./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-95.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a046e57d Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-95.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 2994806aa379fff89d66ee73b3f92e2f131a5698c09416ab21c3e49c72df39c7 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-mul-div-a046e57-m [2024-10-13 01:12:44,231 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-13 01:12:44,318 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-13 01:12:44,325 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-13 01:12:44,326 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-13 01:12:44,353 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-13 01:12:44,354 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-13 01:12:44,355 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-13 01:12:44,356 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-13 01:12:44,359 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-13 01:12:44,360 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-13 01:12:44,360 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-13 01:12:44,361 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-13 01:12:44,361 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-13 01:12:44,362 INFO L153 SettingsManager]: * Use SBE=true [2024-10-13 01:12:44,362 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-13 01:12:44,362 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-13 01:12:44,362 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-13 01:12:44,363 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-13 01:12:44,363 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-13 01:12:44,365 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-13 01:12:44,366 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-13 01:12:44,366 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-13 01:12:44,366 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-13 01:12:44,366 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-13 01:12:44,367 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-13 01:12:44,367 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-13 01:12:44,367 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-13 01:12:44,368 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-13 01:12:44,368 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-13 01:12:44,368 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-13 01:12:44,369 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-13 01:12:44,369 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 01:12:44,370 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-13 01:12:44,370 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-13 01:12:44,371 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-13 01:12:44,371 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-13 01:12:44,371 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-13 01:12:44,372 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-13 01:12:44,372 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-13 01:12:44,372 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-13 01:12:44,372 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-13 01:12:44,373 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2994806aa379fff89d66ee73b3f92e2f131a5698c09416ab21c3e49c72df39c7 [2024-10-13 01:12:44,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-13 01:12:44,654 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-13 01:12:44,658 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-13 01:12:44,659 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-13 01:12:44,659 INFO L274 PluginConnector]: CDTParser initialized [2024-10-13 01:12:44,660 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-95.i [2024-10-13 01:12:46,158 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-13 01:12:46,374 INFO L384 CDTParser]: Found 1 translation units. [2024-10-13 01:12:46,374 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-95.i [2024-10-13 01:12:46,384 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17159e125/c26a3385c7594f0fbfc0af84c00fbcc4/FLAG7a0156230 [2024-10-13 01:12:46,397 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/17159e125/c26a3385c7594f0fbfc0af84c00fbcc4 [2024-10-13 01:12:46,399 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-13 01:12:46,401 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-13 01:12:46,402 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-13 01:12:46,402 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-13 01:12:46,409 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-13 01:12:46,410 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,411 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44ddb761 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46, skipping insertion in model container [2024-10-13 01:12:46,411 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,443 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-13 01:12:46,612 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-95.i[915,928] [2024-10-13 01:12:46,703 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 01:12:46,718 INFO L200 MainTranslator]: Completed pre-run [2024-10-13 01:12:46,731 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-25_file-95.i[915,928] [2024-10-13 01:12:46,779 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-13 01:12:46,803 INFO L204 MainTranslator]: Completed translation [2024-10-13 01:12:46,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46 WrapperNode [2024-10-13 01:12:46,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-13 01:12:46,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-13 01:12:46,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-13 01:12:46,806 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-13 01:12:46,812 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,824 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,864 INFO L138 Inliner]: procedures = 26, calls = 47, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 225 [2024-10-13 01:12:46,865 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-13 01:12:46,866 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-13 01:12:46,866 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-13 01:12:46,866 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-13 01:12:46,879 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,879 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,883 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,909 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]. [2024-10-13 01:12:46,910 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,910 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,919 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,923 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,925 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,927 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,931 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-13 01:12:46,932 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-13 01:12:46,932 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-13 01:12:46,932 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-13 01:12:46,933 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (1/1) ... [2024-10-13 01:12:46,938 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-13 01:12:46,957 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-13 01:12:46,974 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) [2024-10-13 01:12:46,977 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 [2024-10-13 01:12:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-13 01:12:47,022 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-13 01:12:47,023 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-13 01:12:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-13 01:12:47,023 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-13 01:12:47,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-13 01:12:47,126 INFO L238 CfgBuilder]: Building ICFG [2024-10-13 01:12:47,128 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-13 01:12:47,585 INFO L? ?]: Removed 13 outVars from TransFormulas that were not future-live. [2024-10-13 01:12:47,585 INFO L287 CfgBuilder]: Performing block encoding [2024-10-13 01:12:47,622 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-13 01:12:47,622 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-13 01:12:47,623 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:12:47 BoogieIcfgContainer [2024-10-13 01:12:47,623 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-13 01:12:47,627 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-13 01:12:47,627 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-13 01:12:47,630 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-13 01:12:47,631 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 01:12:46" (1/3) ... [2024-10-13 01:12:47,631 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cb9144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:12:47, skipping insertion in model container [2024-10-13 01:12:47,632 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 01:12:46" (2/3) ... [2024-10-13 01:12:47,632 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@76cb9144 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 01:12:47, skipping insertion in model container [2024-10-13 01:12:47,633 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 01:12:47" (3/3) ... [2024-10-13 01:12:47,634 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-25_file-95.i [2024-10-13 01:12:47,650 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-13 01:12:47,650 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-13 01:12:47,710 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-13 01:12:47,723 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;@7aad0a2a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-13 01:12:47,724 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-13 01:12:47,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 94 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 58 states have internal predecessors, (84), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-13 01:12:47,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-10-13 01:12:47,750 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 01:12:47,752 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 01:12:47,752 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 01:12:47,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 01:12:47,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1281962238, now seen corresponding path program 1 times [2024-10-13 01:12:47,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 01:12:47,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301933860] [2024-10-13 01:12:47,767 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:12:47,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 01:12:47,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-13 01:12:48,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-10-13 01:12:48,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-13 01:12:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-13 01:12:48,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-10-13 01:12:48,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-10-13 01:12:48,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-10-13 01:12:48,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-10-13 01:12:48,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-10-13 01:12:48,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,170 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-10-13 01:12:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2024-10-13 01:12:48,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-10-13 01:12:48,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-13 01:12:48,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,203 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-10-13 01:12:48,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,211 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2024-10-13 01:12:48,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,219 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2024-10-13 01:12:48,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2024-10-13 01:12:48,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2024-10-13 01:12:48,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2024-10-13 01:12:48,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2024-10-13 01:12:48,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2024-10-13 01:12:48,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-13 01:12:48,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,255 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2024-10-13 01:12:48,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2024-10-13 01:12:48,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,269 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2024-10-13 01:12:48,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2024-10-13 01:12:48,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2024-10-13 01:12:48,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,282 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2024-10-13 01:12:48,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-10-13 01:12:48,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 163 [2024-10-13 01:12:48,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,295 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-10-13 01:12:48,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2024-10-13 01:12:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,307 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2024-10-13 01:12:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-10-13 01:12:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-13 01:12:48,316 INFO L134 CoverageAnalysis]: Checked inductivity of 2244 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2244 trivial. 0 not checked. [2024-10-13 01:12:48,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-13 01:12:48,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301933860] [2024-10-13 01:12:48,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301933860] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-13 01:12:48,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-13 01:12:48,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-13 01:12:48,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117192838] [2024-10-13 01:12:48,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-13 01:12:48,327 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-13 01:12:48,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-13 01:12:48,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-13 01:12:48,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 01:12:48,358 INFO L87 Difference]: Start difference. First operand has 94 states, 57 states have (on average 1.4736842105263157) internal successors, (84), 58 states have internal predecessors, (84), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) Second operand has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-13 01:12:48,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-13 01:12:48,410 INFO L93 Difference]: Finished difference Result 184 states and 334 transitions. [2024-10-13 01:12:48,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-13 01:12:48,414 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) Word has length 209 [2024-10-13 01:12:48,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-13 01:12:48,423 INFO L225 Difference]: With dead ends: 184 [2024-10-13 01:12:48,423 INFO L226 Difference]: Without dead ends: 91 [2024-10-13 01:12:48,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-13 01:12:48,430 INFO L432 NwaCegarLoop]: 141 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, 141 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 [2024-10-13 01:12:48,431 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 141 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-13 01:12:48,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2024-10-13 01:12:48,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2024-10-13 01:12:48,472 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 55 states have (on average 1.3818181818181818) internal successors, (76), 55 states have internal predecessors, (76), 34 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 34 states have call predecessors, (34), 34 states have call successors, (34) [2024-10-13 01:12:48,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 144 transitions. [2024-10-13 01:12:48,477 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 144 transitions. Word has length 209 [2024-10-13 01:12:48,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-13 01:12:48,477 INFO L471 AbstractCegarLoop]: Abstraction has 91 states and 144 transitions. [2024-10-13 01:12:48,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 21.0) internal successors, (42), 2 states have internal predecessors, (42), 2 states have call successors, (34), 1 states have call predecessors, (34), 1 states have return successors, (34), 1 states have call predecessors, (34), 2 states have call successors, (34) [2024-10-13 01:12:48,478 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 144 transitions. [2024-10-13 01:12:48,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2024-10-13 01:12:48,482 INFO L207 NwaCegarLoop]: Found error trace [2024-10-13 01:12:48,484 INFO L215 NwaCegarLoop]: trace histogram [34, 34, 34, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-13 01:12:48,485 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-13 01:12:48,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-13 01:12:48,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-13 01:12:48,486 INFO L85 PathProgramCache]: Analyzing trace with hash 534209478, now seen corresponding path program 1 times [2024-10-13 01:12:48,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-13 01:12:48,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134079528] [2024-10-13 01:12:48,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-13 01:12:48,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-13 01:12:48,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat