./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-54.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-54.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 013cee657358eefc857795aa5f6e32aab15d5145c28e4306b26dd7ea01ffb375 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 08:05:40,641 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 08:05:40,701 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 08:05:40,705 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 08:05:40,706 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 08:05:40,728 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 08:05:40,728 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 08:05:40,729 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 08:05:40,729 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 08:05:40,730 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 08:05:40,731 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 08:05:40,731 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 08:05:40,731 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 08:05:40,732 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 08:05:40,733 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 08:05:40,733 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 08:05:40,734 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 08:05:40,734 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 08:05:40,734 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 08:05:40,734 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 08:05:40,734 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 08:05:40,737 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 08:05:40,738 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 08:05:40,738 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 08:05:40,738 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 08:05:40,738 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 08:05:40,738 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 08:05:40,739 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 08:05:40,739 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 08:05:40,739 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 08:05:40,739 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 08:05:40,740 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 08:05:40,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 08:05:40,740 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 08:05:40,741 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 08:05:40,741 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 08:05:40,741 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 08:05:40,741 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 08:05:40,741 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 08:05:40,742 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 08:05:40,742 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 08:05:40,742 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 08:05:40,742 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 013cee657358eefc857795aa5f6e32aab15d5145c28e4306b26dd7ea01ffb375 [2024-11-22 08:05:40,952 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 08:05:40,975 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 08:05:40,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 08:05:40,979 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 08:05:40,979 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 08:05:40,981 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-54.i [2024-11-22 08:05:42,240 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 08:05:42,425 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 08:05:42,425 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-54.i [2024-11-22 08:05:42,433 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abbd5770/7ea02629ed894844b4384e2e00994266/FLAG6a13b0d5b [2024-11-22 08:05:42,813 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2abbd5770/7ea02629ed894844b4384e2e00994266 [2024-11-22 08:05:42,815 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 08:05:42,817 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 08:05:42,818 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 08:05:42,818 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 08:05:42,823 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 08:05:42,824 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:05:42" (1/1) ... [2024-11-22 08:05:42,827 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ae1e786 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:42, skipping insertion in model container [2024-11-22 08:05:42,827 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 08:05:42" (1/1) ... [2024-11-22 08:05:42,859 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 08:05:43,014 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-54.i[919,932] [2024-11-22 08:05:43,115 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 08:05:43,132 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 08:05:43,141 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodestructure_filler-pe-ci_file-54.i[919,932] [2024-11-22 08:05:43,171 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 08:05:43,188 INFO L204 MainTranslator]: Completed translation [2024-11-22 08:05:43,189 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43 WrapperNode [2024-11-22 08:05:43,189 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 08:05:43,190 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 08:05:43,190 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 08:05:43,190 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 08:05:43,195 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,203 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,236 INFO L138 Inliner]: procedures = 26, calls = 38, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 199 [2024-11-22 08:05:43,237 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 08:05:43,237 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 08:05:43,237 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 08:05:43,238 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 08:05:43,246 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,253 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,265 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]. [2024-11-22 08:05:43,265 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,265 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,271 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,273 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,274 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,276 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,278 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 08:05:43,279 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 08:05:43,279 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 08:05:43,279 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 08:05:43,279 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (1/1) ... [2024-11-22 08:05:43,287 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 08:05:43,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 08:05:43,323 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) [2024-11-22 08:05:43,325 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 [2024-11-22 08:05:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 08:05:43,358 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 08:05:43,359 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 08:05:43,359 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 08:05:43,359 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 08:05:43,359 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 08:05:43,423 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 08:05:43,425 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 08:05:43,716 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-11-22 08:05:43,716 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 08:05:43,726 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 08:05:43,726 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 08:05:43,727 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:05:43 BoogieIcfgContainer [2024-11-22 08:05:43,727 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 08:05:43,728 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 08:05:43,728 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 08:05:43,731 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 08:05:43,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 08:05:42" (1/3) ... [2024-11-22 08:05:43,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6125a9a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:05:43, skipping insertion in model container [2024-11-22 08:05:43,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 08:05:43" (2/3) ... [2024-11-22 08:05:43,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6125a9a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 08:05:43, skipping insertion in model container [2024-11-22 08:05:43,732 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 08:05:43" (3/3) ... [2024-11-22 08:05:43,733 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodestructure_filler-pe-ci_file-54.i [2024-11-22 08:05:43,745 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 08:05:43,745 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 08:05:43,785 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 08:05:43,790 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;@474ed680, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 08:05:43,790 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 08:05:43,793 INFO L276 IsEmpty]: Start isEmpty. Operand has 85 states, 57 states have (on average 1.456140350877193) internal successors, (83), 58 states have internal predecessors, (83), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-22 08:05:43,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 08:05:43,803 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:43,804 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:43,804 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:43,808 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:43,808 INFO L85 PathProgramCache]: Analyzing trace with hash 756435362, now seen corresponding path program 1 times [2024-11-22 08:05:43,814 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:43,814 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384653478] [2024-11-22 08:05:43,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:43,815 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:43,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:44,113 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2024-11-22 08:05:44,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:44,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384653478] [2024-11-22 08:05:44,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384653478] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 08:05:44,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1598310410] [2024-11-22 08:05:44,116 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:44,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 08:05:44,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 08:05:44,118 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) [2024-11-22 08:05:44,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 08:05:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:44,278 INFO L255 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 08:05:44,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 08:05:44,311 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 48 proven. 0 refuted. 0 times theorem prover too weak. 1152 trivial. 0 not checked. [2024-11-22 08:05:44,312 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 08:05:44,312 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1598310410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:44,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 08:05:44,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 08:05:44,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069262477] [2024-11-22 08:05:44,315 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:44,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 08:05:44,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:44,335 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 08:05:44,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 08:05:44,337 INFO L87 Difference]: Start difference. First operand has 85 states, 57 states have (on average 1.456140350877193) internal successors, (83), 58 states have internal predecessors, (83), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) Second operand has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 08:05:44,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:44,359 INFO L93 Difference]: Finished difference Result 163 states and 285 transitions. [2024-11-22 08:05:44,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 08:05:44,362 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) Word has length 167 [2024-11-22 08:05:44,362 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:44,367 INFO L225 Difference]: With dead ends: 163 [2024-11-22 08:05:44,367 INFO L226 Difference]: Without dead ends: 81 [2024-11-22 08:05:44,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 168 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 08:05:44,373 INFO L432 NwaCegarLoop]: 126 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, 126 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 [2024-11-22 08:05:44,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 126 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 08:05:44,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-11-22 08:05:44,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-11-22 08:05:44,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 54 states have (on average 1.4074074074074074) internal successors, (76), 54 states have internal predecessors, (76), 25 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-22 08:05:44,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 126 transitions. [2024-11-22 08:05:44,410 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 126 transitions. Word has length 167 [2024-11-22 08:05:44,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:44,410 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 126 transitions. [2024-11-22 08:05:44,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 23.5) internal successors, (47), 2 states have internal predecessors, (47), 2 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 2 states have call successors, (25) [2024-11-22 08:05:44,410 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 126 transitions. [2024-11-22 08:05:44,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 08:05:44,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:44,413 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:44,421 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-22 08:05:44,614 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 [2024-11-22 08:05:44,615 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:44,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:44,616 INFO L85 PathProgramCache]: Analyzing trace with hash -1461536544, now seen corresponding path program 1 times [2024-11-22 08:05:44,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:44,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1240875103] [2024-11-22 08:05:44,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:44,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:44,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-22 08:05:44,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:44,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1240875103] [2024-11-22 08:05:44,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1240875103] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:44,916 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:44,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 08:05:44,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2138717503] [2024-11-22 08:05:44,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:44,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 08:05:44,918 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:44,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 08:05:44,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 08:05:44,919 INFO L87 Difference]: Start difference. First operand 81 states and 126 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-22 08:05:45,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:45,047 INFO L93 Difference]: Finished difference Result 200 states and 303 transitions. [2024-11-22 08:05:45,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 08:05:45,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-11-22 08:05:45,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:45,050 INFO L225 Difference]: With dead ends: 200 [2024-11-22 08:05:45,050 INFO L226 Difference]: Without dead ends: 122 [2024-11-22 08:05:45,051 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 08:05:45,052 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 69 mSDsluCounter, 197 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:45,053 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 319 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 08:05:45,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-22 08:05:45,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 99. [2024-11-22 08:05:45,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 99 states, 69 states have (on average 1.4057971014492754) internal successors, (97), 70 states have internal predecessors, (97), 27 states have call successors, (27), 2 states have call predecessors, (27), 2 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-22 08:05:45,066 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 99 states to 99 states and 151 transitions. [2024-11-22 08:05:45,066 INFO L78 Accepts]: Start accepts. Automaton has 99 states and 151 transitions. Word has length 167 [2024-11-22 08:05:45,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:45,067 INFO L471 AbstractCegarLoop]: Abstraction has 99 states and 151 transitions. [2024-11-22 08:05:45,067 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-22 08:05:45,067 INFO L276 IsEmpty]: Start isEmpty. Operand 99 states and 151 transitions. [2024-11-22 08:05:45,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-11-22 08:05:45,069 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:45,069 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:45,069 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 08:05:45,070 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:45,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:45,070 INFO L85 PathProgramCache]: Analyzing trace with hash -200664608, now seen corresponding path program 1 times [2024-11-22 08:05:45,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:45,070 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148340234] [2024-11-22 08:05:45,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:45,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:45,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-22 08:05:45,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:45,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148340234] [2024-11-22 08:05:45,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [148340234] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:45,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:45,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 08:05:45,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164907446] [2024-11-22 08:05:45,360 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:45,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 08:05:45,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:45,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 08:05:45,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 08:05:45,362 INFO L87 Difference]: Start difference. First operand 99 states and 151 transitions. Second operand has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-22 08:05:45,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:45,508 INFO L93 Difference]: Finished difference Result 289 states and 443 transitions. [2024-11-22 08:05:45,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 08:05:45,511 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 167 [2024-11-22 08:05:45,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:45,517 INFO L225 Difference]: With dead ends: 289 [2024-11-22 08:05:45,517 INFO L226 Difference]: Without dead ends: 193 [2024-11-22 08:05:45,518 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-22 08:05:45,519 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 87 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 76 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 76 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:45,520 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 361 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [76 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-22 08:05:45,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2024-11-22 08:05:45,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 150. [2024-11-22 08:05:45,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 150 states, 93 states have (on average 1.3010752688172043) internal successors, (121), 94 states have internal predecessors, (121), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-22 08:05:45,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 150 states to 150 states and 225 transitions. [2024-11-22 08:05:45,561 INFO L78 Accepts]: Start accepts. Automaton has 150 states and 225 transitions. Word has length 167 [2024-11-22 08:05:45,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:45,562 INFO L471 AbstractCegarLoop]: Abstraction has 150 states and 225 transitions. [2024-11-22 08:05:45,562 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.25) internal successors, (45), 4 states have internal predecessors, (45), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-22 08:05:45,562 INFO L276 IsEmpty]: Start isEmpty. Operand 150 states and 225 transitions. [2024-11-22 08:05:45,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 08:05:45,564 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:45,564 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:45,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 08:05:45,565 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:45,567 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:45,567 INFO L85 PathProgramCache]: Analyzing trace with hash 1833825476, now seen corresponding path program 1 times [2024-11-22 08:05:45,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:45,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871457360] [2024-11-22 08:05:45,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:45,568 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:45,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:45,855 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1200 trivial. 0 not checked. [2024-11-22 08:05:45,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:45,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871457360] [2024-11-22 08:05:45,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871457360] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 08:05:45,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 08:05:45,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-22 08:05:45,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639849671] [2024-11-22 08:05:45,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 08:05:45,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-22 08:05:45,859 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:45,860 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-22 08:05:45,860 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 08:05:45,860 INFO L87 Difference]: Start difference. First operand 150 states and 225 transitions. Second operand has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-22 08:05:45,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:45,916 INFO L93 Difference]: Finished difference Result 251 states and 382 transitions. [2024-11-22 08:05:45,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-22 08:05:45,917 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) Word has length 168 [2024-11-22 08:05:45,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:45,919 INFO L225 Difference]: With dead ends: 251 [2024-11-22 08:05:45,919 INFO L226 Difference]: Without dead ends: 155 [2024-11-22 08:05:45,920 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-22 08:05:45,920 INFO L432 NwaCegarLoop]: 119 mSDtfsCounter, 3 mSDsluCounter, 211 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:45,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 330 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 08:05:45,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-11-22 08:05:45,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 152. [2024-11-22 08:05:45,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 95 states have (on average 1.305263157894737) internal successors, (124), 96 states have internal predecessors, (124), 52 states have call successors, (52), 4 states have call predecessors, (52), 4 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-22 08:05:45,940 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 228 transitions. [2024-11-22 08:05:45,941 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 228 transitions. Word has length 168 [2024-11-22 08:05:45,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:45,941 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 228 transitions. [2024-11-22 08:05:45,941 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.5) internal successors, (46), 4 states have internal predecessors, (46), 1 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 1 states have call predecessors, (25), 1 states have call successors, (25) [2024-11-22 08:05:45,942 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 228 transitions. [2024-11-22 08:05:45,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 08:05:45,943 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:45,943 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:45,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 08:05:45,943 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:45,944 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:45,944 INFO L85 PathProgramCache]: Analyzing trace with hash -1781083450, now seen corresponding path program 1 times [2024-11-22 08:05:45,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:45,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864184002] [2024-11-22 08:05:45,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:45,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:46,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:46,197 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 27 proven. 45 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2024-11-22 08:05:46,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:05:46,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864184002] [2024-11-22 08:05:46,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864184002] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 08:05:46,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1876706844] [2024-11-22 08:05:46,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:46,198 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 08:05:46,198 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 08:05:46,201 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 08:05:46,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-22 08:05:46,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:46,341 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-22 08:05:46,350 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 08:05:46,578 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 582 proven. 45 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2024-11-22 08:05:46,578 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 08:05:46,795 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 27 proven. 45 refuted. 0 times theorem prover too weak. 1128 trivial. 0 not checked. [2024-11-22 08:05:46,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1876706844] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-22 08:05:46,795 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-22 08:05:46,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-22 08:05:46,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391434787] [2024-11-22 08:05:46,796 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-22 08:05:46,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-22 08:05:46,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:05:46,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-22 08:05:46,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-22 08:05:46,797 INFO L87 Difference]: Start difference. First operand 152 states and 228 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-22 08:05:47,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:05:47,007 INFO L93 Difference]: Finished difference Result 262 states and 389 transitions. [2024-11-22 08:05:47,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-22 08:05:47,008 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 168 [2024-11-22 08:05:47,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:05:47,010 INFO L225 Difference]: With dead ends: 262 [2024-11-22 08:05:47,010 INFO L226 Difference]: Without dead ends: 164 [2024-11-22 08:05:47,010 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 342 GetRequests, 333 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-11-22 08:05:47,012 INFO L432 NwaCegarLoop]: 113 mSDtfsCounter, 94 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 213 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 232 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 213 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 08:05:47,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 270 Invalid, 232 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 213 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 08:05:47,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 164 states. [2024-11-22 08:05:47,031 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 164 to 160. [2024-11-22 08:05:47,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 101 states have (on average 1.2673267326732673) internal successors, (128), 102 states have internal predecessors, (128), 52 states have call successors, (52), 6 states have call predecessors, (52), 6 states have return successors, (52), 51 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-22 08:05:47,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 232 transitions. [2024-11-22 08:05:47,033 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 232 transitions. Word has length 168 [2024-11-22 08:05:47,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:05:47,033 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 232 transitions. [2024-11-22 08:05:47,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-22 08:05:47,034 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 232 transitions. [2024-11-22 08:05:47,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 08:05:47,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:05:47,035 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:05:47,042 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-22 08:05:47,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 08:05:47,240 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:05:47,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:05:47,241 INFO L85 PathProgramCache]: Analyzing trace with hash 1704537220, now seen corresponding path program 1 times [2024-11-22 08:05:47,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:05:47,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421360290] [2024-11-22 08:05:47,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:47,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:05:47,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-22 08:05:47,339 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1166537272] [2024-11-22 08:05:47,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:05:47,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 08:05:47,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 08:05:47,342 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 08:05:47,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-22 08:05:47,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:05:47,506 INFO L255 TraceCheckSpWp]: Trace formula consists of 391 conjuncts, 58 conjuncts are in the unsatisfiable core [2024-11-22 08:05:47,512 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 08:05:56,708 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 715 proven. 312 refuted. 0 times theorem prover too weak. 173 trivial. 0 not checked. [2024-11-22 08:05:56,709 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 08:06:27,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:06:27,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421360290] [2024-11-22 08:06:27,018 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-22 08:06:27,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1166537272] [2024-11-22 08:06:27,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1166537272] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 08:06:27,018 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-22 08:06:27,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [30] total 30 [2024-11-22 08:06:27,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [805580149] [2024-11-22 08:06:27,019 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-22 08:06:27,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-22 08:06:27,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:06:27,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-22 08:06:27,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=338, Invalid=1468, Unknown=0, NotChecked=0, Total=1806 [2024-11-22 08:06:27,022 INFO L87 Difference]: Start difference. First operand 160 states and 232 transitions. Second operand has 30 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 28 states have internal predecessors, (79), 9 states have call successors, (25), 9 states have call predecessors, (25), 12 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) [2024-11-22 08:06:35,424 WARN L873 $PredicateComparison]: unable to prove that (let ((.cse3 (mod c_~var_1_17~0 4294967296)) (.cse6 (mod (+ c_~var_1_4~0 c_~var_1_8~0 c_~var_1_14~0) 4294967296))) (and (let ((.cse0 (mod c_~var_1_14~0 4294967296))) (or (exists ((~var_1_10~0 Int)) (and (<= .cse0 (mod (let ((.cse1 (mod c_~var_1_8~0 ~var_1_10~0))) (+ (* c_~var_1_14~0 .cse1) (* .cse1 8))) 4294967296)) (<= (+ ~var_1_10~0 1) 0))) (exists ((~var_1_10~0 Int)) (and (<= .cse0 (mod (let ((.cse2 (mod c_~var_1_8~0 ~var_1_10~0))) (+ (* c_~var_1_14~0 .cse2) (* .cse2 8))) 4294967296)) (<= 0 ~var_1_10~0) (<= ~var_1_10~0 32767) (not (= ~var_1_10~0 0)))))) (<= c_~var_1_4~0 16383) (<= 2147483647 .cse3) (let ((.cse5 (mod (+ c_~var_1_8~0 c_~var_1_14~0) 4294967296)) (.cse4 (<= c_~var_1_8~0 16383))) (or (and (<= (+ c_~var_1_8~0 1) c_~var_1_5~0) .cse4 (<= (+ (div (+ c_~var_1_8~0 .cse5 (- 4294967295)) 4294967296) 1) 0) (<= 2147467264 .cse5) (<= 2147483648 (+ .cse5 c_~var_1_5~0))) (and (<= (+ c_~var_1_8~0 .cse5) 4294967294) .cse4 (<= (+ (mod (+ c_~var_1_8~0 c_~var_1_14~0 2147500032) 4294967296) c_~var_1_5~0) 2147500029) (<= c_~var_1_5~0 16382)))) (<= 2147483647 .cse6) (<= c_~var_1_5~0 32766) (<= c_~var_1_10~0 32767) (not (= c_~var_1_4~0 c_~var_1_5~0)) (<= 0 c_~var_1_8~0) (not (= c_~var_1_10~0 0)) (<= .cse3 4294967294) (<= c_~var_1_8~0 (+ 31 c_~var_1_5~0)) (<= 0 (+ c_~var_1_5~0 1)) (<= .cse6 4294967294))) is different from true [2024-11-22 08:06:46,185 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-22 08:06:55,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:06:55,537 INFO L93 Difference]: Finished difference Result 551 states and 762 transitions. [2024-11-22 08:06:55,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-22 08:06:55,538 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 28 states have internal predecessors, (79), 9 states have call successors, (25), 9 states have call predecessors, (25), 12 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) Word has length 168 [2024-11-22 08:06:55,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:06:55,540 INFO L225 Difference]: With dead ends: 551 [2024-11-22 08:06:55,540 INFO L226 Difference]: Without dead ends: 449 [2024-11-22 08:06:55,542 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 258 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 820 ImplicationChecksByTransitivity, 34.2s TimeCoverageRelationStatistics Valid=569, Invalid=2404, Unknown=1, NotChecked=106, Total=3080 [2024-11-22 08:06:55,542 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 727 mSDsluCounter, 576 mSDsCounter, 0 mSdLazyCounter, 1360 mSolverCounterSat, 17 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 17.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 729 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 1406 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 1360 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 28 IncrementalHoareTripleChecker+Unchecked, 17.3s IncrementalHoareTripleChecker+Time [2024-11-22 08:06:55,542 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [729 Valid, 672 Invalid, 1406 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 1360 Invalid, 1 Unknown, 28 Unchecked, 17.3s Time] [2024-11-22 08:06:55,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 449 states. [2024-11-22 08:06:55,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 449 to 216. [2024-11-22 08:06:55,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 145 states have (on average 1.193103448275862) internal successors, (173), 145 states have internal predecessors, (173), 50 states have call successors, (50), 20 states have call predecessors, (50), 20 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-22 08:06:55,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 273 transitions. [2024-11-22 08:06:55,565 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 273 transitions. Word has length 168 [2024-11-22 08:06:55,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:06:55,567 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 273 transitions. [2024-11-22 08:06:55,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 2.6333333333333333) internal successors, (79), 28 states have internal predecessors, (79), 9 states have call successors, (25), 9 states have call predecessors, (25), 12 states have return successors, (25), 9 states have call predecessors, (25), 9 states have call successors, (25) [2024-11-22 08:06:55,568 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 273 transitions. [2024-11-22 08:06:55,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 08:06:55,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:06:55,570 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:06:55,577 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-22 08:06:55,772 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 08:06:55,773 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 08:06:55,773 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 08:06:55,773 INFO L85 PathProgramCache]: Analyzing trace with hash 1117731206, now seen corresponding path program 1 times [2024-11-22 08:06:55,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 08:06:55,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854800164] [2024-11-22 08:06:55,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:06:55,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 08:06:55,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:06:56,526 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 42 proven. 96 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2024-11-22 08:06:56,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 08:06:56,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854800164] [2024-11-22 08:06:56,527 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854800164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 08:06:56,527 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [441662150] [2024-11-22 08:06:56,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 08:06:56,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 08:06:56,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 08:06:56,528 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-22 08:06:56,530 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-22 08:06:56,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 08:06:56,624 INFO L255 TraceCheckSpWp]: Trace formula consists of 389 conjuncts, 34 conjuncts are in the unsatisfiable core [2024-11-22 08:06:56,629 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 08:06:57,662 INFO L134 CoverageAnalysis]: Checked inductivity of 1200 backedges. 683 proven. 195 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-11-22 08:06:57,662 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-22 08:07:03,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [441662150] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 08:07:03,698 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-22 08:07:03,698 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 18] total 26 [2024-11-22 08:07:03,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598734458] [2024-11-22 08:07:03,699 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-22 08:07:03,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-22 08:07:03,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 08:07:03,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-22 08:07:03,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=243, Invalid=1088, Unknown=1, NotChecked=0, Total=1332 [2024-11-22 08:07:03,700 INFO L87 Difference]: Start difference. First operand 216 states and 273 transitions. Second operand has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 25 states have internal predecessors, (96), 8 states have call successors, (49), 5 states have call predecessors, (49), 8 states have return successors, (49), 7 states have call predecessors, (49), 8 states have call successors, (49) [2024-11-22 08:07:21,705 WARN L286 SmtUtils]: Spent 16.53s on a formula simplification. DAG size of input: 95 DAG size of output: 66 (called from [L 388] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2024-11-22 08:07:22,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 08:07:22,736 INFO L93 Difference]: Finished difference Result 609 states and 819 transitions. [2024-11-22 08:07:22,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-22 08:07:22,737 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 25 states have internal predecessors, (96), 8 states have call successors, (49), 5 states have call predecessors, (49), 8 states have return successors, (49), 7 states have call predecessors, (49), 8 states have call successors, (49) Word has length 168 [2024-11-22 08:07:22,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 08:07:22,739 INFO L225 Difference]: With dead ends: 609 [2024-11-22 08:07:22,739 INFO L226 Difference]: Without dead ends: 479 [2024-11-22 08:07:22,740 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 236 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 910 ImplicationChecksByTransitivity, 23.3s TimeCoverageRelationStatistics Valid=741, Invalid=3164, Unknown=1, NotChecked=0, Total=3906 [2024-11-22 08:07:22,741 INFO L432 NwaCegarLoop]: 108 mSDtfsCounter, 1460 mSDsluCounter, 878 mSDsCounter, 0 mSdLazyCounter, 1957 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1461 SdHoareTripleChecker+Valid, 986 SdHoareTripleChecker+Invalid, 2013 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 1957 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-22 08:07:22,741 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1461 Valid, 986 Invalid, 2013 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 1957 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-22 08:07:22,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 479 states. [2024-11-22 08:07:22,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 479 to 240. [2024-11-22 08:07:22,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 240 states, 167 states have (on average 1.221556886227545) internal successors, (204), 167 states have internal predecessors, (204), 50 states have call successors, (50), 22 states have call predecessors, (50), 22 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-22 08:07:22,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 240 states to 240 states and 304 transitions. [2024-11-22 08:07:22,765 INFO L78 Accepts]: Start accepts. Automaton has 240 states and 304 transitions. Word has length 168 [2024-11-22 08:07:22,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 08:07:22,765 INFO L471 AbstractCegarLoop]: Abstraction has 240 states and 304 transitions. [2024-11-22 08:07:22,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 3.6923076923076925) internal successors, (96), 25 states have internal predecessors, (96), 8 states have call successors, (49), 5 states have call predecessors, (49), 8 states have return successors, (49), 7 states have call predecessors, (49), 8 states have call successors, (49) [2024-11-22 08:07:22,766 INFO L276 IsEmpty]: Start isEmpty. Operand 240 states and 304 transitions. [2024-11-22 08:07:22,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-22 08:07:22,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 08:07:22,767 INFO L215 NwaCegarLoop]: trace histogram [25, 25, 25, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 08:07:22,775 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0