./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 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_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.fs.cvc5-61a6796-m [2024-10-14 10:30:06,685 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-14 10:30:06,757 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-14 10:30:06,762 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-14 10:30:06,765 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-14 10:30:06,793 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-14 10:30:06,795 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-14 10:30:06,795 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-14 10:30:06,796 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-14 10:30:06,796 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-14 10:30:06,797 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-14 10:30:06,797 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-14 10:30:06,798 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-14 10:30:06,798 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-14 10:30:06,799 INFO L153 SettingsManager]: * Use SBE=true [2024-10-14 10:30:06,799 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-14 10:30:06,800 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-14 10:30:06,800 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-14 10:30:06,800 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-14 10:30:06,801 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-14 10:30:06,801 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-14 10:30:06,805 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-14 10:30:06,805 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-14 10:30:06,806 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-14 10:30:06,806 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-14 10:30:06,806 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-14 10:30:06,806 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-14 10:30:06,807 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-14 10:30:06,807 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-14 10:30:06,807 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-14 10:30:06,808 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-14 10:30:06,808 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-14 10:30:06,808 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 10:30:06,809 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-14 10:30:06,809 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-14 10:30:06,809 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-14 10:30:06,810 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-14 10:30:06,810 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-14 10:30:06,810 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-14 10:30:06,810 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-14 10:30:06,810 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-14 10:30:06,811 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-14 10:30:06,811 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e35b58fc5b5d3bd96f979b50ab552950d520b0e41c0cf9ea2d0c476079709cda [2024-10-14 10:30:07,153 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-14 10:30:07,182 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-14 10:30:07,186 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-14 10:30:07,187 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-14 10:30:07,188 INFO L274 PluginConnector]: CDTParser initialized [2024-10-14 10:30:07,189 INFO L431 ainManager$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 [2024-10-14 10:30:08,807 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-14 10:30:09,066 INFO L384 CDTParser]: Found 1 translation units. [2024-10-14 10:30:09,067 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-10-14 10:30:09,082 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d6a44cfe/c154e199ac204288b87fa66a16a25ce4/FLAG14214a740 [2024-10-14 10:30:09,393 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d6a44cfe/c154e199ac204288b87fa66a16a25ce4 [2024-10-14 10:30:09,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-14 10:30:09,397 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-14 10:30:09,398 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-14 10:30:09,398 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-14 10:30:09,403 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-14 10:30:09,404 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:09,405 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@99a1ecb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09, skipping insertion in model container [2024-10-14 10:30:09,405 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:09,448 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-14 10:30:09,635 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_fillercodestructure_filler-ps-co_file-31.i[919,932] [2024-10-14 10:30:09,733 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 10:30:09,749 INFO L200 MainTranslator]: Completed pre-run [2024-10-14 10:30:09,760 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_fillercodestructure_filler-ps-co_file-31.i[919,932] [2024-10-14 10:30:09,822 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-14 10:30:09,849 INFO L204 MainTranslator]: Completed translation [2024-10-14 10:30:09,850 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09 WrapperNode [2024-10-14 10:30:09,850 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-14 10:30:09,851 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-14 10:30:09,851 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-14 10:30:09,851 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-14 10:30:09,859 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:09,873 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:09,934 INFO L138 Inliner]: procedures = 26, calls = 61, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 266 [2024-10-14 10:30:09,935 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-14 10:30:09,936 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-14 10:30:09,936 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-14 10:30:09,936 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-14 10:30:09,948 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:09,949 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:09,953 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:09,978 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 10:30:09,978 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:09,979 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:09,991 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:09,996 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:10,000 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:10,005 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:10,012 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-14 10:30:10,013 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-14 10:30:10,013 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-14 10:30:10,014 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-14 10:30:10,015 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (1/1) ... [2024-10-14 10:30:10,029 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-14 10:30:10,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-14 10:30:10,063 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 10:30:10,067 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 10:30:10,123 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-14 10:30:10,123 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-14 10:30:10,124 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-14 10:30:10,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-14 10:30:10,125 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-14 10:30:10,125 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-14 10:30:10,317 INFO L238 CfgBuilder]: Building ICFG [2024-10-14 10:30:10,326 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-14 10:30:10,896 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-10-14 10:30:10,896 INFO L287 CfgBuilder]: Performing block encoding [2024-10-14 10:30:10,943 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-14 10:30:10,943 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-14 10:30:10,944 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:30:10 BoogieIcfgContainer [2024-10-14 10:30:10,944 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-14 10:30:10,946 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-14 10:30:10,946 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-14 10:30:10,950 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-14 10:30:10,950 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 10:30:09" (1/3) ... [2024-10-14 10:30:10,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b88fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:30:10, skipping insertion in model container [2024-10-14 10:30:10,951 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 10:30:09" (2/3) ... [2024-10-14 10:30:10,951 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@54b88fa1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 10:30:10, skipping insertion in model container [2024-10-14 10:30:10,952 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 10:30:10" (3/3) ... [2024-10-14 10:30:10,954 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-ps-co_file-31.i [2024-10-14 10:30:10,972 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-14 10:30:10,972 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-14 10:30:11,055 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-14 10:30:11,064 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;@54d3c715, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-14 10:30:11,065 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-14 10:30:11,070 INFO L276 IsEmpty]: Start isEmpty. Operand has 115 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 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 10:30:11,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-10-14 10:30:11,095 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:30:11,096 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] [2024-10-14 10:30:11,097 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:30:11,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:30:11,103 INFO L85 PathProgramCache]: Analyzing trace with hash 1252004742, now seen corresponding path program 1 times [2024-10-14 10:30:11,113 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:30:11,113 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1060261969] [2024-10-14 10:30:11,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:30:11,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:30:11,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:30:11,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,554 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:30:11,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,562 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:30:11,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:30:11,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:30:11,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:30:11,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:30:11,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:30:11,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:30:11,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:30:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:30:11,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:30:11,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 10:30:11,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:30:11,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 10:30:11,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:30:11,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 10:30:11,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:30:11,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 10:30:11,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:30:11,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 10:30:11,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:30:11,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 10:30:11,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:30:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 10:30:11,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 10:30:11,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 10:30:11,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-14 10:30:11,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 10:30:11,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-14 10:30:11,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 10:30:11,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-14 10:30:11,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,774 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 10:30:11,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 10:30:11,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-14 10:30:11,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,794 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-14 10:30:11,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-14 10:30:11,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-14 10:30:11,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-14 10:30:11,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-14 10:30:11,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-14 10:30:11,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,832 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-14 10:30:11,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-10-14 10:30:11,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,891 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-14 10:30:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-10-14 10:30:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-14 10:30:11,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-10-14 10:30:11,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-14 10:30:11,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:11,983 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 10:30:11,986 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:30:11,986 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1060261969] [2024-10-14 10:30:11,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1060261969] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:30:11,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:30:11,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-14 10:30:11,989 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [969461335] [2024-10-14 10:30:11,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:30:11,996 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-14 10:30:11,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:30:12,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-14 10:30:12,026 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-14 10:30:12,029 INFO L87 Difference]: Start difference. First operand has 115 states, 64 states have (on average 1.421875) internal successors, (91), 65 states have internal predecessors, (91), 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 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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 10:30:12,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:30:12,086 INFO L93 Difference]: Finished difference Result 227 states and 420 transitions. [2024-10-14 10:30:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-14 10:30:12,089 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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 287 [2024-10-14 10:30:12,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:30:12,098 INFO L225 Difference]: With dead ends: 227 [2024-10-14 10:30:12,099 INFO L226 Difference]: Without dead ends: 113 [2024-10-14 10:30:12,105 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 10:30:12,113 INFO L432 NwaCegarLoop]: 179 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, 179 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 10:30:12,114 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 179 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-14 10:30:12,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-14 10:30:12,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 113. [2024-10-14 10:30:12,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 63 states have (on average 1.3650793650793651) internal successors, (86), 63 states have internal predecessors, (86), 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 10:30:12,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 182 transitions. [2024-10-14 10:30:12,191 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 182 transitions. Word has length 287 [2024-10-14 10:30:12,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:30:12,192 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 182 transitions. [2024-10-14 10:30:12,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 25.0) internal successors, (50), 2 states have internal predecessors, (50), 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 10:30:12,193 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 182 transitions. [2024-10-14 10:30:12,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-10-14 10:30:12,199 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:30:12,199 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] [2024-10-14 10:30:12,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-14 10:30:12,200 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:30:12,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:30:12,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1523634810, now seen corresponding path program 1 times [2024-10-14 10:30:12,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:30:12,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1546342949] [2024-10-14 10:30:12,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:30:12,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:30:12,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:30:12,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:30:12,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:30:12,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:30:12,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:30:12,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:30:12,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:30:12,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:30:12,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:30:12,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:30:12,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:30:12,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,485 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:30:12,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 10:30:12,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:30:12,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 10:30:12,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:30:12,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 10:30:12,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:30:12,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 10:30:12,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:30:12,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 10:30:12,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:30:12,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 10:30:12,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:30:12,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 10:30:12,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 10:30:12,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 10:30:12,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-14 10:30:12,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 10:30:12,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-14 10:30:12,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 10:30:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-14 10:30:12,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,604 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 10:30:12,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 10:30:12,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-14 10:30:12,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-14 10:30:12,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-14 10:30:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-14 10:30:12,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,636 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-14 10:30:12,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,642 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-14 10:30:12,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-14 10:30:12,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-14 10:30:12,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-10-14 10:30:12,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-14 10:30:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-10-14 10:30:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-14 10:30:12,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-10-14 10:30:12,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-14 10:30:12,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:12,683 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 10:30:12,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:30:12,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1546342949] [2024-10-14 10:30:12,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1546342949] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:30:12,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:30:12,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-14 10:30:12,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450495944] [2024-10-14 10:30:12,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:30:12,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-14 10:30:12,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:30:12,689 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-14 10:30:12,690 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-14 10:30:12,690 INFO L87 Difference]: Start difference. First operand 113 states and 182 transitions. Second operand has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 10:30:12,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:30:12,870 INFO L93 Difference]: Finished difference Result 336 states and 542 transitions. [2024-10-14 10:30:12,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-14 10:30:12,871 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 287 [2024-10-14 10:30:12,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:30:12,878 INFO L225 Difference]: With dead ends: 336 [2024-10-14 10:30:12,879 INFO L226 Difference]: Without dead ends: 224 [2024-10-14 10:30:12,881 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 [2024-10-14 10:30:12,882 INFO L432 NwaCegarLoop]: 345 mSDtfsCounter, 172 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 515 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-14 10:30:12,882 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 515 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-14 10:30:12,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-10-14 10:30:12,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 117. [2024-10-14 10:30:12,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 67 states have internal predecessors, (91), 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 10:30:12,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 187 transitions. [2024-10-14 10:30:12,920 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 187 transitions. Word has length 287 [2024-10-14 10:30:12,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:30:12,923 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 187 transitions. [2024-10-14 10:30:12,923 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.666666666666668) internal successors, (50), 3 states have internal predecessors, (50), 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 10:30:12,924 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 187 transitions. [2024-10-14 10:30:12,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-10-14 10:30:12,934 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:30:12,935 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] [2024-10-14 10:30:12,935 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-14 10:30:12,936 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:30:12,936 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:30:12,937 INFO L85 PathProgramCache]: Analyzing trace with hash 251372552, now seen corresponding path program 1 times [2024-10-14 10:30:12,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:30:12,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219735637] [2024-10-14 10:30:12,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:30:12,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:30:13,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-14 10:30:13,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-14 10:30:13,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-14 10:30:13,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-14 10:30:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-14 10:30:13,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,544 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-14 10:30:13,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-14 10:30:13,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-14 10:30:13,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-14 10:30:13,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-14 10:30:13,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-14 10:30:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-14 10:30:13,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-14 10:30:13,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,598 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-14 10:30:13,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-14 10:30:13,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,609 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-14 10:30:13,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-10-14 10:30:13,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,622 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-14 10:30:13,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,628 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-10-14 10:30:13,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-14 10:30:13,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,638 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-10-14 10:30:13,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-14 10:30:13,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-10-14 10:30:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-14 10:30:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-10-14 10:30:13,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-10-14 10:30:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,684 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-14 10:30:13,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-10-14 10:30:13,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-14 10:30:13,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,707 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-10-14 10:30:13,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-14 10:30:13,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-10-14 10:30:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-14 10:30:13,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,736 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-14 10:30:13,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 191 [2024-10-14 10:30:13,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2024-10-14 10:30:13,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-10-14 10:30:13,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2024-10-14 10:30:13,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2024-10-14 10:30:13,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,776 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 218 [2024-10-14 10:30:13,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2024-10-14 10:30:13,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,789 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2024-10-14 10:30:13,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2024-10-14 10:30:13,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2024-10-14 10:30:13,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2024-10-14 10:30:13,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,819 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2024-10-14 10:30:13,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2024-10-14 10:30:13,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,834 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 262 [2024-10-14 10:30:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-14 10:30:13,842 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 10:30:13,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-14 10:30:13,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219735637] [2024-10-14 10:30:13,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219735637] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-14 10:30:13,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-14 10:30:13,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-14 10:30:13,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730310057] [2024-10-14 10:30:13,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-14 10:30:13,845 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-14 10:30:13,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-14 10:30:13,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-14 10:30:13,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-14 10:30:13,847 INFO L87 Difference]: Start difference. First operand 117 states and 187 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 10:30:14,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-14 10:30:14,170 INFO L93 Difference]: Finished difference Result 346 states and 558 transitions. [2024-10-14 10:30:14,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-14 10:30:14,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 287 [2024-10-14 10:30:14,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-14 10:30:14,176 INFO L225 Difference]: With dead ends: 346 [2024-10-14 10:30:14,179 INFO L226 Difference]: Without dead ends: 230 [2024-10-14 10:30:14,181 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 [2024-10-14 10:30:14,182 INFO L432 NwaCegarLoop]: 173 mSDtfsCounter, 95 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 416 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-14 10:30:14,185 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 416 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-14 10:30:14,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 230 states. [2024-10-14 10:30:14,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 230 to 206. [2024-10-14 10:30:14,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 107 states have (on average 1.2990654205607477) internal successors, (139), 107 states have internal predecessors, (139), 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 10:30:14,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 331 transitions. [2024-10-14 10:30:14,226 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 331 transitions. Word has length 287 [2024-10-14 10:30:14,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-14 10:30:14,227 INFO L471 AbstractCegarLoop]: Abstraction has 206 states and 331 transitions. [2024-10-14 10:30:14,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 4 states have internal predecessors, (50), 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 10:30:14,228 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 331 transitions. [2024-10-14 10:30:14,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-10-14 10:30:14,232 INFO L207 NwaCegarLoop]: Found error trace [2024-10-14 10:30:14,233 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] [2024-10-14 10:30:14,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-14 10:30:14,233 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-14 10:30:14,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-14 10:30:14,234 INFO L85 PathProgramCache]: Analyzing trace with hash -759744698, now seen corresponding path program 1 times [2024-10-14 10:30:14,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-14 10:30:14,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676701749] [2024-10-14 10:30:14,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-14 10:30:14,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-14 10:30:14,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat