./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c --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/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c -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 584cb00847e346bcb7b5af30068947c52ce3c4d690063caf12c5ab86dbf7ec89 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-18 14:44:59,966 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-18 14:45:00,025 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-18 14:45:00,030 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-18 14:45:00,031 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-18 14:45:00,056 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-18 14:45:00,057 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-18 14:45:00,057 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-18 14:45:00,058 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-18 14:45:00,059 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-18 14:45:00,059 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-18 14:45:00,060 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-18 14:45:00,060 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-18 14:45:00,061 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-18 14:45:00,062 INFO L153 SettingsManager]: * Use SBE=true [2024-11-18 14:45:00,062 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-18 14:45:00,062 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-18 14:45:00,062 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-18 14:45:00,062 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-18 14:45:00,063 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-18 14:45:00,063 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-18 14:45:00,063 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-18 14:45:00,064 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-18 14:45:00,064 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-18 14:45:00,066 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-18 14:45:00,066 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-18 14:45:00,066 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-18 14:45:00,066 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-18 14:45:00,067 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-18 14:45:00,067 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-18 14:45:00,067 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-18 14:45:00,067 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-18 14:45:00,067 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:45:00,068 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-18 14:45:00,068 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-18 14:45:00,068 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-18 14:45:00,068 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-18 14:45:00,068 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-18 14:45:00,068 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-18 14:45:00,068 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-18 14:45:00,069 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-18 14:45:00,073 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-18 14:45:00,073 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 584cb00847e346bcb7b5af30068947c52ce3c4d690063caf12c5ab86dbf7ec89 [2024-11-18 14:45:00,289 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-18 14:45:00,321 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-18 14:45:00,323 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-18 14:45:00,324 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-18 14:45:00,325 INFO L274 PluginConnector]: CDTParser initialized [2024-11-18 14:45:00,326 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2024-11-18 14:45:01,679 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-18 14:45:01,961 INFO L384 CDTParser]: Found 1 translation units. [2024-11-18 14:45:01,966 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2024-11-18 14:45:01,987 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3ae8c0e/0a1b330e4d8d45fd8488c2acd6cd1a72/FLAG4bc9bf6dd [2024-11-18 14:45:02,289 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d3ae8c0e/0a1b330e4d8d45fd8488c2acd6cd1a72 [2024-11-18 14:45:02,291 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-18 14:45:02,292 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-18 14:45:02,296 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-18 14:45:02,297 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-18 14:45:02,300 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-18 14:45:02,301 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,303 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a010388 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02, skipping insertion in model container [2024-11-18 14:45:02,303 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,364 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-18 14:45:02,645 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/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c[26490,26503] [2024-11-18 14:45:02,648 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:45:02,657 INFO L200 MainTranslator]: Completed pre-run [2024-11-18 14:45:02,702 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/seq-mthreaded/pals_lcr.8.1.ufo.BOUNDED-16.pals.c[26490,26503] [2024-11-18 14:45:02,702 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-18 14:45:02,722 INFO L204 MainTranslator]: Completed translation [2024-11-18 14:45:02,722 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02 WrapperNode [2024-11-18 14:45:02,722 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-18 14:45:02,723 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-18 14:45:02,723 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-18 14:45:02,723 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-18 14:45:02,728 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,745 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,789 INFO L138 Inliner]: procedures = 27, calls = 19, calls flagged for inlining = 14, calls inlined = 14, statements flattened = 533 [2024-11-18 14:45:02,789 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-18 14:45:02,789 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-18 14:45:02,789 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-18 14:45:02,790 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-18 14:45:02,799 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,799 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,802 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,814 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 14:45:02,814 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,814 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,822 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,829 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,830 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,832 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,835 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-18 14:45:02,836 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-18 14:45:02,836 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-18 14:45:02,836 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-18 14:45:02,837 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (1/1) ... [2024-11-18 14:45:02,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-18 14:45:02,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-18 14:45:02,874 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 14:45:02,905 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 14:45:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-18 14:45:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-18 14:45:02,957 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-18 14:45:02,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-18 14:45:03,070 INFO L238 CfgBuilder]: Building ICFG [2024-11-18 14:45:03,071 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-18 14:45:03,513 INFO L? ?]: Removed 55 outVars from TransFormulas that were not future-live. [2024-11-18 14:45:03,513 INFO L287 CfgBuilder]: Performing block encoding [2024-11-18 14:45:03,526 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-18 14:45:03,527 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-18 14:45:03,527 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:45:03 BoogieIcfgContainer [2024-11-18 14:45:03,527 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-18 14:45:03,529 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-18 14:45:03,529 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-18 14:45:03,531 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-18 14:45:03,531 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:45:02" (1/3) ... [2024-11-18 14:45:03,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee495de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:45:03, skipping insertion in model container [2024-11-18 14:45:03,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:45:02" (2/3) ... [2024-11-18 14:45:03,532 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ee495de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:45:03, skipping insertion in model container [2024-11-18 14:45:03,532 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:45:03" (3/3) ... [2024-11-18 14:45:03,533 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.8.1.ufo.BOUNDED-16.pals.c [2024-11-18 14:45:03,545 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-18 14:45:03,546 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-18 14:45:03,592 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-18 14:45:03,597 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;@7184891e, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-18 14:45:03,597 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-18 14:45:03,606 INFO L276 IsEmpty]: Start isEmpty. Operand has 131 states, 129 states have (on average 1.7984496124031009) internal successors, (232), 130 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-18 14:45:03,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:03,612 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 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 14:45:03,612 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:03,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:03,616 INFO L85 PathProgramCache]: Analyzing trace with hash 721418122, now seen corresponding path program 1 times [2024-11-18 14:45:03,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:03,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [835092588] [2024-11-18 14:45:03,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:03,624 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:03,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:03,836 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:03,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:03,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [835092588] [2024-11-18 14:45:03,837 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [835092588] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:03,837 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:03,837 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-18 14:45:03,838 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [296849328] [2024-11-18 14:45:03,838 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:03,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-18 14:45:03,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:03,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-18 14:45:03,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:45:03,860 INFO L87 Difference]: Start difference. First operand has 131 states, 129 states have (on average 1.7984496124031009) internal successors, (232), 130 states have internal predecessors, (232), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:03,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:03,881 INFO L93 Difference]: Finished difference Result 196 states and 336 transitions. [2024-11-18 14:45:03,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-18 14:45:03,885 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-18 14:45:03,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:03,891 INFO L225 Difference]: With dead ends: 196 [2024-11-18 14:45:03,891 INFO L226 Difference]: Without dead ends: 127 [2024-11-18 14:45:03,893 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-18 14:45:03,896 INFO L432 NwaCegarLoop]: 229 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:03,896 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 229 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:03,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-18 14:45:03,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-18 14:45:03,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.7857142857142858) internal successors, (225), 126 states have internal predecessors, (225), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:03,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 225 transitions. [2024-11-18 14:45:03,931 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 225 transitions. Word has length 29 [2024-11-18 14:45:03,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:03,933 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 225 transitions. [2024-11-18 14:45:03,933 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:03,934 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 225 transitions. [2024-11-18 14:45:03,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-18 14:45:03,935 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:03,936 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 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 14:45:03,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-18 14:45:03,936 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:03,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:03,937 INFO L85 PathProgramCache]: Analyzing trace with hash 587404616, now seen corresponding path program 1 times [2024-11-18 14:45:03,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:03,938 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1478473100] [2024-11-18 14:45:03,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:03,938 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:04,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:04,262 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:04,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:04,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1478473100] [2024-11-18 14:45:04,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1478473100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:04,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:04,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-18 14:45:04,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054750298] [2024-11-18 14:45:04,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:04,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-18 14:45:04,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:04,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-18 14:45:04,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:04,266 INFO L87 Difference]: Start difference. First operand 127 states and 225 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:04,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:04,381 INFO L93 Difference]: Finished difference Result 191 states and 326 transitions. [2024-11-18 14:45:04,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-18 14:45:04,382 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 29 [2024-11-18 14:45:04,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:04,383 INFO L225 Difference]: With dead ends: 191 [2024-11-18 14:45:04,383 INFO L226 Difference]: Without dead ends: 127 [2024-11-18 14:45:04,383 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-18 14:45:04,384 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 0 mSDsluCounter, 603 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 826 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:04,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 826 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:04,386 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2024-11-18 14:45:04,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2024-11-18 14:45:04,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 126 states have (on average 1.3015873015873016) internal successors, (164), 126 states have internal predecessors, (164), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:04,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 164 transitions. [2024-11-18 14:45:04,395 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 164 transitions. Word has length 29 [2024-11-18 14:45:04,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:04,395 INFO L471 AbstractCegarLoop]: Abstraction has 127 states and 164 transitions. [2024-11-18 14:45:04,396 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:04,396 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 164 transitions. [2024-11-18 14:45:04,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2024-11-18 14:45:04,398 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:04,399 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:04,399 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-18 14:45:04,399 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:04,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:04,400 INFO L85 PathProgramCache]: Analyzing trace with hash -891757768, now seen corresponding path program 1 times [2024-11-18 14:45:04,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:04,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549603834] [2024-11-18 14:45:04,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:04,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:04,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:04,762 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:04,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549603834] [2024-11-18 14:45:04,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [549603834] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:04,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:04,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:45:04,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1549989819] [2024-11-18 14:45:04,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:04,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:45:04,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:04,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:45:04,766 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:45:04,767 INFO L87 Difference]: Start difference. First operand 127 states and 164 transitions. Second operand has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:05,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:05,295 INFO L93 Difference]: Finished difference Result 1087 states and 1716 transitions. [2024-11-18 14:45:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-18 14:45:05,296 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 89 [2024-11-18 14:45:05,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:05,304 INFO L225 Difference]: With dead ends: 1087 [2024-11-18 14:45:05,304 INFO L226 Difference]: Without dead ends: 1027 [2024-11-18 14:45:05,305 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=162, Invalid=344, Unknown=0, NotChecked=0, Total=506 [2024-11-18 14:45:05,305 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 1859 mSDsluCounter, 5108 mSDsCounter, 0 mSdLazyCounter, 383 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 5268 SdHoareTripleChecker+Invalid, 394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 383 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:05,309 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1859 Valid, 5268 Invalid, 394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 383 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:45:05,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1027 states. [2024-11-18 14:45:05,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1027 to 185. [2024-11-18 14:45:05,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 184 states have (on average 1.4021739130434783) internal successors, (258), 184 states have internal predecessors, (258), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:05,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 258 transitions. [2024-11-18 14:45:05,341 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 258 transitions. Word has length 89 [2024-11-18 14:45:05,341 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:05,341 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 258 transitions. [2024-11-18 14:45:05,341 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.9) internal successors, (89), 10 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:05,341 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 258 transitions. [2024-11-18 14:45:05,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 14:45:05,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:05,357 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:05,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-18 14:45:05,358 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:05,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:05,359 INFO L85 PathProgramCache]: Analyzing trace with hash 598555528, now seen corresponding path program 1 times [2024-11-18 14:45:05,359 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:05,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [177143277] [2024-11-18 14:45:05,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:05,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:05,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:05,492 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:05,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [177143277] [2024-11-18 14:45:05,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [177143277] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:05,493 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:05,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:05,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155842268] [2024-11-18 14:45:05,493 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:05,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:05,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:05,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:05,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:05,495 INFO L87 Difference]: Start difference. First operand 185 states and 258 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:05,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:05,510 INFO L93 Difference]: Finished difference Result 410 states and 621 transitions. [2024-11-18 14:45:05,510 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:05,511 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-18 14:45:05,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:05,512 INFO L225 Difference]: With dead ends: 410 [2024-11-18 14:45:05,512 INFO L226 Difference]: Without dead ends: 292 [2024-11-18 14:45:05,513 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 14:45:05,513 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 67 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:05,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 254 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:05,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-18 14:45:05,520 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 290. [2024-11-18 14:45:05,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.4740484429065743) internal successors, (426), 289 states have internal predecessors, (426), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:05,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 426 transitions. [2024-11-18 14:45:05,521 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 426 transitions. Word has length 91 [2024-11-18 14:45:05,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:05,522 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 426 transitions. [2024-11-18 14:45:05,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 3 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:05,522 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 426 transitions. [2024-11-18 14:45:05,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-18 14:45:05,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:05,523 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:05,524 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-18 14:45:05,524 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:05,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:05,524 INFO L85 PathProgramCache]: Analyzing trace with hash 665049040, now seen corresponding path program 1 times [2024-11-18 14:45:05,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:05,525 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677210333] [2024-11-18 14:45:05,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:05,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:05,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:05,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:05,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:05,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677210333] [2024-11-18 14:45:05,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677210333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:05,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:05,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:45:05,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1924444471] [2024-11-18 14:45:05,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:05,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:45:05,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:05,958 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:45:05,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:45:05,959 INFO L87 Difference]: Start difference. First operand 290 states and 426 transitions. Second operand has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:06,297 INFO L93 Difference]: Finished difference Result 515 states and 786 transitions. [2024-11-18 14:45:06,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:45:06,298 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 91 [2024-11-18 14:45:06,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:06,299 INFO L225 Difference]: With dead ends: 515 [2024-11-18 14:45:06,299 INFO L226 Difference]: Without dead ends: 292 [2024-11-18 14:45:06,300 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-18 14:45:06,301 INFO L432 NwaCegarLoop]: 154 mSDtfsCounter, 419 mSDsluCounter, 667 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 821 SdHoareTripleChecker+Invalid, 142 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:06,301 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 821 Invalid, 142 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-18 14:45:06,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-18 14:45:06,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 290. [2024-11-18 14:45:06,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290 states, 289 states have (on average 1.467128027681661) internal successors, (424), 289 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 424 transitions. [2024-11-18 14:45:06,309 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 424 transitions. Word has length 91 [2024-11-18 14:45:06,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:06,309 INFO L471 AbstractCegarLoop]: Abstraction has 290 states and 424 transitions. [2024-11-18 14:45:06,309 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 9.1) internal successors, (91), 10 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,309 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 424 transitions. [2024-11-18 14:45:06,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-18 14:45:06,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:06,311 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:06,311 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-18 14:45:06,311 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:06,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:06,311 INFO L85 PathProgramCache]: Analyzing trace with hash -1273039064, now seen corresponding path program 1 times [2024-11-18 14:45:06,312 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:06,312 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221147276] [2024-11-18 14:45:06,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:06,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:06,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:06,543 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:06,543 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221147276] [2024-11-18 14:45:06,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221147276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:06,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:06,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-18 14:45:06,544 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472738616] [2024-11-18 14:45:06,544 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:06,544 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-18 14:45:06,544 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:06,545 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-18 14:45:06,545 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:45:06,545 INFO L87 Difference]: Start difference. First operand 290 states and 424 transitions. Second operand has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:06,577 INFO L93 Difference]: Finished difference Result 298 states and 433 transitions. [2024-11-18 14:45:06,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-18 14:45:06,577 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 92 [2024-11-18 14:45:06,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:06,579 INFO L225 Difference]: With dead ends: 298 [2024-11-18 14:45:06,579 INFO L226 Difference]: Without dead ends: 296 [2024-11-18 14:45:06,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-18 14:45:06,580 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 0 mSDsluCounter, 935 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1093 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:06,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1093 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:06,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2024-11-18 14:45:06,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2024-11-18 14:45:06,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 296 states, 295 states have (on average 1.4542372881355932) internal successors, (429), 295 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 429 transitions. [2024-11-18 14:45:06,599 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 429 transitions. Word has length 92 [2024-11-18 14:45:06,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:06,600 INFO L471 AbstractCegarLoop]: Abstraction has 296 states and 429 transitions. [2024-11-18 14:45:06,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.5) internal successors, (92), 8 states have internal predecessors, (92), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,600 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 429 transitions. [2024-11-18 14:45:06,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 14:45:06,601 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:06,601 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:06,601 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-18 14:45:06,601 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:06,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:06,601 INFO L85 PathProgramCache]: Analyzing trace with hash -559062096, now seen corresponding path program 1 times [2024-11-18 14:45:06,602 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:06,602 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736789768] [2024-11-18 14:45:06,602 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:06,602 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:06,661 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:06,661 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736789768] [2024-11-18 14:45:06,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736789768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:06,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:06,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:06,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1784736066] [2024-11-18 14:45:06,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:06,662 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:06,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:06,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:06,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:06,662 INFO L87 Difference]: Start difference. First operand 296 states and 429 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:06,677 INFO L93 Difference]: Finished difference Result 538 states and 810 transitions. [2024-11-18 14:45:06,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:06,678 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-18 14:45:06,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:06,680 INFO L225 Difference]: With dead ends: 538 [2024-11-18 14:45:06,681 INFO L226 Difference]: Without dead ends: 414 [2024-11-18 14:45:06,681 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 14:45:06,682 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 87 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:06,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 344 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:06,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-18 14:45:06,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 412. [2024-11-18 14:45:06,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412 states, 411 states have (on average 1.4841849148418491) internal successors, (610), 411 states have internal predecessors, (610), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 610 transitions. [2024-11-18 14:45:06,692 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 610 transitions. Word has length 93 [2024-11-18 14:45:06,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:06,693 INFO L471 AbstractCegarLoop]: Abstraction has 412 states and 610 transitions. [2024-11-18 14:45:06,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,693 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 610 transitions. [2024-11-18 14:45:06,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 14:45:06,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:06,694 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:06,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-18 14:45:06,694 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:06,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:06,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1753924784, now seen corresponding path program 1 times [2024-11-18 14:45:06,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:06,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812709722] [2024-11-18 14:45:06,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:06,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:06,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:06,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:06,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:06,763 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812709722] [2024-11-18 14:45:06,763 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812709722] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:06,763 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:06,763 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:06,763 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950543190] [2024-11-18 14:45:06,763 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:06,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:06,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:06,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:06,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:06,764 INFO L87 Difference]: Start difference. First operand 412 states and 610 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:06,784 INFO L93 Difference]: Finished difference Result 1074 states and 1650 transitions. [2024-11-18 14:45:06,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:06,784 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-18 14:45:06,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:06,787 INFO L225 Difference]: With dead ends: 1074 [2024-11-18 14:45:06,787 INFO L226 Difference]: Without dead ends: 731 [2024-11-18 14:45:06,787 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 14:45:06,788 INFO L432 NwaCegarLoop]: 248 mSDtfsCounter, 85 mSDsluCounter, 102 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:06,788 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:06,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 731 states. [2024-11-18 14:45:06,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 731 to 729. [2024-11-18 14:45:06,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 729 states, 728 states have (on average 1.5137362637362637) internal successors, (1102), 728 states have internal predecessors, (1102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 729 states to 729 states and 1102 transitions. [2024-11-18 14:45:06,803 INFO L78 Accepts]: Start accepts. Automaton has 729 states and 1102 transitions. Word has length 93 [2024-11-18 14:45:06,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:06,803 INFO L471 AbstractCegarLoop]: Abstraction has 729 states and 1102 transitions. [2024-11-18 14:45:06,803 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,803 INFO L276 IsEmpty]: Start isEmpty. Operand 729 states and 1102 transitions. [2024-11-18 14:45:06,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 14:45:06,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:06,805 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:06,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-18 14:45:06,805 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:06,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:06,805 INFO L85 PathProgramCache]: Analyzing trace with hash -598973008, now seen corresponding path program 1 times [2024-11-18 14:45:06,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:06,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631633609] [2024-11-18 14:45:06,806 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:06,806 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:06,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:06,865 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:06,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:06,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631633609] [2024-11-18 14:45:06,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631633609] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:06,866 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:06,866 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:06,866 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941235789] [2024-11-18 14:45:06,866 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:06,866 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:06,867 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:06,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:06,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:06,868 INFO L87 Difference]: Start difference. First operand 729 states and 1102 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:06,893 INFO L93 Difference]: Finished difference Result 2001 states and 3084 transitions. [2024-11-18 14:45:06,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:06,894 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-18 14:45:06,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:06,897 INFO L225 Difference]: With dead ends: 2001 [2024-11-18 14:45:06,898 INFO L226 Difference]: Without dead ends: 1341 [2024-11-18 14:45:06,898 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 14:45:06,900 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 83 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:06,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 352 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:06,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1341 states. [2024-11-18 14:45:06,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1341 to 1339. [2024-11-18 14:45:06,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1339 states, 1338 states have (on average 1.5231689088191331) internal successors, (2038), 1338 states have internal predecessors, (2038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1339 states to 1339 states and 2038 transitions. [2024-11-18 14:45:06,944 INFO L78 Accepts]: Start accepts. Automaton has 1339 states and 2038 transitions. Word has length 93 [2024-11-18 14:45:06,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:06,944 INFO L471 AbstractCegarLoop]: Abstraction has 1339 states and 2038 transitions. [2024-11-18 14:45:06,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:06,944 INFO L276 IsEmpty]: Start isEmpty. Operand 1339 states and 2038 transitions. [2024-11-18 14:45:06,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 14:45:06,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:06,945 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:06,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-18 14:45:06,945 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:06,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:06,946 INFO L85 PathProgramCache]: Analyzing trace with hash -436058448, now seen corresponding path program 1 times [2024-11-18 14:45:06,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:06,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1601683615] [2024-11-18 14:45:06,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:06,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:06,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:07,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:07,014 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:07,014 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1601683615] [2024-11-18 14:45:07,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1601683615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:07,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:07,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:07,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604274886] [2024-11-18 14:45:07,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:07,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:07,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:07,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:07,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:07,016 INFO L87 Difference]: Start difference. First operand 1339 states and 2038 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:07,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:07,060 INFO L93 Difference]: Finished difference Result 3783 states and 5808 transitions. [2024-11-18 14:45:07,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:07,061 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-18 14:45:07,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:07,069 INFO L225 Difference]: With dead ends: 3783 [2024-11-18 14:45:07,069 INFO L226 Difference]: Without dead ends: 2513 [2024-11-18 14:45:07,071 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 14:45:07,071 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 81 mSDsluCounter, 110 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:07,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 354 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:07,073 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2513 states. [2024-11-18 14:45:07,112 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2513 to 2511. [2024-11-18 14:45:07,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2511 states, 2510 states have (on average 1.5195219123505976) internal successors, (3814), 2510 states have internal predecessors, (3814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:07,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2511 states to 2511 states and 3814 transitions. [2024-11-18 14:45:07,120 INFO L78 Accepts]: Start accepts. Automaton has 2511 states and 3814 transitions. Word has length 93 [2024-11-18 14:45:07,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:07,121 INFO L471 AbstractCegarLoop]: Abstraction has 2511 states and 3814 transitions. [2024-11-18 14:45:07,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:07,121 INFO L276 IsEmpty]: Start isEmpty. Operand 2511 states and 3814 transitions. [2024-11-18 14:45:07,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 14:45:07,122 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:07,122 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:07,122 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-18 14:45:07,122 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:07,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:07,123 INFO L85 PathProgramCache]: Analyzing trace with hash 1066059952, now seen corresponding path program 1 times [2024-11-18 14:45:07,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:07,123 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [647523998] [2024-11-18 14:45:07,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:07,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:07,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:07,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:07,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:07,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [647523998] [2024-11-18 14:45:07,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [647523998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:07,196 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:07,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:07,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390627359] [2024-11-18 14:45:07,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:07,197 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:07,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:07,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:07,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:07,197 INFO L87 Difference]: Start difference. First operand 2511 states and 3814 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:07,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:07,297 INFO L93 Difference]: Finished difference Result 7203 states and 10968 transitions. [2024-11-18 14:45:07,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:07,298 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-18 14:45:07,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:07,313 INFO L225 Difference]: With dead ends: 7203 [2024-11-18 14:45:07,314 INFO L226 Difference]: Without dead ends: 4761 [2024-11-18 14:45:07,319 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 14:45:07,320 INFO L432 NwaCegarLoop]: 232 mSDtfsCounter, 77 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 77 SdHoareTripleChecker+Valid, 350 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:07,320 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [77 Valid, 350 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:07,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4761 states. [2024-11-18 14:45:07,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4761 to 4759. [2024-11-18 14:45:07,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4759 states, 4758 states have (on average 1.5077763766288357) internal successors, (7174), 4758 states have internal predecessors, (7174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:07,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4759 states to 4759 states and 7174 transitions. [2024-11-18 14:45:07,440 INFO L78 Accepts]: Start accepts. Automaton has 4759 states and 7174 transitions. Word has length 93 [2024-11-18 14:45:07,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:07,440 INFO L471 AbstractCegarLoop]: Abstraction has 4759 states and 7174 transitions. [2024-11-18 14:45:07,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:07,441 INFO L276 IsEmpty]: Start isEmpty. Operand 4759 states and 7174 transitions. [2024-11-18 14:45:07,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 14:45:07,441 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:07,441 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:07,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-18 14:45:07,442 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:07,442 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:07,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1149408848, now seen corresponding path program 1 times [2024-11-18 14:45:07,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:07,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664964127] [2024-11-18 14:45:07,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:07,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:07,569 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:07,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:07,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664964127] [2024-11-18 14:45:07,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664964127] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:07,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:07,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:07,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926032974] [2024-11-18 14:45:07,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:07,570 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:07,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:07,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:07,571 INFO L87 Difference]: Start difference. First operand 4759 states and 7174 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:07,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:07,785 INFO L93 Difference]: Finished difference Result 13755 states and 20712 transitions. [2024-11-18 14:45:07,786 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:07,786 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-18 14:45:07,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:07,819 INFO L225 Difference]: With dead ends: 13755 [2024-11-18 14:45:07,819 INFO L226 Difference]: Without dead ends: 9065 [2024-11-18 14:45:07,827 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 14:45:07,827 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 75 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:07,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 352 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9065 states. [2024-11-18 14:45:08,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9065 to 9063. [2024-11-18 14:45:08,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9063 states, 9062 states have (on average 1.490840873979254) internal successors, (13510), 9062 states have internal predecessors, (13510), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:08,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9063 states to 9063 states and 13510 transitions. [2024-11-18 14:45:08,106 INFO L78 Accepts]: Start accepts. Automaton has 9063 states and 13510 transitions. Word has length 93 [2024-11-18 14:45:08,107 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:08,107 INFO L471 AbstractCegarLoop]: Abstraction has 9063 states and 13510 transitions. [2024-11-18 14:45:08,107 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:08,107 INFO L276 IsEmpty]: Start isEmpty. Operand 9063 states and 13510 transitions. [2024-11-18 14:45:08,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 14:45:08,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:08,108 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:08,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-18 14:45:08,109 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:08,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:08,109 INFO L85 PathProgramCache]: Analyzing trace with hash 631524016, now seen corresponding path program 1 times [2024-11-18 14:45:08,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:08,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363354703] [2024-11-18 14:45:08,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:08,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:08,251 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:08,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:08,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363354703] [2024-11-18 14:45:08,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363354703] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:08,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:08,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:08,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351420791] [2024-11-18 14:45:08,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:08,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:08,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:08,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:08,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:08,254 INFO L87 Difference]: Start difference. First operand 9063 states and 13510 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:08,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:08,483 INFO L93 Difference]: Finished difference Result 26283 states and 39048 transitions. [2024-11-18 14:45:08,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:08,484 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-18 14:45:08,484 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:08,548 INFO L225 Difference]: With dead ends: 26283 [2024-11-18 14:45:08,550 INFO L226 Difference]: Without dead ends: 17289 [2024-11-18 14:45:08,565 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 14:45:08,566 INFO L432 NwaCegarLoop]: 228 mSDtfsCounter, 73 mSDsluCounter, 126 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 354 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:08,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 354 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:08,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17289 states. [2024-11-18 14:45:08,991 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17289 to 17287. [2024-11-18 14:45:09,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17287 states, 17286 states have (on average 1.4702071040148097) internal successors, (25414), 17286 states have internal predecessors, (25414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:09,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17287 states to 17287 states and 25414 transitions. [2024-11-18 14:45:09,142 INFO L78 Accepts]: Start accepts. Automaton has 17287 states and 25414 transitions. Word has length 93 [2024-11-18 14:45:09,143 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:09,143 INFO L471 AbstractCegarLoop]: Abstraction has 17287 states and 25414 transitions. [2024-11-18 14:45:09,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:09,143 INFO L276 IsEmpty]: Start isEmpty. Operand 17287 states and 25414 transitions. [2024-11-18 14:45:09,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-18 14:45:09,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:09,144 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:09,144 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-18 14:45:09,144 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:09,145 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:09,145 INFO L85 PathProgramCache]: Analyzing trace with hash -172202064, now seen corresponding path program 1 times [2024-11-18 14:45:09,145 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:09,145 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79564456] [2024-11-18 14:45:09,146 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:09,146 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:09,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:09,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-18 14:45:09,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:09,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79564456] [2024-11-18 14:45:09,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79564456] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:09,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:09,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-18 14:45:09,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016165873] [2024-11-18 14:45:09,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:09,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-18 14:45:09,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:09,212 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-18 14:45:09,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-18 14:45:09,212 INFO L87 Difference]: Start difference. First operand 17287 states and 25414 transitions. Second operand has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:09,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:09,628 INFO L93 Difference]: Finished difference Result 50187 states and 73416 transitions. [2024-11-18 14:45:09,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-18 14:45:09,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 93 [2024-11-18 14:45:09,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:09,680 INFO L225 Difference]: With dead ends: 50187 [2024-11-18 14:45:09,680 INFO L226 Difference]: Without dead ends: 32969 [2024-11-18 14:45:09,701 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 14:45:09,701 INFO L432 NwaCegarLoop]: 242 mSDtfsCounter, 79 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:09,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 356 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-18 14:45:09,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32969 states. [2024-11-18 14:45:10,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32969 to 32967. [2024-11-18 14:45:10,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32967 states, 32966 states have (on average 1.446520657647273) internal successors, (47686), 32966 states have internal predecessors, (47686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:10,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32967 states to 32967 states and 47686 transitions. [2024-11-18 14:45:10,755 INFO L78 Accepts]: Start accepts. Automaton has 32967 states and 47686 transitions. Word has length 93 [2024-11-18 14:45:10,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:10,755 INFO L471 AbstractCegarLoop]: Abstraction has 32967 states and 47686 transitions. [2024-11-18 14:45:10,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.0) internal successors, (93), 3 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:10,756 INFO L276 IsEmpty]: Start isEmpty. Operand 32967 states and 47686 transitions. [2024-11-18 14:45:10,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 14:45:10,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:10,764 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:10,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-18 14:45:10,765 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:10,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:10,765 INFO L85 PathProgramCache]: Analyzing trace with hash 2039542488, now seen corresponding path program 1 times [2024-11-18 14:45:10,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:10,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607928886] [2024-11-18 14:45:10,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:10,766 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:10,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:11,308 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-18 14:45:11,309 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:11,309 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607928886] [2024-11-18 14:45:11,309 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607928886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:11,309 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:11,309 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:45:11,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1850404139] [2024-11-18 14:45:11,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:11,310 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:45:11,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:11,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:45:11,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:45:11,311 INFO L87 Difference]: Start difference. First operand 32967 states and 47686 transitions. Second operand has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:14,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:14,824 INFO L93 Difference]: Finished difference Result 292953 states and 423759 transitions. [2024-11-18 14:45:14,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:45:14,825 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-18 14:45:14,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:15,555 INFO L225 Difference]: With dead ends: 292953 [2024-11-18 14:45:15,556 INFO L226 Difference]: Without dead ends: 269911 [2024-11-18 14:45:15,636 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:45:15,637 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 1637 mSDsluCounter, 2279 mSDsCounter, 0 mSdLazyCounter, 298 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1637 SdHoareTripleChecker+Valid, 2541 SdHoareTripleChecker+Invalid, 305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 298 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:15,637 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1637 Valid, 2541 Invalid, 305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 298 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:45:15,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 269911 states. [2024-11-18 14:45:19,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 269911 to 60999. [2024-11-18 14:45:19,336 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60999 states, 60998 states have (on average 1.4406701859077347) internal successors, (87878), 60998 states have internal predecessors, (87878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:19,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60999 states to 60999 states and 87878 transitions. [2024-11-18 14:45:19,495 INFO L78 Accepts]: Start accepts. Automaton has 60999 states and 87878 transitions. Word has length 118 [2024-11-18 14:45:19,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:19,496 INFO L471 AbstractCegarLoop]: Abstraction has 60999 states and 87878 transitions. [2024-11-18 14:45:19,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.7) internal successors, (117), 10 states have internal predecessors, (117), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:19,496 INFO L276 IsEmpty]: Start isEmpty. Operand 60999 states and 87878 transitions. [2024-11-18 14:45:19,505 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 14:45:19,505 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:19,505 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:19,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-18 14:45:19,506 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:19,506 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:19,506 INFO L85 PathProgramCache]: Analyzing trace with hash 57562072, now seen corresponding path program 1 times [2024-11-18 14:45:19,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:19,507 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485052732] [2024-11-18 14:45:19,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:19,507 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-18 14:45:19,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:19,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485052732] [2024-11-18 14:45:19,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485052732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:19,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:19,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:45:19,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953398169] [2024-11-18 14:45:19,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:19,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:45:19,849 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:19,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:45:19,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:45:19,850 INFO L87 Difference]: Start difference. First operand 60999 states and 87878 transitions. Second operand has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:24,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:24,323 INFO L93 Difference]: Finished difference Result 325849 states and 471119 transitions. [2024-11-18 14:45:24,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:45:24,324 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-18 14:45:24,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:24,955 INFO L225 Difference]: With dead ends: 325849 [2024-11-18 14:45:24,956 INFO L226 Difference]: Without dead ends: 292951 [2024-11-18 14:45:25,064 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:45:25,066 INFO L432 NwaCegarLoop]: 261 mSDtfsCounter, 1639 mSDsluCounter, 2225 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1639 SdHoareTripleChecker+Valid, 2486 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:25,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1639 Valid, 2486 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:45:25,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292951 states. [2024-11-18 14:45:29,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292951 to 105415. [2024-11-18 14:45:29,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105415 states, 105414 states have (on average 1.4371335875690137) internal successors, (151494), 105414 states have internal predecessors, (151494), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:29,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105415 states to 105415 states and 151494 transitions. [2024-11-18 14:45:29,780 INFO L78 Accepts]: Start accepts. Automaton has 105415 states and 151494 transitions. Word has length 118 [2024-11-18 14:45:29,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:29,780 INFO L471 AbstractCegarLoop]: Abstraction has 105415 states and 151494 transitions. [2024-11-18 14:45:29,780 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.5) internal successors, (115), 10 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:29,780 INFO L276 IsEmpty]: Start isEmpty. Operand 105415 states and 151494 transitions. [2024-11-18 14:45:29,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 14:45:29,791 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:29,791 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:29,791 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-18 14:45:29,791 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:29,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:29,791 INFO L85 PathProgramCache]: Analyzing trace with hash 1999631576, now seen corresponding path program 1 times [2024-11-18 14:45:29,792 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:29,792 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503578279] [2024-11-18 14:45:29,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:29,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:29,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:30,279 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-18 14:45:30,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:30,279 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503578279] [2024-11-18 14:45:30,279 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503578279] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:30,279 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:30,279 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:45:30,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735385108] [2024-11-18 14:45:30,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:30,280 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:45:30,280 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:30,281 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:45:30,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:45:30,281 INFO L87 Difference]: Start difference. First operand 105415 states and 151494 transitions. Second operand has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:36,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:36,741 INFO L93 Difference]: Finished difference Result 358745 states and 518351 transitions. [2024-11-18 14:45:36,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:45:36,742 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-18 14:45:36,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:37,314 INFO L225 Difference]: With dead ends: 358745 [2024-11-18 14:45:37,314 INFO L226 Difference]: Without dead ends: 325847 [2024-11-18 14:45:37,415 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:45:37,415 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 1663 mSDsluCounter, 2111 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1663 SdHoareTripleChecker+Valid, 2370 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:37,416 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1663 Valid, 2370 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:45:37,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325847 states. [2024-11-18 14:45:42,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325847 to 138311. [2024-11-18 14:45:42,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138311 states, 138310 states have (on average 1.4368158484563662) internal successors, (198726), 138310 states have internal predecessors, (198726), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:43,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138311 states to 138311 states and 198726 transitions. [2024-11-18 14:45:43,268 INFO L78 Accepts]: Start accepts. Automaton has 138311 states and 198726 transitions. Word has length 118 [2024-11-18 14:45:43,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:43,269 INFO L471 AbstractCegarLoop]: Abstraction has 138311 states and 198726 transitions. [2024-11-18 14:45:43,269 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.3) internal successors, (113), 10 states have internal predecessors, (113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:43,269 INFO L276 IsEmpty]: Start isEmpty. Operand 138311 states and 198726 transitions. [2024-11-18 14:45:43,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 14:45:43,285 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:43,285 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:43,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-18 14:45:43,286 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:43,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:43,287 INFO L85 PathProgramCache]: Analyzing trace with hash -2132421160, now seen corresponding path program 1 times [2024-11-18 14:45:43,287 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:43,287 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997597285] [2024-11-18 14:45:43,287 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:43,287 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:43,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:43,721 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-18 14:45:43,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:43,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997597285] [2024-11-18 14:45:43,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997597285] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:43,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:43,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:45:43,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [583646598] [2024-11-18 14:45:43,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:43,723 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:45:43,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:43,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:45:43,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:45:43,724 INFO L87 Difference]: Start difference. First operand 138311 states and 198726 transitions. Second operand has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:50,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:45:50,773 INFO L93 Difference]: Finished difference Result 391641 states and 565583 transitions. [2024-11-18 14:45:50,773 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:45:50,774 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-18 14:45:50,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-18 14:45:51,587 INFO L225 Difference]: With dead ends: 391641 [2024-11-18 14:45:51,587 INFO L226 Difference]: Without dead ends: 358743 [2024-11-18 14:45:51,668 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=88, Invalid=184, Unknown=0, NotChecked=0, Total=272 [2024-11-18 14:45:51,668 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 1753 mSDsluCounter, 2028 mSDsCounter, 0 mSdLazyCounter, 242 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1753 SdHoareTripleChecker+Valid, 2285 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 242 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-18 14:45:51,668 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1753 Valid, 2285 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 242 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-18 14:45:51,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358743 states. [2024-11-18 14:45:57,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358743 to 171207. [2024-11-18 14:45:58,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171207 states, 171206 states have (on average 1.4366202119084612) internal successors, (245958), 171206 states have internal predecessors, (245958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:58,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171207 states to 171207 states and 245958 transitions. [2024-11-18 14:45:58,436 INFO L78 Accepts]: Start accepts. Automaton has 171207 states and 245958 transitions. Word has length 118 [2024-11-18 14:45:58,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-18 14:45:58,437 INFO L471 AbstractCegarLoop]: Abstraction has 171207 states and 245958 transitions. [2024-11-18 14:45:58,437 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 11.1) internal successors, (111), 10 states have internal predecessors, (111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:45:58,438 INFO L276 IsEmpty]: Start isEmpty. Operand 171207 states and 245958 transitions. [2024-11-18 14:45:58,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-11-18 14:45:58,450 INFO L207 NwaCegarLoop]: Found error trace [2024-11-18 14:45:58,450 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 14:45:58,450 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-18 14:45:58,450 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-18 14:45:58,451 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-18 14:45:58,451 INFO L85 PathProgramCache]: Analyzing trace with hash -630302760, now seen corresponding path program 1 times [2024-11-18 14:45:58,451 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-18 14:45:58,451 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072169645] [2024-11-18 14:45:58,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-18 14:45:58,451 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-18 14:45:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-18 14:45:58,684 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-18 14:45:58,684 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-18 14:45:58,684 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072169645] [2024-11-18 14:45:58,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072169645] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-18 14:45:58,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-18 14:45:58,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-18 14:45:58,684 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080938915] [2024-11-18 14:45:58,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-18 14:45:58,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-18 14:45:58,685 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-18 14:45:58,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-18 14:45:58,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-18 14:45:58,685 INFO L87 Difference]: Start difference. First operand 171207 states and 245958 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-18 14:46:07,542 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-18 14:46:07,542 INFO L93 Difference]: Finished difference Result 424537 states and 612815 transitions. [2024-11-18 14:46:07,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-18 14:46:07,543 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 10 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 118 [2024-11-18 14:46:07,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted.