./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-64.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-64.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 feaa0156af8515c11e53760c56b6153bee93f0fe9288c23521b275fb865500c1 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-10 04:57:35,573 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-10 04:57:35,671 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-10 04:57:35,676 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-10 04:57:35,677 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-10 04:57:35,701 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-10 04:57:35,701 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-10 04:57:35,702 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-10 04:57:35,702 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-10 04:57:35,703 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-10 04:57:35,705 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-10 04:57:35,705 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-10 04:57:35,706 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-10 04:57:35,706 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-10 04:57:35,708 INFO L153 SettingsManager]: * Use SBE=true [2024-11-10 04:57:35,708 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-10 04:57:35,708 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-10 04:57:35,709 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-10 04:57:35,709 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-10 04:57:35,709 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-10 04:57:35,709 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-10 04:57:35,713 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-10 04:57:35,713 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-10 04:57:35,713 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-10 04:57:35,714 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-10 04:57:35,714 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-10 04:57:35,714 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-10 04:57:35,714 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-10 04:57:35,715 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-10 04:57:35,715 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-10 04:57:35,722 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-10 04:57:35,722 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-10 04:57:35,722 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 04:57:35,722 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-10 04:57:35,723 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-10 04:57:35,723 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-10 04:57:35,723 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-10 04:57:35,723 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-10 04:57:35,723 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-10 04:57:35,723 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-10 04:57:35,724 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-10 04:57:35,724 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-10 04:57:35,724 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> feaa0156af8515c11e53760c56b6153bee93f0fe9288c23521b275fb865500c1 [2024-11-10 04:57:35,970 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-10 04:57:35,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-10 04:57:35,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-10 04:57:35,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-10 04:57:35,997 INFO L274 PluginConnector]: CDTParser initialized [2024-11-10 04:57:35,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-64.i [2024-11-10 04:57:37,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-10 04:57:37,610 INFO L384 CDTParser]: Found 1 translation units. [2024-11-10 04:57:37,611 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-64.i [2024-11-10 04:57:37,629 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42937a88e/ccbb2e62f22b4a338815f8fa45cba63b/FLAG1e747b5b4 [2024-11-10 04:57:37,642 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42937a88e/ccbb2e62f22b4a338815f8fa45cba63b [2024-11-10 04:57:37,644 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-10 04:57:37,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-10 04:57:37,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-10 04:57:37,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-10 04:57:37,652 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-10 04:57:37,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:57:37" (1/1) ... [2024-11-10 04:57:37,653 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce84740 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:37, skipping insertion in model container [2024-11-10 04:57:37,653 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:57:37" (1/1) ... [2024-11-10 04:57:37,688 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-10 04:57:37,860 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-pe-ci_file-64.i[919,932] [2024-11-10 04:57:37,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 04:57:37,937 INFO L200 MainTranslator]: Completed pre-run [2024-11-10 04:57:37,953 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-pe-ci_file-64.i[919,932] [2024-11-10 04:57:37,998 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-10 04:57:38,031 INFO L204 MainTranslator]: Completed translation [2024-11-10 04:57:38,035 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38 WrapperNode [2024-11-10 04:57:38,036 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-10 04:57:38,037 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-10 04:57:38,038 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-10 04:57:38,038 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-10 04:57:38,046 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,062 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,101 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 214 [2024-11-10 04:57:38,102 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-10 04:57:38,103 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-10 04:57:38,103 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-10 04:57:38,103 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-10 04:57:38,120 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,120 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,126 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,155 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]. [2024-11-10 04:57:38,156 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,156 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,163 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,165 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,171 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,173 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,179 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-10 04:57:38,180 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-10 04:57:38,180 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-10 04:57:38,180 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-10 04:57:38,181 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (1/1) ... [2024-11-10 04:57:38,190 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-10 04:57:38,203 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-10 04:57:38,221 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) [2024-11-10 04:57:38,225 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 [2024-11-10 04:57:38,275 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-10 04:57:38,276 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-10 04:57:38,277 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-10 04:57:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-10 04:57:38,277 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-10 04:57:38,278 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-10 04:57:38,385 INFO L256 CfgBuilder]: Building ICFG [2024-11-10 04:57:38,387 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-10 04:57:38,721 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L177: havoc property_#t~bitwise20#1;havoc property_#t~short21#1; [2024-11-10 04:57:38,769 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-10 04:57:38,769 INFO L307 CfgBuilder]: Performing block encoding [2024-11-10 04:57:38,793 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-10 04:57:38,794 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-10 04:57:38,794 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 04:57:38 BoogieIcfgContainer [2024-11-10 04:57:38,795 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-10 04:57:38,797 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-10 04:57:38,798 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-10 04:57:38,802 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-10 04:57:38,802 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:57:37" (1/3) ... [2024-11-10 04:57:38,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0ad830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:57:38, skipping insertion in model container [2024-11-10 04:57:38,803 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:57:38" (2/3) ... [2024-11-10 04:57:38,803 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b0ad830 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:57:38, skipping insertion in model container [2024-11-10 04:57:38,804 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 10.11 04:57:38" (3/3) ... [2024-11-10 04:57:38,805 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-64.i [2024-11-10 04:57:38,821 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-10 04:57:38,822 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-10 04:57:38,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-10 04:57:38,895 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;@2872ecd3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-10 04:57:38,895 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-10 04:57:38,900 INFO L276 IsEmpty]: Start isEmpty. Operand has 93 states, 62 states have (on average 1.403225806451613) internal successors, (87), 63 states have internal predecessors, (87), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 04:57:38,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-10 04:57:38,914 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 04:57:38,915 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 04:57:38,916 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 04:57:38,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 04:57:38,921 INFO L85 PathProgramCache]: Analyzing trace with hash 1755988071, now seen corresponding path program 1 times [2024-11-10 04:57:38,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 04:57:38,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [659150922] [2024-11-10 04:57:38,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 04:57:38,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 04:57:39,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 04:57:39,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 04:57:39,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 04:57:39,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 04:57:39,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 04:57:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 04:57:39,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 04:57:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 04:57:39,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 04:57:39,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 04:57:39,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 04:57:39,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,398 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 04:57:39,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 04:57:39,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 04:57:39,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 04:57:39,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 04:57:39,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 04:57:39,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,433 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 04:57:39,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,436 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 04:57:39,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-10 04:57:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-10 04:57:39,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 04:57:39,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,455 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 04:57:39,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-10 04:57:39,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,471 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-10 04:57:39,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-10 04:57:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 04:57:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 04:57:39,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:39,489 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-10 04:57:39,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 04:57:39,490 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [659150922] [2024-11-10 04:57:39,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [659150922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 04:57:39,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 04:57:39,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-10 04:57:39,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1070871962] [2024-11-10 04:57:39,494 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 04:57:39,502 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-10 04:57:39,503 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 04:57:39,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-10 04:57:39,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 04:57:39,532 INFO L87 Difference]: Start difference. First operand has 93 states, 62 states have (on average 1.403225806451613) internal successors, (87), 63 states have internal predecessors, (87), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) Second operand has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-10 04:57:39,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 04:57:39,585 INFO L93 Difference]: Finished difference Result 178 states and 307 transitions. [2024-11-10 04:57:39,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-10 04:57:39,588 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) Word has length 185 [2024-11-10 04:57:39,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 04:57:39,600 INFO L225 Difference]: With dead ends: 178 [2024-11-10 04:57:39,601 INFO L226 Difference]: Without dead ends: 88 [2024-11-10 04:57:39,605 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-10 04:57:39,609 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 133 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-10 04:57:39,611 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 133 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-10 04:57:39,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-11-10 04:57:39,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 88. [2024-11-10 04:57:39,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 88 states, 58 states have (on average 1.3620689655172413) internal successors, (79), 58 states have internal predecessors, (79), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 04:57:39,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 135 transitions. [2024-11-10 04:57:39,676 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 135 transitions. Word has length 185 [2024-11-10 04:57:39,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 04:57:39,677 INFO L471 AbstractCegarLoop]: Abstraction has 88 states and 135 transitions. [2024-11-10 04:57:39,677 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 24.0) internal successors, (48), 2 states have internal predecessors, (48), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-10 04:57:39,677 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 135 transitions. [2024-11-10 04:57:39,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-10 04:57:39,684 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 04:57:39,684 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 04:57:39,685 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-10 04:57:39,685 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 04:57:39,686 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 04:57:39,686 INFO L85 PathProgramCache]: Analyzing trace with hash 952035141, now seen corresponding path program 1 times [2024-11-10 04:57:39,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 04:57:39,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1650059172] [2024-11-10 04:57:39,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 04:57:39,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 04:57:39,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-11-10 04:57:40,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-10 04:57:40,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,565 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-10 04:57:40,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2024-11-10 04:57:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2024-11-10 04:57:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-10 04:57:40,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-11-10 04:57:40,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2024-11-10 04:57:40,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-10 04:57:40,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-10 04:57:40,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,602 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-11-10 04:57:40,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-10 04:57:40,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,612 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-11-10 04:57:40,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2024-11-10 04:57:40,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2024-11-10 04:57:40,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,630 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-11-10 04:57:40,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-10 04:57:40,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,640 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-11-10 04:57:40,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2024-11-10 04:57:40,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,650 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2024-11-10 04:57:40,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2024-11-10 04:57:40,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2024-11-10 04:57:40,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2024-11-10 04:57:40,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2024-11-10 04:57:40,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2024-11-10 04:57:40,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2024-11-10 04:57:40,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2024-11-10 04:57:40,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2024-11-10 04:57:40,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-10 04:57:40,685 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-10 04:57:40,687 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-10 04:57:40,687 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1650059172] [2024-11-10 04:57:40,688 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1650059172] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-10 04:57:40,688 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-10 04:57:40,688 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-10 04:57:40,688 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165877554] [2024-11-10 04:57:40,688 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-10 04:57:40,689 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-10 04:57:40,689 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-10 04:57:40,691 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-10 04:57:40,691 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-10 04:57:40,692 INFO L87 Difference]: Start difference. First operand 88 states and 135 transitions. Second operand has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-10 04:57:41,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-10 04:57:41,043 INFO L93 Difference]: Finished difference Result 280 states and 428 transitions. [2024-11-10 04:57:41,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-10 04:57:41,044 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) Word has length 185 [2024-11-10 04:57:41,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-10 04:57:41,050 INFO L225 Difference]: With dead ends: 280 [2024-11-10 04:57:41,050 INFO L226 Difference]: Without dead ends: 195 [2024-11-10 04:57:41,052 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-10 04:57:41,054 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 149 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 864 SdHoareTripleChecker+Invalid, 177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-10 04:57:41,055 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 864 Invalid, 177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-10 04:57:41,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 195 states. [2024-11-10 04:57:41,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 195 to 103. [2024-11-10 04:57:41,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 103 states, 73 states have (on average 1.4246575342465753) internal successors, (104), 73 states have internal predecessors, (104), 28 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 28 states have call predecessors, (28), 28 states have call successors, (28) [2024-11-10 04:57:41,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 103 states to 103 states and 160 transitions. [2024-11-10 04:57:41,078 INFO L78 Accepts]: Start accepts. Automaton has 103 states and 160 transitions. Word has length 185 [2024-11-10 04:57:41,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-10 04:57:41,080 INFO L471 AbstractCegarLoop]: Abstraction has 103 states and 160 transitions. [2024-11-10 04:57:41,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.0) internal successors, (48), 6 states have internal predecessors, (48), 1 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 1 states have call successors, (28) [2024-11-10 04:57:41,081 INFO L276 IsEmpty]: Start isEmpty. Operand 103 states and 160 transitions. [2024-11-10 04:57:41,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2024-11-10 04:57:41,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-10 04:57:41,084 INFO L215 NwaCegarLoop]: trace histogram [28, 28, 28, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-10 04:57:41,084 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-10 04:57:41,084 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-10 04:57:41,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-10 04:57:41,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1989622458, now seen corresponding path program 1 times [2024-11-10 04:57:41,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-10 04:57:41,085 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572290683] [2024-11-10 04:57:41,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-10 04:57:41,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-10 04:57:41,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat