:04,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2024-11-20 05:29:04,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2024-11-20 05:29:04,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 188 [2024-11-20 05:29:04,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 194 [2024-11-20 05:29:04,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-20 05:29:04,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2024-11-20 05:29:04,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2024-11-20 05:29:04,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2024-11-20 05:29:04,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 221 [2024-11-20 05:29:04,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2024-11-20 05:29:04,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-20 05:29:04,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2024-11-20 05:29:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,112 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 243 [2024-11-20 05:29:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2024-11-20 05:29:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2024-11-20 05:29:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2024-11-20 05:29:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,132 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 265 [2024-11-20 05:29:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 05:29:04,137 INFO L134 CoverageAnalysis]: Checked inductivity of 4512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4512 trivial. 0 not checked. [2024-11-20 05:29:04,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 05:29:04,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966030144] [2024-11-20 05:29:04,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966030144] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 05:29:04,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 05:29:04,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 05:29:04,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736122277] [2024-11-20 05:29:04,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 05:29:04,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 05:29:04,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 05:29:04,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 05:29:04,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 05:29:04,142 INFO L87 Difference]: Start difference. First operand 121 states and 191 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-11-20 05:29:04,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 05:29:04,395 INFO L93 Difference]: Finished difference Result 352 states and 563 transitions. [2024-11-20 05:29:04,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 05:29:04,395 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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 291 [2024-11-20 05:29:04,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 05:29:04,410 INFO L225 Difference]: With dead ends: 352 [2024-11-20 05:29:04,411 INFO L226 Difference]: Without dead ends: 234 [2024-11-20 05:29:04,412 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 97 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 05:29:04,413 INFO L432 NwaCegarLoop]: 180 mSDtfsCounter, 95 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 05:29:04,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 431 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 05:29:04,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-11-20 05:29:04,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 212. [2024-11-20 05:29:04,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 212 states, 113 states have (on average 1.2920353982300885) internal successors, (146), 113 states have internal predecessors, (146), 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) [2024-11-20 05:29:04,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 338 transitions. [2024-11-20 05:29:04,447 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 338 transitions. Word has length 291 [2024-11-20 05:29:04,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 05:29:04,448 INFO L471 AbstractCegarLoop]: Abstraction has 212 states and 338 transitions. [2024-11-20 05:29:04,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 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) [2024-11-20 05:29:04,449 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 338 transitions. [2024-11-20 05:29:04,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2024-11-20 05:29:04,452 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 05:29:04,453 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] [2024-11-20 05:29:04,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 05:29:04,453 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-20 05:29:04,453 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 05:29:04,454 INFO L85 PathProgramCache]: Analyzing trace with hash 1893701505, now seen corresponding path program 1 times [2024-11-20 05:29:04,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 05:29:04,454 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937120192] [2024-11-20 05:29:04,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 05:29:04,454 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 05:29:04,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat