./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-81.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-81.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 1035d962e39280c92969b9f7066ecadbc22a9f715d97d0ee182811f942c88e9b --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 18:29:20,944 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 18:29:21,037 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 18:29:21,044 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 18:29:21,047 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 18:29:21,074 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 18:29:21,075 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 18:29:21,075 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 18:29:21,076 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 18:29:21,077 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 18:29:21,078 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 18:29:21,078 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 18:29:21,079 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 18:29:21,079 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 18:29:21,081 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 18:29:21,082 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 18:29:21,082 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 18:29:21,083 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 18:29:21,083 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 18:29:21,083 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 18:29:21,083 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 18:29:21,087 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 18:29:21,088 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 18:29:21,088 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 18:29:21,088 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 18:29:21,088 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 18:29:21,088 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 18:29:21,089 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 18:29:21,089 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 18:29:21,089 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 18:29:21,089 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 18:29:21,089 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 18:29:21,090 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:29:21,090 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 18:29:21,090 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 18:29:21,091 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 18:29:21,091 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 18:29:21,091 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 18:29:21,092 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 18:29:21,093 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 18:29:21,093 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 18:29:21,094 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 18:29:21,094 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1035d962e39280c92969b9f7066ecadbc22a9f715d97d0ee182811f942c88e9b [2024-11-18 18:29:21,364 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 18:29:21,384 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 18:29:21,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 18:29:21,389 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 18:29:21,389 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 18:29:21,390 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-81.i [2024-11-18 18:29:22,884 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 18:29:23,104 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 18:29:23,105 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-81.i [2024-11-18 18:29:23,127 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eaacae2e/f302472d322a41b49c9df35d6efc3862/FLAGee7ad2f44 [2024-11-18 18:29:23,461 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5eaacae2e/f302472d322a41b49c9df35d6efc3862 [2024-11-18 18:29:23,463 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 18:29:23,464 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 18:29:23,467 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 18:29:23,467 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 18:29:23,472 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 18:29:23,473 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:23,475 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b92c61b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23, skipping insertion in model container [2024-11-18 18:29:23,476 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:23,503 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 18:29:23,686 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-81.i[919,932] [2024-11-18 18:29:23,783 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:29:23,799 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 18:29:23,810 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_dependencies_file-81.i[919,932] [2024-11-18 18:29:23,855 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 18:29:23,882 INFO L204 MainTranslator]: Completed translation [2024-11-18 18:29:23,883 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23 WrapperNode [2024-11-18 18:29:23,883 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 18:29:23,884 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 18:29:23,884 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 18:29:23,884 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 18:29:23,892 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:23,902 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:23,953 INFO L138 Inliner]: procedures = 26, calls = 39, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 176 [2024-11-18 18:29:23,958 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 18:29:23,959 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 18:29:23,959 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 18:29:23,959 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 18:29:23,969 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:23,970 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:23,974 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:24,004 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-18 18:29:24,004 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:24,005 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:24,018 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:24,027 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:24,032 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:24,037 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:24,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 18:29:24,049 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 18:29:24,050 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 18:29:24,050 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 18:29:24,051 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (1/1) ... [2024-11-18 18:29:24,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 18:29:24,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 18:29:24,088 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-18 18:29:24,095 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-18 18:29:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 18:29:24,145 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-18 18:29:24,146 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-18 18:29:24,146 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 18:29:24,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 18:29:24,147 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 18:29:24,232 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 18:29:24,235 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 18:29:24,711 INFO L? ?]: Removed 10 outVars from TransFormulas that were not future-live. [2024-11-18 18:29:24,711 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 18:29:24,730 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 18:29:24,730 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 18:29:24,731 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:29:24 BoogieIcfgContainer [2024-11-18 18:29:24,731 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 18:29:24,733 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 18:29:24,733 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 18:29:24,736 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 18:29:24,736 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 06:29:23" (1/3) ... [2024-11-18 18:29:24,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ae98e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:29:24, skipping insertion in model container [2024-11-18 18:29:24,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 06:29:23" (2/3) ... [2024-11-18 18:29:24,737 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@16ae98e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 06:29:24, skipping insertion in model container [2024-11-18 18:29:24,737 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 06:29:24" (3/3) ... [2024-11-18 18:29:24,738 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_dependencies_file-81.i [2024-11-18 18:29:24,755 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 18:29:24,756 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 18:29:24,842 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 18:29:24,848 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;@4152ffe7, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 18:29:24,849 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 18:29:24,853 INFO L276 IsEmpty]: Start isEmpty. Operand has 76 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-18 18:29:24,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-18 18:29:24,872 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:29:24,872 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:29:24,873 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:29:24,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:29:24,880 INFO L85 PathProgramCache]: Analyzing trace with hash -154945835, now seen corresponding path program 1 times [2024-11-18 18:29:24,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:29:24,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101191477] [2024-11-18 18:29:24,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:29:24,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:29:25,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:29:37,491 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:29:37,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:29:37,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101191477] [2024-11-18 18:29:37,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101191477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:29:37,494 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:29:37,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-11-18 18:29:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185471416] [2024-11-18 18:29:37,496 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:29:37,501 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-18 18:29:37,502 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:29:37,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-18 18:29:37,529 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=85, Unknown=0, NotChecked=0, Total=110 [2024-11-18 18:29:37,532 INFO L87 Difference]: Start difference. First operand has 76 states, 47 states have (on average 1.3829787234042554) internal successors, (65), 48 states have internal predecessors, (65), 26 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:29:39,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:29:39,532 INFO L93 Difference]: Finished difference Result 280 states and 497 transitions. [2024-11-18 18:29:39,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-18 18:29:39,535 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 162 [2024-11-18 18:29:39,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:29:39,545 INFO L225 Difference]: With dead ends: 280 [2024-11-18 18:29:39,546 INFO L226 Difference]: Without dead ends: 207 [2024-11-18 18:29:39,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=116, Invalid=304, Unknown=0, NotChecked=0, Total=420 [2024-11-18 18:29:39,553 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 388 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 526 mSolverCounterSat, 84 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 388 SdHoareTripleChecker+Valid, 520 SdHoareTripleChecker+Invalid, 610 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 84 IncrementalHoareTripleChecker+Valid, 526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:29:39,554 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [388 Valid, 520 Invalid, 610 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [84 Valid, 526 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-18 18:29:39,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 207 states. [2024-11-18 18:29:39,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 207 to 137. [2024-11-18 18:29:39,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 82 states have (on average 1.2926829268292683) internal successors, (106), 82 states have internal predecessors, (106), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-18 18:29:39,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 210 transitions. [2024-11-18 18:29:39,636 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 210 transitions. Word has length 162 [2024-11-18 18:29:39,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:29:39,639 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 210 transitions. [2024-11-18 18:29:39,639 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:29:39,640 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 210 transitions. [2024-11-18 18:29:39,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-18 18:29:39,644 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:29:39,645 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:29:39,645 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 18:29:39,646 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:29:39,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:29:39,647 INFO L85 PathProgramCache]: Analyzing trace with hash 546118743, now seen corresponding path program 1 times [2024-11-18 18:29:39,648 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:29:39,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137705430] [2024-11-18 18:29:39,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:29:39,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:29:39,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:29:47,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:29:47,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:29:47,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137705430] [2024-11-18 18:29:47,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137705430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:29:47,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:29:47,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 18:29:47,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [861318558] [2024-11-18 18:29:47,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:29:47,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 18:29:47,633 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:29:47,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 18:29:47,634 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-18 18:29:47,634 INFO L87 Difference]: Start difference. First operand 137 states and 210 transitions. Second operand has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-18 18:29:48,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:29:48,853 INFO L93 Difference]: Finished difference Result 295 states and 441 transitions. [2024-11-18 18:29:48,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-18 18:29:48,854 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 162 [2024-11-18 18:29:48,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:29:48,861 INFO L225 Difference]: With dead ends: 295 [2024-11-18 18:29:48,861 INFO L226 Difference]: Without dead ends: 226 [2024-11-18 18:29:48,862 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=115, Invalid=305, Unknown=0, NotChecked=0, Total=420 [2024-11-18 18:29:48,863 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 441 mSDsluCounter, 488 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 441 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 550 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-18 18:29:48,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [441 Valid, 576 Invalid, 550 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-18 18:29:48,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2024-11-18 18:29:48,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 140. [2024-11-18 18:29:48,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 85 states have (on average 1.3176470588235294) internal successors, (112), 85 states have internal predecessors, (112), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-18 18:29:48,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 216 transitions. [2024-11-18 18:29:48,891 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 216 transitions. Word has length 162 [2024-11-18 18:29:48,892 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:29:48,892 INFO L471 AbstractCegarLoop]: Abstraction has 140 states and 216 transitions. [2024-11-18 18:29:48,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.9166666666666665) internal successors, (35), 12 states have internal predecessors, (35), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-18 18:29:48,893 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 216 transitions. [2024-11-18 18:29:48,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-18 18:29:48,895 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:29:48,896 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:29:48,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 18:29:48,896 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:29:48,897 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:29:48,897 INFO L85 PathProgramCache]: Analyzing trace with hash 804284181, now seen corresponding path program 1 times [2024-11-18 18:29:48,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:29:48,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357484749] [2024-11-18 18:29:48,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:29:48,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:29:48,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:29:50,051 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:29:50,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:29:50,052 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357484749] [2024-11-18 18:29:50,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357484749] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:29:50,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:29:50,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:29:50,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1291442672] [2024-11-18 18:29:50,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:29:50,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:29:50,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:29:50,055 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:29:50,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:29:50,056 INFO L87 Difference]: Start difference. First operand 140 states and 216 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-18 18:29:50,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:29:50,649 INFO L93 Difference]: Finished difference Result 273 states and 417 transitions. [2024-11-18 18:29:50,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-18 18:29:50,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) Word has length 162 [2024-11-18 18:29:50,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:29:50,654 INFO L225 Difference]: With dead ends: 273 [2024-11-18 18:29:50,654 INFO L226 Difference]: Without dead ends: 186 [2024-11-18 18:29:50,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-18 18:29:50,659 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 299 mSDsluCounter, 297 mSDsCounter, 0 mSdLazyCounter, 272 mSolverCounterSat, 144 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 299 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 416 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 144 IncrementalHoareTripleChecker+Valid, 272 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-18 18:29:50,660 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [299 Valid, 390 Invalid, 416 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [144 Valid, 272 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-18 18:29:50,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2024-11-18 18:29:50,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 142. [2024-11-18 18:29:50,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 142 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 87 states have internal predecessors, (113), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-18 18:29:50,696 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 142 states to 142 states and 217 transitions. [2024-11-18 18:29:50,697 INFO L78 Accepts]: Start accepts. Automaton has 142 states and 217 transitions. Word has length 162 [2024-11-18 18:29:50,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:29:50,701 INFO L471 AbstractCegarLoop]: Abstraction has 142 states and 217 transitions. [2024-11-18 18:29:50,701 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 2 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 2 states have call successors, (26) [2024-11-18 18:29:50,702 INFO L276 IsEmpty]: Start isEmpty. Operand 142 states and 217 transitions. [2024-11-18 18:29:50,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-18 18:29:50,704 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:29:50,704 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:29:50,704 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 18:29:50,708 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:29:50,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:29:50,709 INFO L85 PathProgramCache]: Analyzing trace with hash -741751849, now seen corresponding path program 1 times [2024-11-18 18:29:50,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:29:50,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [34294775] [2024-11-18 18:29:50,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:29:50,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:29:50,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:29:55,310 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:29:55,311 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:29:55,311 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [34294775] [2024-11-18 18:29:55,311 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [34294775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:29:55,312 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:29:55,312 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 18:29:55,312 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634838184] [2024-11-18 18:29:55,312 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:29:55,313 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 18:29:55,313 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:29:55,314 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 18:29:55,314 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:29:55,314 INFO L87 Difference]: Start difference. First operand 142 states and 217 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:29:55,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:29:55,734 INFO L93 Difference]: Finished difference Result 270 states and 408 transitions. [2024-11-18 18:29:55,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:29:55,735 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 162 [2024-11-18 18:29:55,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:29:55,737 INFO L225 Difference]: With dead ends: 270 [2024-11-18 18:29:55,737 INFO L226 Difference]: Without dead ends: 201 [2024-11-18 18:29:55,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:29:55,739 INFO L432 NwaCegarLoop]: 91 mSDtfsCounter, 138 mSDsluCounter, 254 mSDsCounter, 0 mSdLazyCounter, 137 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 345 SdHoareTripleChecker+Invalid, 143 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 18:29:55,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 345 Invalid, 143 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 137 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 18:29:55,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-18 18:29:55,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 144. [2024-11-18 18:29:55,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 89 states have (on average 1.3146067415730338) internal successors, (117), 89 states have internal predecessors, (117), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-18 18:29:55,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 221 transitions. [2024-11-18 18:29:55,763 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 221 transitions. Word has length 162 [2024-11-18 18:29:55,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:29:55,763 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 221 transitions. [2024-11-18 18:29:55,764 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:29:55,764 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 221 transitions. [2024-11-18 18:29:55,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2024-11-18 18:29:55,766 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:29:55,766 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:29:55,766 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 18:29:55,767 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:29:55,767 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:29:55,767 INFO L85 PathProgramCache]: Analyzing trace with hash -40687271, now seen corresponding path program 1 times [2024-11-18 18:29:55,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:29:55,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992351229] [2024-11-18 18:29:55,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:29:55,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:29:55,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:30:00,286 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:30:00,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:30:00,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992351229] [2024-11-18 18:30:00,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992351229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:30:00,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:30:00,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 18:30:00,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018163423] [2024-11-18 18:30:00,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:30:00,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 18:30:00,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:30:00,288 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 18:30:00,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:30:00,289 INFO L87 Difference]: Start difference. First operand 144 states and 221 transitions. Second operand has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:00,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:30:00,690 INFO L93 Difference]: Finished difference Result 245 states and 372 transitions. [2024-11-18 18:30:00,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:30:00,691 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 162 [2024-11-18 18:30:00,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:30:00,693 INFO L225 Difference]: With dead ends: 245 [2024-11-18 18:30:00,693 INFO L226 Difference]: Without dead ends: 157 [2024-11-18 18:30:00,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=39, Invalid=51, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:30:00,696 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 96 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:30:00,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 273 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:30:00,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2024-11-18 18:30:00,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 135. [2024-11-18 18:30:00,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 135 states, 80 states have (on average 1.3) internal successors, (104), 80 states have internal predecessors, (104), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-11-18 18:30:00,729 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 208 transitions. [2024-11-18 18:30:00,729 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 208 transitions. Word has length 162 [2024-11-18 18:30:00,730 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:30:00,730 INFO L471 AbstractCegarLoop]: Abstraction has 135 states and 208 transitions. [2024-11-18 18:30:00,730 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.888888888888889) internal successors, (35), 9 states have internal predecessors, (35), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:00,730 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 208 transitions. [2024-11-18 18:30:00,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 18:30:00,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:30:00,732 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:30:00,732 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 18:30:00,733 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:30:00,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:30:00,733 INFO L85 PathProgramCache]: Analyzing trace with hash 1676475118, now seen corresponding path program 1 times [2024-11-18 18:30:00,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:30:00,734 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2128414044] [2024-11-18 18:30:00,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:30:00,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:30:00,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:30:00,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:30:00,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:30:00,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2128414044] [2024-11-18 18:30:00,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2128414044] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:30:00,793 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:30:00,794 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 18:30:00,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267920728] [2024-11-18 18:30:00,794 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:30:00,794 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 18:30:00,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:30:00,795 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 18:30:00,796 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 18:30:00,796 INFO L87 Difference]: Start difference. First operand 135 states and 208 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:00,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:30:00,837 INFO L93 Difference]: Finished difference Result 256 states and 387 transitions. [2024-11-18 18:30:00,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 18:30:00,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-18 18:30:00,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:30:00,841 INFO L225 Difference]: With dead ends: 256 [2024-11-18 18:30:00,841 INFO L226 Difference]: Without dead ends: 175 [2024-11-18 18:30:00,842 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 18:30:00,843 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 44 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 18:30:00,843 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 223 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 18:30:00,844 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2024-11-18 18:30:00,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 172. [2024-11-18 18:30:00,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172 states, 111 states have (on average 1.3153153153153154) internal successors, (146), 112 states have internal predecessors, (146), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-18 18:30:00,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172 states to 172 states and 258 transitions. [2024-11-18 18:30:00,868 INFO L78 Accepts]: Start accepts. Automaton has 172 states and 258 transitions. Word has length 163 [2024-11-18 18:30:00,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:30:00,869 INFO L471 AbstractCegarLoop]: Abstraction has 172 states and 258 transitions. [2024-11-18 18:30:00,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:00,869 INFO L276 IsEmpty]: Start isEmpty. Operand 172 states and 258 transitions. [2024-11-18 18:30:00,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 18:30:00,871 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:30:00,871 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:30:00,871 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 18:30:00,871 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:30:00,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:30:00,872 INFO L85 PathProgramCache]: Analyzing trace with hash 1283448108, now seen corresponding path program 1 times [2024-11-18 18:30:00,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:30:00,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213390641] [2024-11-18 18:30:00,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:30:00,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:30:00,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:30:05,487 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:30:05,488 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:30:05,488 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1213390641] [2024-11-18 18:30:05,488 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1213390641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:30:05,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:30:05,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 18:30:05,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772269719] [2024-11-18 18:30:05,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:30:05,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 18:30:05,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:30:05,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 18:30:05,490 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-11-18 18:30:05,490 INFO L87 Difference]: Start difference. First operand 172 states and 258 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:06,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:30:06,183 INFO L93 Difference]: Finished difference Result 373 states and 549 transitions. [2024-11-18 18:30:06,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 18:30:06,184 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-18 18:30:06,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:30:06,187 INFO L225 Difference]: With dead ends: 373 [2024-11-18 18:30:06,187 INFO L226 Difference]: Without dead ends: 261 [2024-11-18 18:30:06,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2024-11-18 18:30:06,189 INFO L432 NwaCegarLoop]: 109 mSDtfsCounter, 147 mSDsluCounter, 422 mSDsCounter, 0 mSdLazyCounter, 357 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-18 18:30:06,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 531 Invalid, 437 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 357 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-18 18:30:06,190 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 261 states. [2024-11-18 18:30:06,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 261 to 182. [2024-11-18 18:30:06,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 121 states have (on average 1.322314049586777) internal successors, (160), 122 states have internal predecessors, (160), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-18 18:30:06,209 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 272 transitions. [2024-11-18 18:30:06,210 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 272 transitions. Word has length 163 [2024-11-18 18:30:06,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:30:06,211 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 272 transitions. [2024-11-18 18:30:06,211 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:06,211 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 272 transitions. [2024-11-18 18:30:06,213 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 18:30:06,213 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:30:06,213 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:30:06,213 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 18:30:06,213 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:30:06,214 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:30:06,214 INFO L85 PathProgramCache]: Analyzing trace with hash 1984512686, now seen corresponding path program 1 times [2024-11-18 18:30:06,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:30:06,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1250780444] [2024-11-18 18:30:06,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:30:06,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:30:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:30:10,693 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:30:10,694 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:30:10,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1250780444] [2024-11-18 18:30:10,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1250780444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:30:10,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:30:10,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 18:30:10,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534413316] [2024-11-18 18:30:10,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:30:10,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 18:30:10,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:30:10,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 18:30:10,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-18 18:30:10,696 INFO L87 Difference]: Start difference. First operand 182 states and 272 transitions. Second operand has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:11,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:30:11,083 INFO L93 Difference]: Finished difference Result 313 states and 466 transitions. [2024-11-18 18:30:11,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 18:30:11,083 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-18 18:30:11,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:30:11,086 INFO L225 Difference]: With dead ends: 313 [2024-11-18 18:30:11,086 INFO L226 Difference]: Without dead ends: 201 [2024-11-18 18:30:11,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:30:11,089 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 58 mSDsluCounter, 242 mSDsCounter, 0 mSdLazyCounter, 156 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 353 SdHoareTripleChecker+Invalid, 159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 156 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 18:30:11,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 353 Invalid, 159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 156 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 18:30:11,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 201 states. [2024-11-18 18:30:11,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 201 to 180. [2024-11-18 18:30:11,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 119 states have (on average 1.319327731092437) internal successors, (157), 120 states have internal predecessors, (157), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-18 18:30:11,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 269 transitions. [2024-11-18 18:30:11,117 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 269 transitions. Word has length 163 [2024-11-18 18:30:11,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:30:11,118 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 269 transitions. [2024-11-18 18:30:11,119 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.5) internal successors, (36), 8 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:11,119 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 269 transitions. [2024-11-18 18:30:11,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 18:30:11,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:30:11,123 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:30:11,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 18:30:11,123 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:30:11,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:30:11,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1607374928, now seen corresponding path program 1 times [2024-11-18 18:30:11,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:30:11,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1949227648] [2024-11-18 18:30:11,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:30:11,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:30:11,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:30:16,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:30:16,233 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:30:16,233 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1949227648] [2024-11-18 18:30:16,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1949227648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:30:16,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:30:16,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 18:30:16,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [62313414] [2024-11-18 18:30:16,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:30:16,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 18:30:16,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:30:16,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 18:30:16,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2024-11-18 18:30:16,235 INFO L87 Difference]: Start difference. First operand 180 states and 269 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:20,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:30:20,312 INFO L93 Difference]: Finished difference Result 457 states and 658 transitions. [2024-11-18 18:30:20,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-18 18:30:20,314 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-18 18:30:20,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:30:20,316 INFO L225 Difference]: With dead ends: 457 [2024-11-18 18:30:20,316 INFO L226 Difference]: Without dead ends: 337 [2024-11-18 18:30:20,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 186 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=264, Invalid=728, Unknown=0, NotChecked=0, Total=992 [2024-11-18 18:30:20,318 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 633 mSDsluCounter, 468 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 567 SdHoareTripleChecker+Invalid, 742 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-18 18:30:20,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 567 Invalid, 742 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-18 18:30:20,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 337 states. [2024-11-18 18:30:20,338 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 337 to 183. [2024-11-18 18:30:20,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 122 states have (on average 1.3278688524590163) internal successors, (162), 123 states have internal predecessors, (162), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-18 18:30:20,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 274 transitions. [2024-11-18 18:30:20,341 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 274 transitions. Word has length 163 [2024-11-18 18:30:20,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:30:20,342 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 274 transitions. [2024-11-18 18:30:20,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:20,342 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 274 transitions. [2024-11-18 18:30:20,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 18:30:20,344 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:30:20,344 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:30:20,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 18:30:20,344 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:30:20,345 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:30:20,345 INFO L85 PathProgramCache]: Analyzing trace with hash -2000401938, now seen corresponding path program 1 times [2024-11-18 18:30:20,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:30:20,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654342110] [2024-11-18 18:30:20,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:30:20,346 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:30:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:30:25,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:30:25,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:30:25,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654342110] [2024-11-18 18:30:25,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [654342110] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:30:25,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:30:25,066 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-11-18 18:30:25,066 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384756037] [2024-11-18 18:30:25,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:30:25,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-18 18:30:25,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:30:25,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-18 18:30:25,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-18 18:30:25,067 INFO L87 Difference]: Start difference. First operand 183 states and 274 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:25,717 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:30:25,717 INFO L93 Difference]: Finished difference Result 362 states and 532 transitions. [2024-11-18 18:30:25,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-18 18:30:25,718 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-18 18:30:25,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:30:25,720 INFO L225 Difference]: With dead ends: 362 [2024-11-18 18:30:25,720 INFO L226 Difference]: Without dead ends: 242 [2024-11-18 18:30:25,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-18 18:30:25,721 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 178 mSDsluCounter, 317 mSDsCounter, 0 mSdLazyCounter, 221 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 420 SdHoareTripleChecker+Invalid, 227 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 221 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-18 18:30:25,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 420 Invalid, 227 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 221 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-18 18:30:25,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 242 states. [2024-11-18 18:30:25,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 242 to 190. [2024-11-18 18:30:25,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 129 states have (on average 1.3488372093023255) internal successors, (174), 130 states have internal predecessors, (174), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-18 18:30:25,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 286 transitions. [2024-11-18 18:30:25,744 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 286 transitions. Word has length 163 [2024-11-18 18:30:25,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:30:25,746 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 286 transitions. [2024-11-18 18:30:25,746 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 9 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:25,747 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 286 transitions. [2024-11-18 18:30:25,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 18:30:25,748 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:30:25,748 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:30:25,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 18:30:25,749 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:30:25,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:30:25,749 INFO L85 PathProgramCache]: Analyzing trace with hash -906310350, now seen corresponding path program 1 times [2024-11-18 18:30:25,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:30:25,749 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931353368] [2024-11-18 18:30:25,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:30:25,749 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:30:25,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 18:30:30,456 INFO L134 CoverageAnalysis]: Checked inductivity of 1300 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1300 trivial. 0 not checked. [2024-11-18 18:30:30,457 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 18:30:30,457 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931353368] [2024-11-18 18:30:30,457 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931353368] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 18:30:30,457 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 18:30:30,457 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-18 18:30:30,457 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009730885] [2024-11-18 18:30:30,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 18:30:30,458 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-18 18:30:30,458 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 18:30:30,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-18 18:30:30,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2024-11-18 18:30:30,460 INFO L87 Difference]: Start difference. First operand 190 states and 286 transitions. Second operand has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:34,454 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 18:30:34,456 INFO L93 Difference]: Finished difference Result 473 states and 692 transitions. [2024-11-18 18:30:34,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-18 18:30:34,457 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) Word has length 163 [2024-11-18 18:30:34,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 18:30:34,460 INFO L225 Difference]: With dead ends: 473 [2024-11-18 18:30:34,460 INFO L226 Difference]: Without dead ends: 346 [2024-11-18 18:30:34,461 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=214, Invalid=598, Unknown=0, NotChecked=0, Total=812 [2024-11-18 18:30:34,462 INFO L432 NwaCegarLoop]: 99 mSDtfsCounter, 387 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 779 mSolverCounterSat, 83 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 83 IncrementalHoareTripleChecker+Valid, 779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-18 18:30:34,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 592 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [83 Valid, 779 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-18 18:30:34,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 346 states. [2024-11-18 18:30:34,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 346 to 191. [2024-11-18 18:30:34,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 130 states have (on average 1.353846153846154) internal successors, (176), 131 states have internal predecessors, (176), 56 states have call successors, (56), 4 states have call predecessors, (56), 4 states have return successors, (56), 55 states have call predecessors, (56), 56 states have call successors, (56) [2024-11-18 18:30:34,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 288 transitions. [2024-11-18 18:30:34,489 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 288 transitions. Word has length 163 [2024-11-18 18:30:34,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 18:30:34,489 INFO L471 AbstractCegarLoop]: Abstraction has 191 states and 288 transitions. [2024-11-18 18:30:34,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.0) internal successors, (36), 12 states have internal predecessors, (36), 1 states have call successors, (26), 1 states have call predecessors, (26), 1 states have return successors, (26), 1 states have call predecessors, (26), 1 states have call successors, (26) [2024-11-18 18:30:34,489 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 288 transitions. [2024-11-18 18:30:34,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2024-11-18 18:30:34,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 18:30:34,490 INFO L215 NwaCegarLoop]: trace histogram [26, 26, 26, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-18 18:30:34,491 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 18:30:34,491 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 18:30:34,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 18:30:34,491 INFO L85 PathProgramCache]: Analyzing trace with hash -1299337360, now seen corresponding path program 1 times [2024-11-18 18:30:34,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 18:30:34,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632791649] [2024-11-18 18:30:34,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 18:30:34,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 18:30:34,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat