./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.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 4b12f47b6a9e6367516ff056d37b273ff79ef947ae35a3f55eb64f05e3d00fe1 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 08:52:46,620 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 08:52:46,691 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 08:52:46,696 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 08:52:46,697 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 08:52:46,723 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 08:52:46,724 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 08:52:46,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 08:52:46,725 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 08:52:46,726 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 08:52:46,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 08:52:46,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 08:52:46,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 08:52:46,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 08:52:46,728 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 08:52:46,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 08:52:46,729 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 08:52:46,729 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 08:52:46,729 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 08:52:46,730 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 08:52:46,733 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 08:52:46,734 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 08:52:46,734 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 08:52:46,734 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 08:52:46,734 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 08:52:46,735 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 08:52:46,735 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 08:52:46,735 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 08:52:46,735 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 08:52:46,736 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 08:52:46,736 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 08:52:46,736 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 08:52:46,736 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:52:46,737 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 08:52:46,737 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 08:52:46,737 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 08:52:46,739 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 08:52:46,740 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 08:52:46,740 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 08:52:46,740 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 08:52:46,740 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 08:52:46,741 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 08:52:46,741 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4b12f47b6a9e6367516ff056d37b273ff79ef947ae35a3f55eb64f05e3d00fe1 [2024-10-24 08:52:47,043 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 08:52:47,074 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 08:52:47,077 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 08:52:47,079 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 08:52:47,080 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 08:52:47,081 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.i [2024-10-24 08:52:48,516 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 08:52:48,768 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 08:52:48,769 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.i [2024-10-24 08:52:48,780 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6728dc05/102d93ddf20e4f9a8f0ba08e97c4351d/FLAG26549ca0c [2024-10-24 08:52:48,796 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b6728dc05/102d93ddf20e4f9a8f0ba08e97c4351d [2024-10-24 08:52:48,799 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 08:52:48,801 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 08:52:48,802 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 08:52:48,802 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 08:52:48,809 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 08:52:48,810 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:52:48" (1/1) ... [2024-10-24 08:52:48,811 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c394b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:48, skipping insertion in model container [2024-10-24 08:52:48,811 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:52:48" (1/1) ... [2024-10-24 08:52:48,838 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 08:52:48,984 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.i[915,928] [2024-10-24 08:52:49,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:52:49,035 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 08:52:49,047 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_floatingpointinfluence_no-floats_file-2.i[915,928] [2024-10-24 08:52:49,075 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 08:52:49,092 INFO L204 MainTranslator]: Completed translation [2024-10-24 08:52:49,092 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49 WrapperNode [2024-10-24 08:52:49,092 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 08:52:49,093 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 08:52:49,093 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 08:52:49,094 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 08:52:49,100 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,109 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,142 INFO L138 Inliner]: procedures = 26, calls = 27, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 123 [2024-10-24 08:52:49,143 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 08:52:49,144 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 08:52:49,144 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 08:52:49,144 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 08:52:49,156 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,157 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,161 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,183 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 08:52:49,184 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,184 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,191 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,194 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,196 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,202 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,206 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 08:52:49,207 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 08:52:49,208 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 08:52:49,208 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 08:52:49,209 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (1/1) ... [2024-10-24 08:52:49,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 08:52:49,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 08:52:49,258 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 08:52:49,264 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 08:52:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 08:52:49,313 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 08:52:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 08:52:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 08:52:49,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 08:52:49,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 08:52:49,394 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 08:52:49,398 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 08:52:49,695 INFO L? ?]: Removed 11 outVars from TransFormulas that were not future-live. [2024-10-24 08:52:49,695 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 08:52:49,736 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 08:52:49,736 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 08:52:49,737 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:52:49 BoogieIcfgContainer [2024-10-24 08:52:49,737 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 08:52:49,739 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 08:52:49,739 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 08:52:49,742 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 08:52:49,743 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:52:48" (1/3) ... [2024-10-24 08:52:49,744 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e82ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:52:49, skipping insertion in model container [2024-10-24 08:52:49,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:52:49" (2/3) ... [2024-10-24 08:52:49,745 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e82ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:52:49, skipping insertion in model container [2024-10-24 08:52:49,745 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:52:49" (3/3) ... [2024-10-24 08:52:49,747 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_floatingpointinfluence_no-floats_file-2.i [2024-10-24 08:52:49,763 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 08:52:49,764 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 08:52:49,840 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 08:52:49,849 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;@67bf9c1e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 08:52:49,850 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 08:52:49,854 INFO L276 IsEmpty]: Start isEmpty. Operand has 49 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:52:49,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 08:52:49,867 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:49,868 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:49,869 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:49,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:49,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1804272360, now seen corresponding path program 1 times [2024-10-24 08:52:49,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:49,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602727817] [2024-10-24 08:52:49,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:49,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:50,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:51,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:51,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:51,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:51,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:51,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,274 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:51,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:51,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:51,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,294 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:51,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:51,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,301 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:51,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:51,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:51,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:51,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:51,326 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:52:51,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:51,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602727817] [2024-10-24 08:52:51,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1602727817] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:51,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:51,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:52:51,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1076767299] [2024-10-24 08:52:51,330 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:51,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:52:51,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:51,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:52:51,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:52:51,358 INFO L87 Difference]: Start difference. First operand has 49 states, 32 states have (on average 1.46875) internal successors, (47), 33 states have internal predecessors, (47), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:52,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:52,006 INFO L93 Difference]: Finished difference Result 111 states and 190 transitions. [2024-10-24 08:52:52,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 08:52:52,011 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-10-24 08:52:52,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:52,020 INFO L225 Difference]: With dead ends: 111 [2024-10-24 08:52:52,020 INFO L226 Difference]: Without dead ends: 63 [2024-10-24 08:52:52,024 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:52:52,030 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 21 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 75 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:52,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 135 Invalid, 75 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 08:52:52,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-10-24 08:52:52,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 53. [2024-10-24 08:52:52,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53 states, 37 states have (on average 1.3783783783783783) internal successors, (51), 37 states have internal predecessors, (51), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:52:52,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53 states to 53 states and 79 transitions. [2024-10-24 08:52:52,077 INFO L78 Accepts]: Start accepts. Automaton has 53 states and 79 transitions. Word has length 87 [2024-10-24 08:52:52,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:52,079 INFO L471 AbstractCegarLoop]: Abstraction has 53 states and 79 transitions. [2024-10-24 08:52:52,079 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:52,080 INFO L276 IsEmpty]: Start isEmpty. Operand 53 states and 79 transitions. [2024-10-24 08:52:52,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-10-24 08:52:52,082 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:52,083 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:52,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 08:52:52,083 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:52,085 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:52,085 INFO L85 PathProgramCache]: Analyzing trace with hash 1681348310, now seen corresponding path program 1 times [2024-10-24 08:52:52,085 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:52,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474855693] [2024-10-24 08:52:52,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:52,087 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:52,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,560 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:52,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:52,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:52,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:52,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:52,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:52,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:52,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:52,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:52,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:52,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:52,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:52,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,585 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:52,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:52,589 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:52:52,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:52,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474855693] [2024-10-24 08:52:52,590 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474855693] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:52,590 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:52,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 08:52:52,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503555019] [2024-10-24 08:52:52,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:52,592 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 08:52:52,592 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:52,593 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 08:52:52,593 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 08:52:52,593 INFO L87 Difference]: Start difference. First operand 53 states and 79 transitions. Second operand has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:53,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:53,458 INFO L93 Difference]: Finished difference Result 106 states and 158 transitions. [2024-10-24 08:52:53,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 08:52:53,459 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 87 [2024-10-24 08:52:53,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:53,460 INFO L225 Difference]: With dead ends: 106 [2024-10-24 08:52:53,461 INFO L226 Difference]: Without dead ends: 54 [2024-10-24 08:52:53,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 08:52:53,463 INFO L432 NwaCegarLoop]: 45 mSDtfsCounter, 21 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:53,463 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 119 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 08:52:53,464 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2024-10-24 08:52:53,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 45. [2024-10-24 08:52:53,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45 states, 29 states have (on average 1.2758620689655173) internal successors, (37), 29 states have internal predecessors, (37), 14 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:52:53,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 65 transitions. [2024-10-24 08:52:53,477 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 65 transitions. Word has length 87 [2024-10-24 08:52:53,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:53,477 INFO L471 AbstractCegarLoop]: Abstraction has 45 states and 65 transitions. [2024-10-24 08:52:53,480 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:53,480 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 65 transitions. [2024-10-24 08:52:53,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-10-24 08:52:53,485 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:53,485 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:53,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 08:52:53,486 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:53,486 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:53,486 INFO L85 PathProgramCache]: Analyzing trace with hash 712265383, now seen corresponding path program 1 times [2024-10-24 08:52:53,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:53,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391125883] [2024-10-24 08:52:53,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:53,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:53,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:54,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:54,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:54,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,616 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:54,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,619 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:54,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:54,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,626 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:54,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:54,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,634 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:54,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:54,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,639 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:54,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:54,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,646 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:54,653 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:52:54,653 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:54,653 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391125883] [2024-10-24 08:52:54,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391125883] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:54,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:54,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 08:52:54,654 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188193238] [2024-10-24 08:52:54,654 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:54,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 08:52:54,655 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:54,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 08:52:54,659 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-24 08:52:54,659 INFO L87 Difference]: Start difference. First operand 45 states and 65 transitions. Second operand has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:54,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:54,960 INFO L93 Difference]: Finished difference Result 90 states and 116 transitions. [2024-10-24 08:52:54,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 08:52:54,961 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 89 [2024-10-24 08:52:54,962 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:54,964 INFO L225 Difference]: With dead ends: 90 [2024-10-24 08:52:54,965 INFO L226 Difference]: Without dead ends: 88 [2024-10-24 08:52:54,965 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:52:54,968 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 54 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 142 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 142 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:54,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 252 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 142 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 08:52:54,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 88 states. [2024-10-24 08:52:54,983 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 88 to 69. [2024-10-24 08:52:54,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 50 states have (on average 1.26) internal successors, (63), 51 states have internal predecessors, (63), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 08:52:54,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 95 transitions. [2024-10-24 08:52:54,985 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 95 transitions. Word has length 89 [2024-10-24 08:52:54,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:54,985 INFO L471 AbstractCegarLoop]: Abstraction has 69 states and 95 transitions. [2024-10-24 08:52:54,986 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.142857142857143) internal successors, (22), 7 states have internal predecessors, (22), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:54,986 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 95 transitions. [2024-10-24 08:52:54,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 08:52:54,987 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:54,987 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:54,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 08:52:54,988 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:54,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:54,988 INFO L85 PathProgramCache]: Analyzing trace with hash -173065847, now seen corresponding path program 1 times [2024-10-24 08:52:54,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:54,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21163993] [2024-10-24 08:52:54,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:54,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,047 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:56,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,051 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:56,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:56,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:56,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:56,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,059 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:56,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,061 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:56,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:56,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,074 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:56,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:56,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,079 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:52:56,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:56,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21163993] [2024-10-24 08:52:56,080 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21163993] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:56,080 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:56,080 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 08:52:56,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1942135886] [2024-10-24 08:52:56,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:56,081 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 08:52:56,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:56,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 08:52:56,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-10-24 08:52:56,083 INFO L87 Difference]: Start difference. First operand 69 states and 95 transitions. Second operand has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:56,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:56,621 INFO L93 Difference]: Finished difference Result 115 states and 143 transitions. [2024-10-24 08:52:56,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 08:52:56,622 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 90 [2024-10-24 08:52:56,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:56,623 INFO L225 Difference]: With dead ends: 115 [2024-10-24 08:52:56,623 INFO L226 Difference]: Without dead ends: 113 [2024-10-24 08:52:56,624 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2024-10-24 08:52:56,625 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 74 mSDsluCounter, 258 mSDsCounter, 0 mSdLazyCounter, 210 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 210 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:56,625 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 333 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 210 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:52:56,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-24 08:52:56,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 66. [2024-10-24 08:52:56,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 47 states have (on average 1.2553191489361701) internal successors, (59), 48 states have internal predecessors, (59), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 08:52:56,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 91 transitions. [2024-10-24 08:52:56,636 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 91 transitions. Word has length 90 [2024-10-24 08:52:56,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:56,636 INFO L471 AbstractCegarLoop]: Abstraction has 66 states and 91 transitions. [2024-10-24 08:52:56,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.875) internal successors, (23), 8 states have internal predecessors, (23), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:56,637 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 91 transitions. [2024-10-24 08:52:56,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 08:52:56,638 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:56,638 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:56,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 08:52:56,638 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:56,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:56,639 INFO L85 PathProgramCache]: Analyzing trace with hash 980532706, now seen corresponding path program 1 times [2024-10-24 08:52:56,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:56,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425248205] [2024-10-24 08:52:56,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:56,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:56,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:56,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:56,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:56,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:56,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:56,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:56,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:56,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,724 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:56,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:56,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,731 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:56,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,735 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:52:56,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:56,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [425248205] [2024-10-24 08:52:56,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [425248205] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:56,736 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:56,736 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 08:52:56,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512965090] [2024-10-24 08:52:56,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:56,736 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 08:52:56,736 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:56,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 08:52:56,737 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:52:56,737 INFO L87 Difference]: Start difference. First operand 66 states and 91 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:56,791 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:56,791 INFO L93 Difference]: Finished difference Result 140 states and 190 transitions. [2024-10-24 08:52:56,792 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 08:52:56,792 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-10-24 08:52:56,792 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:56,794 INFO L225 Difference]: With dead ends: 140 [2024-10-24 08:52:56,794 INFO L226 Difference]: Without dead ends: 75 [2024-10-24 08:52:56,795 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:52:56,799 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 18 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:56,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 108 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:52:56,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2024-10-24 08:52:56,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 64. [2024-10-24 08:52:56,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 45 states have (on average 1.2444444444444445) internal successors, (56), 46 states have internal predecessors, (56), 16 states have call successors, (16), 2 states have call predecessors, (16), 2 states have return successors, (16), 15 states have call predecessors, (16), 16 states have call successors, (16) [2024-10-24 08:52:56,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 88 transitions. [2024-10-24 08:52:56,819 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 88 transitions. Word has length 91 [2024-10-24 08:52:56,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:56,820 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 88 transitions. [2024-10-24 08:52:56,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:56,820 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 88 transitions. [2024-10-24 08:52:56,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-10-24 08:52:56,821 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:56,821 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:56,822 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 08:52:56,824 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:56,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:56,825 INFO L85 PathProgramCache]: Analyzing trace with hash 1000098497, now seen corresponding path program 1 times [2024-10-24 08:52:56,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:56,825 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [392871605] [2024-10-24 08:52:56,825 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:56,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:56,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:56,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,896 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,898 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:56,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:56,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:56,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:56,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:56,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:56,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:56,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:56,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:56,933 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:52:56,933 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:56,933 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [392871605] [2024-10-24 08:52:56,933 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [392871605] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:56,933 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:56,933 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 08:52:56,933 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [102196941] [2024-10-24 08:52:56,933 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:56,934 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 08:52:56,934 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:56,935 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 08:52:56,935 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:52:56,935 INFO L87 Difference]: Start difference. First operand 64 states and 88 transitions. Second operand has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:56,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:56,992 INFO L93 Difference]: Finished difference Result 129 states and 175 transitions. [2024-10-24 08:52:56,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 08:52:56,993 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 91 [2024-10-24 08:52:56,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:56,994 INFO L225 Difference]: With dead ends: 129 [2024-10-24 08:52:56,995 INFO L226 Difference]: Without dead ends: 66 [2024-10-24 08:52:56,996 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 08:52:56,998 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 23 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:56,999 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 100 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 08:52:56,999 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2024-10-24 08:52:57,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 57. [2024-10-24 08:52:57,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57 states, 40 states have (on average 1.225) internal successors, (49), 40 states have internal predecessors, (49), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:52:57,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57 states to 57 states and 77 transitions. [2024-10-24 08:52:57,012 INFO L78 Accepts]: Start accepts. Automaton has 57 states and 77 transitions. Word has length 91 [2024-10-24 08:52:57,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:57,012 INFO L471 AbstractCegarLoop]: Abstraction has 57 states and 77 transitions. [2024-10-24 08:52:57,013 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.0) internal successors, (24), 3 states have internal predecessors, (24), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:57,013 INFO L276 IsEmpty]: Start isEmpty. Operand 57 states and 77 transitions. [2024-10-24 08:52:57,014 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-10-24 08:52:57,016 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:57,016 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:57,017 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 08:52:57,017 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:57,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:57,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1584718980, now seen corresponding path program 1 times [2024-10-24 08:52:57,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:57,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002889545] [2024-10-24 08:52:57,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:57,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:57,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,847 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:57,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:57,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,853 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:57,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:57,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,857 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:57,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:57,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:57,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,861 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:57,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:57,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,865 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:57,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,870 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:57,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:57,872 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:52:57,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:57,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002889545] [2024-10-24 08:52:57,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002889545] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:57,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:57,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 08:52:57,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486893520] [2024-10-24 08:52:57,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:57,874 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 08:52:57,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:57,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 08:52:57,875 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 08:52:57,875 INFO L87 Difference]: Start difference. First operand 57 states and 77 transitions. Second operand has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:58,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:58,277 INFO L93 Difference]: Finished difference Result 97 states and 121 transitions. [2024-10-24 08:52:58,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 08:52:58,278 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 93 [2024-10-24 08:52:58,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:58,279 INFO L225 Difference]: With dead ends: 97 [2024-10-24 08:52:58,279 INFO L226 Difference]: Without dead ends: 95 [2024-10-24 08:52:58,280 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2024-10-24 08:52:58,280 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 35 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 248 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:58,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 402 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 248 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 08:52:58,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2024-10-24 08:52:58,291 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 64. [2024-10-24 08:52:58,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 47 states have internal predecessors, (58), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:52:58,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 86 transitions. [2024-10-24 08:52:58,292 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 86 transitions. Word has length 93 [2024-10-24 08:52:58,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:58,293 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 86 transitions. [2024-10-24 08:52:58,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 2.888888888888889) internal successors, (26), 9 states have internal predecessors, (26), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:58,293 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2024-10-24 08:52:58,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 08:52:58,294 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:58,295 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:58,295 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 08:52:58,295 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:58,295 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:58,295 INFO L85 PathProgramCache]: Analyzing trace with hash -1632645654, now seen corresponding path program 1 times [2024-10-24 08:52:58,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:58,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023342723] [2024-10-24 08:52:58,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:58,296 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:58,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:52:59,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:52:59,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:52:59,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:52:59,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:52:59,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:52:59,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,104 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:52:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:52:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:52:59,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:52:59,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:52:59,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:52:59,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:52:59,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:52:59,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:52:59,129 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:52:59,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:52:59,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023342723] [2024-10-24 08:52:59,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2023342723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:52:59,129 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:52:59,129 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 08:52:59,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1875105453] [2024-10-24 08:52:59,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:52:59,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 08:52:59,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:52:59,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 08:52:59,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:52:59,135 INFO L87 Difference]: Start difference. First operand 64 states and 86 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:59,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:52:59,739 INFO L93 Difference]: Finished difference Result 103 states and 127 transitions. [2024-10-24 08:52:59,740 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 08:52:59,740 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-10-24 08:52:59,740 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:52:59,741 INFO L225 Difference]: With dead ends: 103 [2024-10-24 08:52:59,741 INFO L226 Difference]: Without dead ends: 101 [2024-10-24 08:52:59,741 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=76, Invalid=266, Unknown=0, NotChecked=0, Total=342 [2024-10-24 08:52:59,742 INFO L432 NwaCegarLoop]: 79 mSDtfsCounter, 40 mSDsluCounter, 375 mSDsCounter, 0 mSdLazyCounter, 301 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 454 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 301 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:52:59,742 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 454 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 301 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:52:59,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2024-10-24 08:52:59,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 64. [2024-10-24 08:52:59,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 47 states have internal predecessors, (58), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:52:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 86 transitions. [2024-10-24 08:52:59,754 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 86 transitions. Word has length 94 [2024-10-24 08:52:59,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:52:59,755 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 86 transitions. [2024-10-24 08:52:59,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:52:59,755 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2024-10-24 08:52:59,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-10-24 08:52:59,756 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:52:59,756 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:52:59,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 08:52:59,756 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:52:59,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:52:59,757 INFO L85 PathProgramCache]: Analyzing trace with hash 735672193, now seen corresponding path program 1 times [2024-10-24 08:52:59,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:52:59,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [421701232] [2024-10-24 08:52:59,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:52:59,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:52:59,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,006 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:53:01,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:53:01,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:53:01,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:53:01,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:53:01,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:53:01,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:53:01,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:53:01,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:53:01,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:53:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:53:01,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:53:01,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:53:01,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,041 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:53:01,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:53:01,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:53:01,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [421701232] [2024-10-24 08:53:01,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [421701232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:53:01,044 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:53:01,044 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 08:53:01,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2049669369] [2024-10-24 08:53:01,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:53:01,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 08:53:01,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:53:01,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 08:53:01,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-24 08:53:01,046 INFO L87 Difference]: Start difference. First operand 64 states and 86 transitions. Second operand has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:53:01,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:53:01,504 INFO L93 Difference]: Finished difference Result 85 states and 108 transitions. [2024-10-24 08:53:01,504 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 08:53:01,505 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 94 [2024-10-24 08:53:01,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:53:01,506 INFO L225 Difference]: With dead ends: 85 [2024-10-24 08:53:01,506 INFO L226 Difference]: Without dead ends: 83 [2024-10-24 08:53:01,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-10-24 08:53:01,507 INFO L432 NwaCegarLoop]: 69 mSDtfsCounter, 42 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 409 SdHoareTripleChecker+Invalid, 269 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:53:01,507 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 409 Invalid, 269 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:53:01,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-10-24 08:53:01,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 64. [2024-10-24 08:53:01,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 47 states have (on average 1.2340425531914894) internal successors, (58), 47 states have internal predecessors, (58), 14 states have call successors, (14), 2 states have call predecessors, (14), 2 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2024-10-24 08:53:01,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 86 transitions. [2024-10-24 08:53:01,516 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 86 transitions. Word has length 94 [2024-10-24 08:53:01,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:53:01,517 INFO L471 AbstractCegarLoop]: Abstraction has 64 states and 86 transitions. [2024-10-24 08:53:01,517 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.7) internal successors, (27), 10 states have internal predecessors, (27), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:53:01,517 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 86 transitions. [2024-10-24 08:53:01,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2024-10-24 08:53:01,518 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 08:53:01,518 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:53:01,518 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 08:53:01,518 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 08:53:01,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 08:53:01,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1580003973, now seen corresponding path program 1 times [2024-10-24 08:53:01,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 08:53:01,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1568305469] [2024-10-24 08:53:01,519 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 08:53:01,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 08:53:01,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 08:53:02,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,231 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 08:53:02,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 08:53:02,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 08:53:02,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 08:53:02,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 08:53:02,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 08:53:02,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 08:53:02,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 08:53:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 08:53:02,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,242 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 08:53:02,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 08:53:02,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 08:53:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 08:53:02,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 08:53:02,248 INFO L134 CoverageAnalysis]: Checked inductivity of 364 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-10-24 08:53:02,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 08:53:02,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1568305469] [2024-10-24 08:53:02,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1568305469] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 08:53:02,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 08:53:02,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 08:53:02,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289594261] [2024-10-24 08:53:02,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 08:53:02,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 08:53:02,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 08:53:02,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 08:53:02,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-10-24 08:53:02,250 INFO L87 Difference]: Start difference. First operand 64 states and 86 transitions. Second operand has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:53:02,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 08:53:02,635 INFO L93 Difference]: Finished difference Result 93 states and 116 transitions. [2024-10-24 08:53:02,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 08:53:02,636 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) Word has length 95 [2024-10-24 08:53:02,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 08:53:02,637 INFO L225 Difference]: With dead ends: 93 [2024-10-24 08:53:02,637 INFO L226 Difference]: Without dead ends: 0 [2024-10-24 08:53:02,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=53, Invalid=157, Unknown=0, NotChecked=0, Total=210 [2024-10-24 08:53:02,638 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 35 mSDsluCounter, 399 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 08:53:02,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 471 Invalid, 337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 08:53:02,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-10-24 08:53:02,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-10-24 08:53:02,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-24 08:53:02,639 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-10-24 08:53:02,639 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 95 [2024-10-24 08:53:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 08:53:02,642 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-10-24 08:53:02,642 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 2.5454545454545454) internal successors, (28), 11 states have internal predecessors, (28), 1 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 1 states have call predecessors, (14), 1 states have call successors, (14) [2024-10-24 08:53:02,642 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-10-24 08:53:02,642 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-10-24 08:53:02,645 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-24 08:53:02,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 08:53:02,649 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 08:53:02,652 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-10-24 08:53:03,617 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-24 08:53:03,633 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.10 08:53:03 BoogieIcfgContainer [2024-10-24 08:53:03,633 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-24 08:53:03,634 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-24 08:53:03,634 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-24 08:53:03,635 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-24 08:53:03,635 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:52:49" (3/4) ... [2024-10-24 08:53:03,637 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-10-24 08:53:03,641 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure assume_abort_if_not [2024-10-24 08:53:03,646 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2024-10-24 08:53:03,647 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2024-10-24 08:53:03,647 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-10-24 08:53:03,647 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-10-24 08:53:03,759 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-10-24 08:53:03,760 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-10-24 08:53:03,760 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-24 08:53:03,761 INFO L158 Benchmark]: Toolchain (without parser) took 14960.39ms. Allocated memory was 186.6MB in the beginning and 482.3MB in the end (delta: 295.7MB). Free memory was 149.6MB in the beginning and 366.3MB in the end (delta: -216.7MB). Peak memory consumption was 80.7MB. Max. memory is 16.1GB. [2024-10-24 08:53:03,761 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-24 08:53:03,761 INFO L158 Benchmark]: CACSL2BoogieTranslator took 290.92ms. Allocated memory is still 186.6MB. Free memory was 149.1MB in the beginning and 134.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. [2024-10-24 08:53:03,761 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.93ms. Allocated memory is still 186.6MB. Free memory was 134.9MB in the beginning and 131.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 08:53:03,762 INFO L158 Benchmark]: Boogie Preprocessor took 62.87ms. Allocated memory is still 186.6MB. Free memory was 131.5MB in the beginning and 126.5MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 08:53:03,762 INFO L158 Benchmark]: RCFGBuilder took 529.54ms. Allocated memory is still 186.6MB. Free memory was 126.5MB in the beginning and 104.3MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. [2024-10-24 08:53:03,763 INFO L158 Benchmark]: TraceAbstraction took 13894.45ms. Allocated memory was 186.6MB in the beginning and 482.3MB in the end (delta: 295.7MB). Free memory was 103.5MB in the beginning and 371.5MB in the end (delta: -268.0MB). Peak memory consumption was 188.3MB. Max. memory is 16.1GB. [2024-10-24 08:53:03,763 INFO L158 Benchmark]: Witness Printer took 126.19ms. Allocated memory is still 482.3MB. Free memory was 371.5MB in the beginning and 366.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-24 08:53:03,765 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 117.4MB. Free memory is still 90.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 290.92ms. Allocated memory is still 186.6MB. Free memory was 149.1MB in the beginning and 134.9MB in the end (delta: 14.2MB). Peak memory consumption was 14.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.93ms. Allocated memory is still 186.6MB. Free memory was 134.9MB in the beginning and 131.5MB in the end (delta: 3.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 62.87ms. Allocated memory is still 186.6MB. Free memory was 131.5MB in the beginning and 126.5MB in the end (delta: 5.0MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 529.54ms. Allocated memory is still 186.6MB. Free memory was 126.5MB in the beginning and 104.3MB in the end (delta: 22.2MB). Peak memory consumption was 23.1MB. Max. memory is 16.1GB. * TraceAbstraction took 13894.45ms. Allocated memory was 186.6MB in the beginning and 482.3MB in the end (delta: 295.7MB). Free memory was 103.5MB in the beginning and 371.5MB in the end (delta: -268.0MB). Peak memory consumption was 188.3MB. Max. memory is 16.1GB. * Witness Printer took 126.19ms. Allocated memory is still 482.3MB. Free memory was 371.5MB in the beginning and 366.3MB in the end (delta: 5.2MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 19]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 49 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 12.8s, OverallIterations: 10, TraceHistogramMax: 14, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 363 SdHoareTripleChecker+Valid, 2.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 363 mSDsluCounter, 2783 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2135 mSDsCounter, 30 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1690 IncrementalHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 30 mSolverCounterUnsat, 648 mSDtfsCounter, 1690 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 385 GetRequests, 307 SyntacticMatches, 0 SemanticMatches, 78 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 2.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=69occurred in iteration=3, InterpolantAutomatonStates: 74, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 10 MinimizatonAttempts, 192 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.7s InterpolantComputationTime, 911 NumberOfCodeBlocks, 911 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 901 ConstructedInterpolants, 0 QuantifiedInterpolants, 4377 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 PerfectInterpolantSequences, 3640/3640 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 97]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 20]: Procedure Contract for assume_abort_if_not Derived contract for procedure assume_abort_if_not. Ensures: (((((((((((((isInitial == \old(isInitial)) && (var_1_1 == \old(var_1_1))) && (var_1_5 == \old(var_1_5))) && (var_1_6 == \old(var_1_6))) && (var_1_7 == \old(var_1_7))) && (var_1_8 == \old(var_1_8))) && (var_1_9 == \old(var_1_9))) && (var_1_10 == \old(var_1_10))) && (var_1_11 == \old(var_1_11))) && (var_1_12 == \old(var_1_12))) && (var_1_13 == \old(var_1_13))) && (last_1_var_1_1 == \old(last_1_var_1_1))) && (last_1_var_1_9 == \old(last_1_var_1_9))) RESULT: Ultimate proved your program to be correct! [2024-10-24 08:53:03,812 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE