./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-86.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc 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_fillercodesize_ps-cn-10_file-86.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 517783448a287c62461a35f1bc15cb8b62fca77248cd9526eca120bea485e50a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 19:26:58,020 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 19:26:58,069 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 19:26:58,075 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 19:26:58,077 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 19:26:58,101 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 19:26:58,102 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 19:26:58,102 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 19:26:58,103 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 19:26:58,104 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 19:26:58,105 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 19:26:58,105 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 19:26:58,106 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 19:26:58,106 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 19:26:58,107 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 19:26:58,108 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 19:26:58,108 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 19:26:58,108 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 19:26:58,108 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 19:26:58,109 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 19:26:58,109 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 19:26:58,109 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 19:26:58,110 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 19:26:58,110 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 19:26:58,110 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 19:26:58,110 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 19:26:58,110 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 19:26:58,110 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 19:26:58,111 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 19:26:58,111 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 19:26:58,111 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 19:26:58,111 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 19:26:58,111 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:26:58,112 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 19:26:58,112 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 19:26:58,112 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 19:26:58,113 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 19:26:58,114 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 19:26:58,114 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 19:26:58,114 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 19:26:58,114 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 19:26:58,115 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 19:26:58,115 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 517783448a287c62461a35f1bc15cb8b62fca77248cd9526eca120bea485e50a [2024-11-18 19:26:58,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 19:26:58,350 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 19:26:58,353 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 19:26:58,354 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 19:26:58,355 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 19:26:58,356 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-86.i [2024-11-18 19:26:59,750 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 19:26:59,964 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 19:26:59,965 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-86.i [2024-11-18 19:26:59,980 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc898a8e4/a90e734ace5d40c0958b0a19260c6a51/FLAG3753b44a9 [2024-11-18 19:27:00,010 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bc898a8e4/a90e734ace5d40c0958b0a19260c6a51 [2024-11-18 19:27:00,014 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 19:27:00,016 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 19:27:00,017 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 19:27:00,019 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 19:27:00,023 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 19:27:00,024 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,024 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@307f4606 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00, skipping insertion in model container [2024-11-18 19:27:00,025 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,048 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 19:27:00,172 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_fillercodesize_ps-cn-10_file-86.i[915,928] [2024-11-18 19:27:00,231 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:27:00,247 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 19:27:00,256 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_fillercodesize_ps-cn-10_file-86.i[915,928] [2024-11-18 19:27:00,278 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 19:27:00,303 INFO L204 MainTranslator]: Completed translation [2024-11-18 19:27:00,304 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00 WrapperNode [2024-11-18 19:27:00,304 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 19:27:00,305 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 19:27:00,305 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 19:27:00,305 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 19:27:00,318 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,326 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,357 INFO L138 Inliner]: procedures = 26, calls = 41, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 183 [2024-11-18 19:27:00,358 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 19:27:00,358 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 19:27:00,358 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 19:27:00,358 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 19:27:00,370 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,370 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,373 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,402 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]. [2024-11-18 19:27:00,406 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,407 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,419 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,425 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,427 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,428 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,435 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 19:27:00,439 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 19:27:00,439 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 19:27:00,439 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 19:27:00,440 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (1/1) ... [2024-11-18 19:27:00,445 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 19:27:00,454 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:27:00,471 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) [2024-11-18 19:27:00,479 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 [2024-11-18 19:27:00,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 19:27:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 19:27:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 19:27:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 19:27:00,514 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 19:27:00,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 19:27:00,599 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 19:27:00,601 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 19:27:00,988 INFO L? ?]: Removed 20 outVars from TransFormulas that were not future-live. [2024-11-18 19:27:00,989 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 19:27:01,002 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 19:27:01,003 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 19:27:01,003 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:27:01 BoogieIcfgContainer [2024-11-18 19:27:01,004 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 19:27:01,006 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 19:27:01,007 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 19:27:01,009 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 19:27:01,009 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 07:27:00" (1/3) ... [2024-11-18 19:27:01,010 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56757d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:27:01, skipping insertion in model container [2024-11-18 19:27:01,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 07:27:00" (2/3) ... [2024-11-18 19:27:01,011 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56757d25 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 07:27:01, skipping insertion in model container [2024-11-18 19:27:01,011 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 07:27:01" (3/3) ... [2024-11-18 19:27:01,013 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-86.i [2024-11-18 19:27:01,026 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 19:27:01,026 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 19:27:01,074 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 19:27:01,079 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;@3e62decb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 19:27:01,079 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 19:27:01,084 INFO L276 IsEmpty]: Start isEmpty. Operand has 77 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 47 states have internal predecessors, (62), 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) [2024-11-18 19:27:01,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-18 19:27:01,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:01,101 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] [2024-11-18 19:27:01,101 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:01,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:01,107 INFO L85 PathProgramCache]: Analyzing trace with hash -1316799682, now seen corresponding path program 1 times [2024-11-18 19:27:01,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:01,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121534266] [2024-11-18 19:27:01,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:01,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:01,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:01,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 54 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2024-11-18 19:27:01,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:27:01,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2121534266] [2024-11-18 19:27:01,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2121534266] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-18 19:27:01,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [399655548] [2024-11-18 19:27:01,526 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:01,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-18 19:27:01,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 19:27:01,529 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-18 19:27:01,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-18 19:27:01,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:01,684 INFO L255 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-18 19:27:01,692 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-18 19:27:01,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 54 proven. 0 refuted. 0 times theorem prover too weak. 1458 trivial. 0 not checked. [2024-11-18 19:27:01,721 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-18 19:27:01,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [399655548] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:27:01,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-18 19:27:01,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-18 19:27:01,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794502639] [2024-11-18 19:27:01,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:27:01,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 19:27:01,728 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:27:01,748 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 19:27:01,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:27:01,750 INFO L87 Difference]: Start difference. First operand has 77 states, 46 states have (on average 1.3478260869565217) internal successors, (62), 47 states have internal predecessors, (62), 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 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-18 19:27:01,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:27:01,775 INFO L93 Difference]: Finished difference Result 147 states and 258 transitions. [2024-11-18 19:27:01,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 19:27:01,777 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (28), 2 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 175 [2024-11-18 19:27:01,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:27:01,782 INFO L225 Difference]: With dead ends: 147 [2024-11-18 19:27:01,782 INFO L226 Difference]: Without dead ends: 73 [2024-11-18 19:27:01,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 176 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 19:27:01,803 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 111 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:27:01,804 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:27:01,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-18 19:27:01,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-18 19:27:01,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 43 states have (on average 1.2790697674418605) internal successors, (55), 43 states have internal predecessors, (55), 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) [2024-11-18 19:27:01,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 111 transitions. [2024-11-18 19:27:01,899 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 111 transitions. Word has length 175 [2024-11-18 19:27:01,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:27:01,902 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 111 transitions. [2024-11-18 19:27:01,902 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 20.0) internal successors, (40), 2 states have internal predecessors, (40), 2 states have call successors, (28), 2 states have call predecessors, (28), 1 states have return successors, (28), 1 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-18 19:27:01,902 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 111 transitions. [2024-11-18 19:27:01,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-18 19:27:01,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:01,907 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] [2024-11-18 19:27:01,923 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-18 19:27:02,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-18 19:27:02,112 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:02,113 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:02,114 INFO L85 PathProgramCache]: Analyzing trace with hash 436793602, now seen corresponding path program 1 times [2024-11-18 19:27:02,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:02,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269561158] [2024-11-18 19:27:02,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:02,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:02,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:02,532 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:27:02,535 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:27:02,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269561158] [2024-11-18 19:27:02,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269561158] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:27:02,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:27:02,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 19:27:02,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291693113] [2024-11-18 19:27:02,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:27:02,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 19:27:02,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:27:02,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 19:27:02,539 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 19:27:02,539 INFO L87 Difference]: Start difference. First operand 73 states and 111 transitions. Second operand has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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) [2024-11-18 19:27:02,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:27:02,776 INFO L93 Difference]: Finished difference Result 214 states and 328 transitions. [2024-11-18 19:27:02,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 19:27:02,777 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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 175 [2024-11-18 19:27:02,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:27:02,779 INFO L225 Difference]: With dead ends: 214 [2024-11-18 19:27:02,779 INFO L226 Difference]: Without dead ends: 144 [2024-11-18 19:27:02,780 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-18 19:27:02,781 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 78 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 166 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 19:27:02,782 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 357 Invalid, 166 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 19:27:02,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-18 19:27:02,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 124. [2024-11-18 19:27:02,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 65 states have (on average 1.2) internal successors, (78), 65 states have internal predecessors, (78), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-18 19:27:02,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 190 transitions. [2024-11-18 19:27:02,803 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 190 transitions. Word has length 175 [2024-11-18 19:27:02,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:27:02,804 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 190 transitions. [2024-11-18 19:27:02,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.6) internal successors, (38), 5 states have internal predecessors, (38), 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) [2024-11-18 19:27:02,805 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 190 transitions. [2024-11-18 19:27:02,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-18 19:27:02,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:02,807 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] [2024-11-18 19:27:02,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 19:27:02,807 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:02,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:02,808 INFO L85 PathProgramCache]: Analyzing trace with hash -574323648, now seen corresponding path program 1 times [2024-11-18 19:27:02,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:02,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1247300472] [2024-11-18 19:27:02,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:02,809 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:02,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:09,468 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:27:09,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:27:09,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1247300472] [2024-11-18 19:27:09,469 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1247300472] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:27:09,469 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:27:09,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-18 19:27:09,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [266664768] [2024-11-18 19:27:09,470 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:27:09,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-18 19:27:09,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:27:09,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-18 19:27:09,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2024-11-18 19:27:09,473 INFO L87 Difference]: Start difference. First operand 124 states and 190 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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) [2024-11-18 19:27:13,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:27:13,455 INFO L93 Difference]: Finished difference Result 270 states and 404 transitions. [2024-11-18 19:27:13,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-18 19:27:13,456 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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 175 [2024-11-18 19:27:13,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:27:13,459 INFO L225 Difference]: With dead ends: 270 [2024-11-18 19:27:13,459 INFO L226 Difference]: Without dead ends: 200 [2024-11-18 19:27:13,465 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=168, Invalid=482, Unknown=0, NotChecked=0, Total=650 [2024-11-18 19:27:13,466 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 222 mSDsluCounter, 653 mSDsCounter, 0 mSdLazyCounter, 697 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 222 SdHoareTripleChecker+Valid, 750 SdHoareTripleChecker+Invalid, 786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 697 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-18 19:27:13,466 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [222 Valid, 750 Invalid, 786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 697 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-18 19:27:13,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 200 states. [2024-11-18 19:27:13,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 200 to 141. [2024-11-18 19:27:13,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 82 states have (on average 1.2317073170731707) internal successors, (101), 82 states have internal predecessors, (101), 56 states have call successors, (56), 2 states have call predecessors, (56), 2 states have return successors, (56), 56 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-18 19:27:13,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 213 transitions. [2024-11-18 19:27:13,490 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 213 transitions. Word has length 175 [2024-11-18 19:27:13,491 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:27:13,491 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 213 transitions. [2024-11-18 19:27:13,491 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 14 states have internal predecessors, (38), 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) [2024-11-18 19:27:13,491 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 213 transitions. [2024-11-18 19:27:13,495 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-11-18 19:27:13,496 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:13,496 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] [2024-11-18 19:27:13,496 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 19:27:13,497 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:13,497 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:13,498 INFO L85 PathProgramCache]: Analyzing trace with hash 126740930, now seen corresponding path program 1 times [2024-11-18 19:27:13,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:13,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613171066] [2024-11-18 19:27:13,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:13,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:13,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:13,579 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:27:13,580 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:27:13,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613171066] [2024-11-18 19:27:13,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613171066] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:27:13,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:27:13,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 19:27:13,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745545659] [2024-11-18 19:27:13,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:27:13,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 19:27:13,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:27:13,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 19:27:13,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:27:13,586 INFO L87 Difference]: Start difference. First operand 141 states and 213 transitions. Second operand has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-18 19:27:13,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:27:13,629 INFO L93 Difference]: Finished difference Result 280 states and 427 transitions. [2024-11-18 19:27:13,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 19:27:13,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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 175 [2024-11-18 19:27:13,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:27:13,634 INFO L225 Difference]: With dead ends: 280 [2024-11-18 19:27:13,635 INFO L226 Difference]: Without dead ends: 210 [2024-11-18 19:27:13,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 19:27:13,637 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 103 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 222 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:27:13,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 222 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:27:13,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 210 states. [2024-11-18 19:27:13,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 210 to 208. [2024-11-18 19:27:13,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 120 states have (on average 1.225) internal successors, (147), 120 states have internal predecessors, (147), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-18 19:27:13,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 315 transitions. [2024-11-18 19:27:13,673 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 315 transitions. Word has length 175 [2024-11-18 19:27:13,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:27:13,674 INFO L471 AbstractCegarLoop]: Abstraction has 208 states and 315 transitions. [2024-11-18 19:27:13,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.666666666666666) internal successors, (38), 3 states have internal predecessors, (38), 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) [2024-11-18 19:27:13,675 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 315 transitions. [2024-11-18 19:27:13,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-18 19:27:13,680 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:13,680 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] [2024-11-18 19:27:13,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 19:27:13,680 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:13,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:13,681 INFO L85 PathProgramCache]: Analyzing trace with hash -570662079, now seen corresponding path program 1 times [2024-11-18 19:27:13,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:13,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566250611] [2024-11-18 19:27:13,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:13,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:13,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:16,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:27:16,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:27:16,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566250611] [2024-11-18 19:27:16,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566250611] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:27:16,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:27:16,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 19:27:16,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1181142998] [2024-11-18 19:27:16,991 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:27:16,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 19:27:16,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:27:16,992 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 19:27:16,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:27:16,992 INFO L87 Difference]: Start difference. First operand 208 states and 315 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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) [2024-11-18 19:27:17,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:27:17,783 INFO L93 Difference]: Finished difference Result 258 states and 373 transitions. [2024-11-18 19:27:17,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 19:27:17,784 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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 176 [2024-11-18 19:27:17,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:27:17,787 INFO L225 Difference]: With dead ends: 258 [2024-11-18 19:27:17,789 INFO L226 Difference]: Without dead ends: 256 [2024-11-18 19:27:17,790 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=191, Invalid=565, Unknown=0, NotChecked=0, Total=756 [2024-11-18 19:27:17,791 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 254 mSDsluCounter, 589 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 388 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:27:17,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 691 Invalid, 388 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 19:27:17,792 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2024-11-18 19:27:17,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 209. [2024-11-18 19:27:17,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.2231404958677685) internal successors, (148), 121 states have internal predecessors, (148), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-18 19:27:17,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 316 transitions. [2024-11-18 19:27:17,822 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 316 transitions. Word has length 176 [2024-11-18 19:27:17,822 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:27:17,823 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 316 transitions. [2024-11-18 19:27:17,823 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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) [2024-11-18 19:27:17,823 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 316 transitions. [2024-11-18 19:27:17,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-18 19:27:17,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:17,824 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] [2024-11-18 19:27:17,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 19:27:17,825 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:17,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:17,826 INFO L85 PathProgramCache]: Analyzing trace with hash 992187869, now seen corresponding path program 1 times [2024-11-18 19:27:17,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:17,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2071258967] [2024-11-18 19:27:17,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:17,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:17,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:20,205 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:27:20,206 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:27:20,206 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2071258967] [2024-11-18 19:27:20,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2071258967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:27:20,209 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:27:20,209 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 19:27:20,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731222122] [2024-11-18 19:27:20,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:27:20,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 19:27:20,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:27:20,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 19:27:20,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:27:20,214 INFO L87 Difference]: Start difference. First operand 209 states and 316 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) [2024-11-18 19:27:21,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:27:21,137 INFO L93 Difference]: Finished difference Result 268 states and 384 transitions. [2024-11-18 19:27:21,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-18 19:27:21,140 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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 176 [2024-11-18 19:27:21,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:27:21,142 INFO L225 Difference]: With dead ends: 268 [2024-11-18 19:27:21,143 INFO L226 Difference]: Without dead ends: 266 [2024-11-18 19:27:21,144 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=212, Invalid=600, Unknown=0, NotChecked=0, Total=812 [2024-11-18 19:27:21,146 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 368 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 368 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 19:27:21,146 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [368 Valid, 635 Invalid, 603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 19:27:21,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-18 19:27:21,167 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 211. [2024-11-18 19:27:21,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 211 states, 123 states have (on average 1.2276422764227641) internal successors, (151), 123 states have internal predecessors, (151), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-18 19:27:21,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 211 states to 211 states and 319 transitions. [2024-11-18 19:27:21,173 INFO L78 Accepts]: Start accepts. Automaton has 211 states and 319 transitions. Word has length 176 [2024-11-18 19:27:21,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:27:21,176 INFO L471 AbstractCegarLoop]: Abstraction has 211 states and 319 transitions. [2024-11-18 19:27:21,177 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) [2024-11-18 19:27:21,177 INFO L276 IsEmpty]: Start isEmpty. Operand 211 states and 319 transitions. [2024-11-18 19:27:21,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-18 19:27:21,178 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:21,178 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] [2024-11-18 19:27:21,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 19:27:21,178 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:21,178 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:21,178 INFO L85 PathProgramCache]: Analyzing trace with hash -782819493, now seen corresponding path program 1 times [2024-11-18 19:27:21,178 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:21,178 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87303408] [2024-11-18 19:27:21,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:21,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:21,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:27:21,448 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:27:21,448 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87303408] [2024-11-18 19:27:21,448 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87303408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:27:21,448 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:27:21,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-18 19:27:21,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264085091] [2024-11-18 19:27:21,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:27:21,450 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-18 19:27:21,450 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:27:21,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-18 19:27:21,451 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:27:21,451 INFO L87 Difference]: Start difference. First operand 211 states and 319 transitions. Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-18 19:27:21,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:27:21,493 INFO L93 Difference]: Finished difference Result 358 states and 542 transitions. [2024-11-18 19:27:21,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-18 19:27:21,494 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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 176 [2024-11-18 19:27:21,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:27:21,495 INFO L225 Difference]: With dead ends: 358 [2024-11-18 19:27:21,495 INFO L226 Difference]: Without dead ends: 218 [2024-11-18 19:27:21,496 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-18 19:27:21,496 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 6 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:27:21,497 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 213 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 19:27:21,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2024-11-18 19:27:21,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 209. [2024-11-18 19:27:21,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 209 states, 121 states have (on average 1.1983471074380165) internal successors, (145), 121 states have internal predecessors, (145), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-18 19:27:21,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209 states to 209 states and 313 transitions. [2024-11-18 19:27:21,521 INFO L78 Accepts]: Start accepts. Automaton has 209 states and 313 transitions. Word has length 176 [2024-11-18 19:27:21,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:27:21,525 INFO L471 AbstractCegarLoop]: Abstraction has 209 states and 313 transitions. [2024-11-18 19:27:21,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 4 states have internal predecessors, (39), 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) [2024-11-18 19:27:21,525 INFO L276 IsEmpty]: Start isEmpty. Operand 209 states and 313 transitions. [2024-11-18 19:27:21,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-18 19:27:21,526 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:21,526 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] [2024-11-18 19:27:21,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 19:27:21,527 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:21,527 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:21,527 INFO L85 PathProgramCache]: Analyzing trace with hash 548065146, now seen corresponding path program 1 times [2024-11-18 19:27:21,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:21,527 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221081249] [2024-11-18 19:27:21,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:21,527 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:21,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:27,245 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:27:27,245 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:27:27,245 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221081249] [2024-11-18 19:27:27,246 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221081249] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:27:27,246 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:27:27,246 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-18 19:27:27,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594578254] [2024-11-18 19:27:27,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:27:27,246 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-18 19:27:27,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:27:27,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-18 19:27:27,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=158, Unknown=0, NotChecked=0, Total=210 [2024-11-18 19:27:27,248 INFO L87 Difference]: Start difference. First operand 209 states and 313 transitions. Second operand has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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) [2024-11-18 19:27:32,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:27:32,382 INFO L93 Difference]: Finished difference Result 279 states and 392 transitions. [2024-11-18 19:27:32,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 19:27:32,382 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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 176 [2024-11-18 19:27:32,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:27:32,384 INFO L225 Difference]: With dead ends: 279 [2024-11-18 19:27:32,384 INFO L226 Difference]: Without dead ends: 277 [2024-11-18 19:27:32,385 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=262, Invalid=668, Unknown=0, NotChecked=0, Total=930 [2024-11-18 19:27:32,385 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 277 mSDsluCounter, 501 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 277 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-18 19:27:32,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [277 Valid, 598 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-18 19:27:32,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2024-11-18 19:27:32,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 219. [2024-11-18 19:27:32,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 131 states have (on average 1.2061068702290076) internal successors, (158), 131 states have internal predecessors, (158), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-18 19:27:32,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 326 transitions. [2024-11-18 19:27:32,398 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 326 transitions. Word has length 176 [2024-11-18 19:27:32,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:27:32,399 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 326 transitions. [2024-11-18 19:27:32,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.6) internal successors, (39), 15 states have internal predecessors, (39), 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) [2024-11-18 19:27:32,399 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 326 transitions. [2024-11-18 19:27:32,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2024-11-18 19:27:32,400 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:32,400 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] [2024-11-18 19:27:32,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 19:27:32,400 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:32,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:32,401 INFO L85 PathProgramCache]: Analyzing trace with hash 1228123516, now seen corresponding path program 1 times [2024-11-18 19:27:32,401 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:32,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131910805] [2024-11-18 19:27:32,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:32,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:32,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:38,876 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:27:38,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:27:38,877 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131910805] [2024-11-18 19:27:38,877 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1131910805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:27:38,877 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:27:38,877 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 19:27:38,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [949056254] [2024-11-18 19:27:38,878 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:27:38,878 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 19:27:38,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:27:38,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 19:27:38,879 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=178, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:27:38,879 INFO L87 Difference]: Start difference. First operand 219 states and 326 transitions. Second operand has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) [2024-11-18 19:27:44,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:27:44,440 INFO L93 Difference]: Finished difference Result 273 states and 386 transitions. [2024-11-18 19:27:44,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-18 19:27:44,440 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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 176 [2024-11-18 19:27:44,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:27:44,442 INFO L225 Difference]: With dead ends: 273 [2024-11-18 19:27:44,442 INFO L226 Difference]: Without dead ends: 271 [2024-11-18 19:27:44,443 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=281, Invalid=711, Unknown=0, NotChecked=0, Total=992 [2024-11-18 19:27:44,443 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 208 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 739 SdHoareTripleChecker+Invalid, 681 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:27:44,443 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [208 Valid, 739 Invalid, 681 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 19:27:44,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-18 19:27:44,454 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 219. [2024-11-18 19:27:44,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 219 states, 131 states have (on average 1.2061068702290076) internal successors, (158), 131 states have internal predecessors, (158), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-18 19:27:44,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 219 states to 219 states and 326 transitions. [2024-11-18 19:27:44,456 INFO L78 Accepts]: Start accepts. Automaton has 219 states and 326 transitions. Word has length 176 [2024-11-18 19:27:44,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:27:44,456 INFO L471 AbstractCegarLoop]: Abstraction has 219 states and 326 transitions. [2024-11-18 19:27:44,457 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.4375) internal successors, (39), 16 states have internal predecessors, (39), 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) [2024-11-18 19:27:44,457 INFO L276 IsEmpty]: Start isEmpty. Operand 219 states and 326 transitions. [2024-11-18 19:27:44,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-18 19:27:44,459 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:44,459 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] [2024-11-18 19:27:44,459 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 19:27:44,459 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:44,460 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:44,460 INFO L85 PathProgramCache]: Analyzing trace with hash 746554692, now seen corresponding path program 1 times [2024-11-18 19:27:44,460 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:44,460 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [456166075] [2024-11-18 19:27:44,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:44,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:44,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:27:49,306 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:27:49,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:27:49,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [456166075] [2024-11-18 19:27:49,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [456166075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:27:49,307 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:27:49,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-18 19:27:49,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395663901] [2024-11-18 19:27:49,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:27:49,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-18 19:27:49,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:27:49,308 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-18 19:27:49,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=182, Unknown=0, NotChecked=0, Total=240 [2024-11-18 19:27:49,309 INFO L87 Difference]: Start difference. First operand 219 states and 326 transitions. Second operand has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 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) [2024-11-18 19:27:52,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:27:52,380 INFO L93 Difference]: Finished difference Result 261 states and 372 transitions. [2024-11-18 19:27:52,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-18 19:27:52,381 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 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 177 [2024-11-18 19:27:52,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:27:52,383 INFO L225 Difference]: With dead ends: 261 [2024-11-18 19:27:52,383 INFO L226 Difference]: Without dead ends: 259 [2024-11-18 19:27:52,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=223, Invalid=647, Unknown=0, NotChecked=0, Total=870 [2024-11-18 19:27:52,384 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 246 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 538 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 631 SdHoareTripleChecker+Invalid, 652 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 538 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-18 19:27:52,384 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 631 Invalid, 652 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 538 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-18 19:27:52,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2024-11-18 19:27:52,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 216. [2024-11-18 19:27:52,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 128 states have (on average 1.203125) internal successors, (154), 128 states have internal predecessors, (154), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-18 19:27:52,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 322 transitions. [2024-11-18 19:27:52,397 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 322 transitions. Word has length 177 [2024-11-18 19:27:52,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:27:52,398 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 322 transitions. [2024-11-18 19:27:52,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.5) internal successors, (40), 16 states have internal predecessors, (40), 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) [2024-11-18 19:27:52,398 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 322 transitions. [2024-11-18 19:27:52,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-18 19:27:52,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:27:52,399 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] [2024-11-18 19:27:52,400 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 19:27:52,400 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:27:52,400 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:27:52,400 INFO L85 PathProgramCache]: Analyzing trace with hash -134500791, now seen corresponding path program 1 times [2024-11-18 19:27:52,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:27:52,401 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655641532] [2024-11-18 19:27:52,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:27:52,401 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:27:52,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:28:00,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:28:00,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:28:00,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655641532] [2024-11-18 19:28:00,099 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655641532] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:28:00,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:28:00,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 19:28:00,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366476653] [2024-11-18 19:28:00,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:28:00,099 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 19:28:00,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:28:00,100 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 19:28:00,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=208, Unknown=0, NotChecked=0, Total=272 [2024-11-18 19:28:00,100 INFO L87 Difference]: Start difference. First operand 216 states and 322 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 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) [2024-11-18 19:28:08,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:28:08,417 INFO L93 Difference]: Finished difference Result 274 states and 387 transitions. [2024-11-18 19:28:08,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-18 19:28:08,418 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 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 177 [2024-11-18 19:28:08,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:28:08,419 INFO L225 Difference]: With dead ends: 274 [2024-11-18 19:28:08,419 INFO L226 Difference]: Without dead ends: 272 [2024-11-18 19:28:08,420 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 222 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=315, Invalid=875, Unknown=0, NotChecked=0, Total=1190 [2024-11-18 19:28:08,420 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 263 mSDsluCounter, 543 mSDsCounter, 0 mSdLazyCounter, 541 mSolverCounterSat, 114 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 655 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 114 IncrementalHoareTripleChecker+Valid, 541 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-18 19:28:08,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 641 Invalid, 655 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [114 Valid, 541 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-18 19:28:08,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-18 19:28:08,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 221. [2024-11-18 19:28:08,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 221 states, 133 states have (on average 1.2105263157894737) internal successors, (161), 133 states have internal predecessors, (161), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-18 19:28:08,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 329 transitions. [2024-11-18 19:28:08,432 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 329 transitions. Word has length 177 [2024-11-18 19:28:08,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:28:08,432 INFO L471 AbstractCegarLoop]: Abstraction has 221 states and 329 transitions. [2024-11-18 19:28:08,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 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) [2024-11-18 19:28:08,432 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 329 transitions. [2024-11-18 19:28:08,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-18 19:28:08,433 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:28:08,433 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] [2024-11-18 19:28:08,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 19:28:08,433 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:28:08,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:28:08,433 INFO L85 PathProgramCache]: Analyzing trace with hash 1426502115, now seen corresponding path program 1 times [2024-11-18 19:28:08,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:28:08,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [615187280] [2024-11-18 19:28:08,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:28:08,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:28:08,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:28:13,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:28:13,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:28:13,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [615187280] [2024-11-18 19:28:13,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [615187280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:28:13,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:28:13,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 19:28:13,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1035896810] [2024-11-18 19:28:13,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:28:13,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 19:28:13,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:28:13,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 19:28:13,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=228, Unknown=0, NotChecked=0, Total=272 [2024-11-18 19:28:13,933 INFO L87 Difference]: Start difference. First operand 221 states and 329 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-18 19:28:19,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 19:28:19,470 INFO L93 Difference]: Finished difference Result 274 states and 387 transitions. [2024-11-18 19:28:19,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 19:28:19,470 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 177 [2024-11-18 19:28:19,471 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 19:28:19,472 INFO L225 Difference]: With dead ends: 274 [2024-11-18 19:28:19,472 INFO L226 Difference]: Without dead ends: 272 [2024-11-18 19:28:19,473 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=298, Invalid=824, Unknown=0, NotChecked=0, Total=1122 [2024-11-18 19:28:19,473 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 313 mSDsluCounter, 625 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 313 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-18 19:28:19,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [313 Valid, 719 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-18 19:28:19,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272 states. [2024-11-18 19:28:19,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272 to 222. [2024-11-18 19:28:19,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222 states, 134 states have (on average 1.208955223880597) internal successors, (162), 134 states have internal predecessors, (162), 84 states have call successors, (84), 3 states have call predecessors, (84), 3 states have return successors, (84), 84 states have call predecessors, (84), 84 states have call successors, (84) [2024-11-18 19:28:19,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 330 transitions. [2024-11-18 19:28:19,485 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 330 transitions. Word has length 177 [2024-11-18 19:28:19,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 19:28:19,486 INFO L471 AbstractCegarLoop]: Abstraction has 222 states and 330 transitions. [2024-11-18 19:28:19,486 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 2 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2024-11-18 19:28:19,486 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 330 transitions. [2024-11-18 19:28:19,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2024-11-18 19:28:19,487 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 19:28:19,487 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] [2024-11-18 19:28:19,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 19:28:19,487 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 19:28:19,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 19:28:19,487 INFO L85 PathProgramCache]: Analyzing trace with hash -527527801, now seen corresponding path program 1 times [2024-11-18 19:28:19,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 19:28:19,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876551393] [2024-11-18 19:28:19,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 19:28:19,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 19:28:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 19:28:26,738 INFO L134 CoverageAnalysis]: Checked inductivity of 1512 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1512 trivial. 0 not checked. [2024-11-18 19:28:26,742 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 19:28:26,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876551393] [2024-11-18 19:28:26,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876551393] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 19:28:26,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 19:28:26,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2024-11-18 19:28:26,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [473833496] [2024-11-18 19:28:26,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 19:28:26,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-11-18 19:28:26,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 19:28:26,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-11-18 19:28:26,744 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=202, Unknown=0, NotChecked=0, Total=272 [2024-11-18 19:28:26,744 INFO L87 Difference]: Start difference. First operand 222 states and 330 transitions. Second operand has 17 states, 17 states have (on average 2.3529411764705883) internal successors, (40), 17 states have internal predecessors, (40), 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)