./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f 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_opt-floodmax.4.3.ufo.BOUNDED-8.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 1936862b5856707e80b1aa2b38aa8e033b3615fe51a16f40b8e11843db1147ca --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 23:38:59,501 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 23:38:59,592 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 23:38:59,597 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 23:38:59,597 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 23:38:59,618 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 23:38:59,619 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 23:38:59,619 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 23:38:59,620 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 23:38:59,620 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 23:38:59,621 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 23:38:59,621 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 23:38:59,622 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 23:38:59,622 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 23:38:59,622 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 23:38:59,623 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 23:38:59,623 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 23:38:59,624 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 23:38:59,624 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 23:38:59,624 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 23:38:59,626 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 23:38:59,628 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 23:38:59,629 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 23:38:59,629 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 23:38:59,629 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 23:38:59,629 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 23:38:59,630 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 23:38:59,630 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 23:38:59,630 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 23:38:59,631 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 23:38:59,631 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 23:38:59,632 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 23:38:59,633 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:38:59,633 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 23:38:59,633 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 23:38:59,634 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 23:38:59,634 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 23:38:59,634 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 23:38:59,634 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 23:38:59,635 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 23:38:59,635 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 23:38:59,636 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 23:38:59,636 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1936862b5856707e80b1aa2b38aa8e033b3615fe51a16f40b8e11843db1147ca [2024-11-09 23:38:59,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 23:38:59,976 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 23:38:59,982 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 23:38:59,983 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 23:38:59,984 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 23:38:59,985 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c [2024-11-09 23:39:01,419 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 23:39:01,687 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 23:39:01,689 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/seq-mthreaded/pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c [2024-11-09 23:39:01,712 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b29d6c0c/2551ef9b93be4fcb86c054c77c10ae27/FLAGf52220b5c [2024-11-09 23:39:01,731 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7b29d6c0c/2551ef9b93be4fcb86c054c77c10ae27 [2024-11-09 23:39:01,735 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 23:39:01,737 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 23:39:01,739 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 23:39:01,739 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 23:39:01,744 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 23:39:01,747 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:39:01" (1/1) ... [2024-11-09 23:39:01,748 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e4d1359 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:01, skipping insertion in model container [2024-11-09 23:39:01,748 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 11:39:01" (1/1) ... [2024-11-09 23:39:01,800 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 23:39:02,185 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_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c[30998,31011] [2024-11-09 23:39:02,189 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:39:02,203 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 23:39:02,281 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_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c[30998,31011] [2024-11-09 23:39:02,282 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 23:39:02,309 INFO L204 MainTranslator]: Completed translation [2024-11-09 23:39:02,310 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02 WrapperNode [2024-11-09 23:39:02,310 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 23:39:02,311 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 23:39:02,311 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 23:39:02,311 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 23:39:02,320 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,336 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,402 INFO L138 Inliner]: procedures = 23, calls = 15, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 1021 [2024-11-09 23:39:02,403 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 23:39:02,404 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 23:39:02,404 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 23:39:02,404 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 23:39:02,414 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,415 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,431 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,453 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]. [2024-11-09 23:39:02,453 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,458 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,485 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,491 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,494 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,504 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,511 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 23:39:02,512 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 23:39:02,512 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 23:39:02,513 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 23:39:02,514 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (1/1) ... [2024-11-09 23:39:02,520 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 23:39:02,531 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 23:39:02,551 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) [2024-11-09 23:39:02,558 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 [2024-11-09 23:39:02,631 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 23:39:02,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 23:39:02,631 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 23:39:02,631 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 23:39:02,823 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 23:39:02,825 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 23:39:03,855 INFO L? ?]: Removed 115 outVars from TransFormulas that were not future-live. [2024-11-09 23:39:03,855 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 23:39:03,900 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 23:39:03,901 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 23:39:03,901 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:39:03 BoogieIcfgContainer [2024-11-09 23:39:03,901 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 23:39:03,905 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 23:39:03,905 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 23:39:03,908 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 23:39:03,909 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 11:39:01" (1/3) ... [2024-11-09 23:39:03,910 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a371af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:39:03, skipping insertion in model container [2024-11-09 23:39:03,910 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 11:39:02" (2/3) ... [2024-11-09 23:39:03,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a371af8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 11:39:03, skipping insertion in model container [2024-11-09 23:39:03,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 11:39:03" (3/3) ... [2024-11-09 23:39:03,914 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_opt-floodmax.4.3.ufo.BOUNDED-8.pals.c [2024-11-09 23:39:03,934 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 23:39:03,935 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 23:39:04,025 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 23:39:04,035 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;@3ce3bf0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 23:39:04,036 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 23:39:04,043 INFO L276 IsEmpty]: Start isEmpty. Operand has 330 states, 328 states have (on average 1.7560975609756098) internal successors, (576), 329 states have internal predecessors, (576), 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) [2024-11-09 23:39:04,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 23:39:04,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:04,063 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] [2024-11-09 23:39:04,064 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:04,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:04,070 INFO L85 PathProgramCache]: Analyzing trace with hash -326148447, now seen corresponding path program 1 times [2024-11-09 23:39:04,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:04,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429487376] [2024-11-09 23:39:04,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:04,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:04,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:04,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:04,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:04,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429487376] [2024-11-09 23:39:04,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429487376] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:04,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:04,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 23:39:04,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [158912118] [2024-11-09 23:39:04,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:04,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 23:39:04,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:04,680 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 23:39:04,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 23:39:04,686 INFO L87 Difference]: Start difference. First operand has 330 states, 328 states have (on average 1.7560975609756098) internal successors, (576), 329 states have internal predecessors, (576), 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 39.5) internal successors, (79), 2 states have internal predecessors, (79), 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) [2024-11-09 23:39:04,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:04,738 INFO L93 Difference]: Finished difference Result 440 states and 765 transitions. [2024-11-09 23:39:04,739 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 23:39:04,740 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 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 79 [2024-11-09 23:39:04,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:04,759 INFO L225 Difference]: With dead ends: 440 [2024-11-09 23:39:04,759 INFO L226 Difference]: Without dead ends: 325 [2024-11-09 23:39:04,762 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 [2024-11-09 23:39:04,764 INFO L432 NwaCegarLoop]: 572 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, 572 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 [2024-11-09 23:39:04,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:39:04,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-09 23:39:04,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2024-11-09 23:39:04,837 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.7530864197530864) internal successors, (568), 324 states have internal predecessors, (568), 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) [2024-11-09 23:39:04,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 568 transitions. [2024-11-09 23:39:04,845 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 568 transitions. Word has length 79 [2024-11-09 23:39:04,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:04,845 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 568 transitions. [2024-11-09 23:39:04,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 39.5) internal successors, (79), 2 states have internal predecessors, (79), 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) [2024-11-09 23:39:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 568 transitions. [2024-11-09 23:39:04,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-09 23:39:04,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:04,853 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] [2024-11-09 23:39:04,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 23:39:04,855 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:04,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:04,856 INFO L85 PathProgramCache]: Analyzing trace with hash -295128640, now seen corresponding path program 1 times [2024-11-09 23:39:04,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:04,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040384041] [2024-11-09 23:39:04,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:04,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:04,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:05,328 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:05,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:05,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040384041] [2024-11-09 23:39:05,330 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1040384041] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:05,330 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:05,330 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:39:05,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968258120] [2024-11-09 23:39:05,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:05,333 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:39:05,333 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:05,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:39:05,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:39:05,335 INFO L87 Difference]: Start difference. First operand 325 states and 568 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-11-09 23:39:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:05,472 INFO L93 Difference]: Finished difference Result 434 states and 754 transitions. [2024-11-09 23:39:05,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:39:05,472 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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 79 [2024-11-09 23:39:05,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:05,475 INFO L225 Difference]: With dead ends: 434 [2024-11-09 23:39:05,477 INFO L226 Difference]: Without dead ends: 325 [2024-11-09 23:39:05,479 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 [2024-11-09 23:39:05,480 INFO L432 NwaCegarLoop]: 566 mSDtfsCounter, 0 mSDsluCounter, 1647 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2213 SdHoareTripleChecker+Invalid, 58 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:05,481 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2213 Invalid, 58 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:39:05,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 325 states. [2024-11-09 23:39:05,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 325 to 325. [2024-11-09 23:39:05,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 325 states, 324 states have (on average 1.6111111111111112) internal successors, (522), 324 states have internal predecessors, (522), 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) [2024-11-09 23:39:05,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 522 transitions. [2024-11-09 23:39:05,495 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 522 transitions. Word has length 79 [2024-11-09 23:39:05,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:05,495 INFO L471 AbstractCegarLoop]: Abstraction has 325 states and 522 transitions. [2024-11-09 23:39:05,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 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) [2024-11-09 23:39:05,496 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 522 transitions. [2024-11-09 23:39:05,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-09 23:39:05,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:05,498 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:05,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-09 23:39:05,499 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:05,499 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:05,499 INFO L85 PathProgramCache]: Analyzing trace with hash 1921606714, now seen corresponding path program 1 times [2024-11-09 23:39:05,500 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:05,500 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180204803] [2024-11-09 23:39:05,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:05,500 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:05,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:05,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:05,715 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:05,715 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180204803] [2024-11-09 23:39:05,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180204803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:05,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:05,716 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:39:05,716 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041199639] [2024-11-09 23:39:05,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:05,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:39:05,717 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:05,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:39:05,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:39:05,718 INFO L87 Difference]: Start difference. First operand 325 states and 522 transitions. Second operand has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2024-11-09 23:39:05,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:05,774 INFO L93 Difference]: Finished difference Result 523 states and 864 transitions. [2024-11-09 23:39:05,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:39:05,775 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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 124 [2024-11-09 23:39:05,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:05,777 INFO L225 Difference]: With dead ends: 523 [2024-11-09 23:39:05,778 INFO L226 Difference]: Without dead ends: 418 [2024-11-09 23:39:05,780 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 [2024-11-09 23:39:05,783 INFO L432 NwaCegarLoop]: 524 mSDtfsCounter, 151 mSDsluCounter, 467 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 151 SdHoareTripleChecker+Valid, 991 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:05,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [151 Valid, 991 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:39:05,788 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 418 states. [2024-11-09 23:39:05,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 418 to 415. [2024-11-09 23:39:05,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 414 states have (on average 1.6304347826086956) internal successors, (675), 414 states have internal predecessors, (675), 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) [2024-11-09 23:39:05,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 675 transitions. [2024-11-09 23:39:05,840 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 675 transitions. Word has length 124 [2024-11-09 23:39:05,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:05,841 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 675 transitions. [2024-11-09 23:39:05,841 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.333333333333336) internal successors, (124), 3 states have internal predecessors, (124), 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) [2024-11-09 23:39:05,841 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 675 transitions. [2024-11-09 23:39:05,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-09 23:39:05,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:05,844 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:05,844 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-09 23:39:05,845 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:05,845 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:05,846 INFO L85 PathProgramCache]: Analyzing trace with hash -1008601298, now seen corresponding path program 1 times [2024-11-09 23:39:05,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:05,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337594000] [2024-11-09 23:39:05,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:05,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:05,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:06,050 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:06,052 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:06,053 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337594000] [2024-11-09 23:39:06,053 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337594000] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:06,053 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:06,053 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:39:06,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694244579] [2024-11-09 23:39:06,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:06,054 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:39:06,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:06,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:39:06,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:39:06,057 INFO L87 Difference]: Start difference. First operand 415 states and 675 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2024-11-09 23:39:06,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:06,100 INFO L93 Difference]: Finished difference Result 785 states and 1309 transitions. [2024-11-09 23:39:06,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:39:06,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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 127 [2024-11-09 23:39:06,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:06,106 INFO L225 Difference]: With dead ends: 785 [2024-11-09 23:39:06,106 INFO L226 Difference]: Without dead ends: 590 [2024-11-09 23:39:06,109 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 [2024-11-09 23:39:06,113 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 152 mSDsluCounter, 476 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 996 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:06,113 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 996 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:39:06,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 590 states. [2024-11-09 23:39:06,136 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 590 to 587. [2024-11-09 23:39:06,137 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 587 states, 586 states have (on average 1.6552901023890785) internal successors, (970), 586 states have internal predecessors, (970), 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) [2024-11-09 23:39:06,139 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 587 states to 587 states and 970 transitions. [2024-11-09 23:39:06,139 INFO L78 Accepts]: Start accepts. Automaton has 587 states and 970 transitions. Word has length 127 [2024-11-09 23:39:06,140 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:06,141 INFO L471 AbstractCegarLoop]: Abstraction has 587 states and 970 transitions. [2024-11-09 23:39:06,141 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 3 states have internal predecessors, (127), 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) [2024-11-09 23:39:06,141 INFO L276 IsEmpty]: Start isEmpty. Operand 587 states and 970 transitions. [2024-11-09 23:39:06,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-09 23:39:06,144 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:06,145 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:06,145 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-09 23:39:06,145 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:06,146 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:06,146 INFO L85 PathProgramCache]: Analyzing trace with hash -1629429343, now seen corresponding path program 1 times [2024-11-09 23:39:06,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:06,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469683968] [2024-11-09 23:39:06,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:06,147 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:06,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:06,340 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:06,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:06,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469683968] [2024-11-09 23:39:06,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469683968] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:06,341 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:06,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:39:06,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030614599] [2024-11-09 23:39:06,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:06,342 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:39:06,342 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:06,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:39:06,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:39:06,343 INFO L87 Difference]: Start difference. First operand 587 states and 970 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2024-11-09 23:39:06,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:06,405 INFO L93 Difference]: Finished difference Result 1281 states and 2158 transitions. [2024-11-09 23:39:06,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:39:06,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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 130 [2024-11-09 23:39:06,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:06,410 INFO L225 Difference]: With dead ends: 1281 [2024-11-09 23:39:06,410 INFO L226 Difference]: Without dead ends: 914 [2024-11-09 23:39:06,411 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 [2024-11-09 23:39:06,412 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 145 mSDsluCounter, 477 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 997 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:06,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 997 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:39:06,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 914 states. [2024-11-09 23:39:06,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 914 to 911. [2024-11-09 23:39:06,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 911 states, 910 states have (on average 1.6725274725274726) internal successors, (1522), 910 states have internal predecessors, (1522), 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) [2024-11-09 23:39:06,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 911 states to 911 states and 1522 transitions. [2024-11-09 23:39:06,437 INFO L78 Accepts]: Start accepts. Automaton has 911 states and 1522 transitions. Word has length 130 [2024-11-09 23:39:06,437 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:06,437 INFO L471 AbstractCegarLoop]: Abstraction has 911 states and 1522 transitions. [2024-11-09 23:39:06,438 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 3 states have internal predecessors, (130), 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) [2024-11-09 23:39:06,438 INFO L276 IsEmpty]: Start isEmpty. Operand 911 states and 1522 transitions. [2024-11-09 23:39:06,440 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-09 23:39:06,440 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:06,440 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:06,441 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-09 23:39:06,441 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:06,441 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:06,441 INFO L85 PathProgramCache]: Analyzing trace with hash 675994549, now seen corresponding path program 1 times [2024-11-09 23:39:06,442 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:06,442 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006894095] [2024-11-09 23:39:06,442 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:06,442 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:06,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:06,593 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:06,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:06,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006894095] [2024-11-09 23:39:06,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006894095] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:06,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:06,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:39:06,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1935407341] [2024-11-09 23:39:06,595 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:06,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:39:06,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:06,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:39:06,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:39:06,596 INFO L87 Difference]: Start difference. First operand 911 states and 1522 transitions. Second operand has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2024-11-09 23:39:06,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:06,648 INFO L93 Difference]: Finished difference Result 2213 states and 3742 transitions. [2024-11-09 23:39:06,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:39:06,648 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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 133 [2024-11-09 23:39:06,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:06,656 INFO L225 Difference]: With dead ends: 2213 [2024-11-09 23:39:06,657 INFO L226 Difference]: Without dead ends: 1522 [2024-11-09 23:39:06,659 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 [2024-11-09 23:39:06,662 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 138 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 998 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:06,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 998 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:39:06,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1522 states. [2024-11-09 23:39:06,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1522 to 1519. [2024-11-09 23:39:06,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1519 states, 1518 states have (on average 1.6798418972332017) internal successors, (2550), 1518 states have internal predecessors, (2550), 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) [2024-11-09 23:39:06,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1519 states to 1519 states and 2550 transitions. [2024-11-09 23:39:06,721 INFO L78 Accepts]: Start accepts. Automaton has 1519 states and 2550 transitions. Word has length 133 [2024-11-09 23:39:06,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:06,721 INFO L471 AbstractCegarLoop]: Abstraction has 1519 states and 2550 transitions. [2024-11-09 23:39:06,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.333333333333336) internal successors, (133), 3 states have internal predecessors, (133), 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) [2024-11-09 23:39:06,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1519 states and 2550 transitions. [2024-11-09 23:39:06,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2024-11-09 23:39:06,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:06,725 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:06,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-09 23:39:06,725 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:06,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:06,726 INFO L85 PathProgramCache]: Analyzing trace with hash -2099158520, now seen corresponding path program 1 times [2024-11-09 23:39:06,727 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:06,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673925386] [2024-11-09 23:39:06,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:06,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:06,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:06,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:06,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:06,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673925386] [2024-11-09 23:39:06,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673925386] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:06,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:06,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:39:06,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1931248236] [2024-11-09 23:39:06,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:06,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:39:06,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:06,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:39:06,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:39:06,979 INFO L87 Difference]: Start difference. First operand 1519 states and 2550 transitions. Second operand has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-11-09 23:39:07,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:07,372 INFO L93 Difference]: Finished difference Result 7587 states and 13002 transitions. [2024-11-09 23:39:07,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-09 23:39:07,373 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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 136 [2024-11-09 23:39:07,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:07,400 INFO L225 Difference]: With dead ends: 7587 [2024-11-09 23:39:07,400 INFO L226 Difference]: Without dead ends: 6288 [2024-11-09 23:39:07,427 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-09 23:39:07,428 INFO L432 NwaCegarLoop]: 520 mSDtfsCounter, 1416 mSDsluCounter, 3926 mSDsCounter, 0 mSdLazyCounter, 226 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1416 SdHoareTripleChecker+Valid, 4446 SdHoareTripleChecker+Invalid, 233 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 226 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:07,428 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1416 Valid, 4446 Invalid, 233 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 226 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-09 23:39:07,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6288 states. [2024-11-09 23:39:07,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6288 to 2706. [2024-11-09 23:39:07,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2706 states, 2705 states have (on average 1.6939001848428836) internal successors, (4582), 2705 states have internal predecessors, (4582), 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) [2024-11-09 23:39:07,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2706 states to 2706 states and 4582 transitions. [2024-11-09 23:39:07,529 INFO L78 Accepts]: Start accepts. Automaton has 2706 states and 4582 transitions. Word has length 136 [2024-11-09 23:39:07,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:07,529 INFO L471 AbstractCegarLoop]: Abstraction has 2706 states and 4582 transitions. [2024-11-09 23:39:07,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 22.666666666666668) internal successors, (136), 6 states have internal predecessors, (136), 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) [2024-11-09 23:39:07,530 INFO L276 IsEmpty]: Start isEmpty. Operand 2706 states and 4582 transitions. [2024-11-09 23:39:07,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-09 23:39:07,532 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:07,533 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:07,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-09 23:39:07,533 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:07,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:07,533 INFO L85 PathProgramCache]: Analyzing trace with hash 1070252002, now seen corresponding path program 1 times [2024-11-09 23:39:07,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:07,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107352694] [2024-11-09 23:39:07,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:07,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:07,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:07,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:07,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107352694] [2024-11-09 23:39:07,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107352694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:07,724 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:07,724 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:39:07,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [95742629] [2024-11-09 23:39:07,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:07,725 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:39:07,725 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:07,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:39:07,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:39:07,726 INFO L87 Difference]: Start difference. First operand 2706 states and 4582 transitions. Second operand has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2024-11-09 23:39:07,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:07,858 INFO L93 Difference]: Finished difference Result 7838 states and 13398 transitions. [2024-11-09 23:39:07,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:39:07,859 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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 137 [2024-11-09 23:39:07,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:07,879 INFO L225 Difference]: With dead ends: 7838 [2024-11-09 23:39:07,879 INFO L226 Difference]: Without dead ends: 5352 [2024-11-09 23:39:07,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:39:07,888 INFO L432 NwaCegarLoop]: 525 mSDtfsCounter, 524 mSDsluCounter, 1148 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 1673 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:07,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 1673 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:39:07,896 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5352 states. [2024-11-09 23:39:08,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5352 to 4011. [2024-11-09 23:39:08,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4011 states, 4010 states have (on average 1.697506234413965) internal successors, (6807), 4010 states have internal predecessors, (6807), 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) [2024-11-09 23:39:08,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4011 states to 4011 states and 6807 transitions. [2024-11-09 23:39:08,035 INFO L78 Accepts]: Start accepts. Automaton has 4011 states and 6807 transitions. Word has length 137 [2024-11-09 23:39:08,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:08,036 INFO L471 AbstractCegarLoop]: Abstraction has 4011 states and 6807 transitions. [2024-11-09 23:39:08,036 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.25) internal successors, (137), 4 states have internal predecessors, (137), 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) [2024-11-09 23:39:08,036 INFO L276 IsEmpty]: Start isEmpty. Operand 4011 states and 6807 transitions. [2024-11-09 23:39:08,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 23:39:08,040 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:08,040 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:08,040 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-09 23:39:08,040 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:08,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:08,041 INFO L85 PathProgramCache]: Analyzing trace with hash -630754231, now seen corresponding path program 1 times [2024-11-09 23:39:08,041 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:08,041 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611502154] [2024-11-09 23:39:08,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:08,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:08,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:08,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:08,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611502154] [2024-11-09 23:39:08,214 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611502154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:08,214 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:08,214 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:39:08,214 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909103677] [2024-11-09 23:39:08,214 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:08,215 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:39:08,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:08,216 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:39:08,216 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:39:08,217 INFO L87 Difference]: Start difference. First operand 4011 states and 6807 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-11-09 23:39:08,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:08,303 INFO L93 Difference]: Finished difference Result 8871 states and 15118 transitions. [2024-11-09 23:39:08,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:39:08,304 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 138 [2024-11-09 23:39:08,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:08,328 INFO L225 Difference]: With dead ends: 8871 [2024-11-09 23:39:08,329 INFO L226 Difference]: Without dead ends: 6171 [2024-11-09 23:39:08,335 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 [2024-11-09 23:39:08,337 INFO L432 NwaCegarLoop]: 657 mSDtfsCounter, 160 mSDsluCounter, 490 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 160 SdHoareTripleChecker+Valid, 1147 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:08,338 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [160 Valid, 1147 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:39:08,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6171 states. [2024-11-09 23:39:08,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6171 to 6168. [2024-11-09 23:39:08,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6168 states, 6167 states have (on average 1.691908545484028) internal successors, (10434), 6167 states have internal predecessors, (10434), 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) [2024-11-09 23:39:08,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6168 states to 6168 states and 10434 transitions. [2024-11-09 23:39:08,510 INFO L78 Accepts]: Start accepts. Automaton has 6168 states and 10434 transitions. Word has length 138 [2024-11-09 23:39:08,510 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:08,510 INFO L471 AbstractCegarLoop]: Abstraction has 6168 states and 10434 transitions. [2024-11-09 23:39:08,511 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-11-09 23:39:08,511 INFO L276 IsEmpty]: Start isEmpty. Operand 6168 states and 10434 transitions. [2024-11-09 23:39:08,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 23:39:08,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:08,513 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:08,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-09 23:39:08,513 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:08,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:08,514 INFO L85 PathProgramCache]: Analyzing trace with hash -492241466, now seen corresponding path program 1 times [2024-11-09 23:39:08,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:08,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529061094] [2024-11-09 23:39:08,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:08,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:08,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:08,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:08,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:08,650 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529061094] [2024-11-09 23:39:08,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529061094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:08,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:08,651 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:39:08,651 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107520871] [2024-11-09 23:39:08,651 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:08,652 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:39:08,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:08,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:39:08,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:39:08,654 INFO L87 Difference]: Start difference. First operand 6168 states and 10434 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-11-09 23:39:08,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:08,753 INFO L93 Difference]: Finished difference Result 11984 states and 20279 transitions. [2024-11-09 23:39:08,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:39:08,754 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 138 [2024-11-09 23:39:08,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:08,796 INFO L225 Difference]: With dead ends: 11984 [2024-11-09 23:39:08,796 INFO L226 Difference]: Without dead ends: 8721 [2024-11-09 23:39:08,804 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 [2024-11-09 23:39:08,805 INFO L432 NwaCegarLoop]: 650 mSDtfsCounter, 153 mSDsluCounter, 491 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 153 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:08,806 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [153 Valid, 1141 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:39:08,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8721 states. [2024-11-09 23:39:09,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8721 to 8718. [2024-11-09 23:39:09,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8718 states, 8717 states have (on average 1.6820006883101986) internal successors, (14662), 8717 states have internal predecessors, (14662), 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) [2024-11-09 23:39:09,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8718 states to 8718 states and 14662 transitions. [2024-11-09 23:39:09,115 INFO L78 Accepts]: Start accepts. Automaton has 8718 states and 14662 transitions. Word has length 138 [2024-11-09 23:39:09,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:09,115 INFO L471 AbstractCegarLoop]: Abstraction has 8718 states and 14662 transitions. [2024-11-09 23:39:09,116 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-11-09 23:39:09,116 INFO L276 IsEmpty]: Start isEmpty. Operand 8718 states and 14662 transitions. [2024-11-09 23:39:09,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 23:39:09,118 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:09,118 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:09,118 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-09 23:39:09,118 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:09,119 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:09,119 INFO L85 PathProgramCache]: Analyzing trace with hash -67629014, now seen corresponding path program 1 times [2024-11-09 23:39:09,119 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:09,120 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420311163] [2024-11-09 23:39:09,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:09,122 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:09,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:09,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:09,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:09,262 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420311163] [2024-11-09 23:39:09,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420311163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:09,263 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:09,263 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:39:09,263 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149977595] [2024-11-09 23:39:09,263 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:09,264 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:39:09,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:09,264 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:39:09,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:39:09,265 INFO L87 Difference]: Start difference. First operand 8718 states and 14662 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-11-09 23:39:09,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:09,442 INFO L93 Difference]: Finished difference Result 16914 states and 28439 transitions. [2024-11-09 23:39:09,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:39:09,443 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 138 [2024-11-09 23:39:09,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:09,469 INFO L225 Difference]: With dead ends: 16914 [2024-11-09 23:39:09,470 INFO L226 Difference]: Without dead ends: 12281 [2024-11-09 23:39:09,481 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 [2024-11-09 23:39:09,482 INFO L432 NwaCegarLoop]: 634 mSDtfsCounter, 146 mSDsluCounter, 492 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:09,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 1126 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:39:09,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12281 states. [2024-11-09 23:39:09,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12281 to 12278. [2024-11-09 23:39:09,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12278 states, 12277 states have (on average 1.6702777551519101) internal successors, (20506), 12277 states have internal predecessors, (20506), 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) [2024-11-09 23:39:09,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12278 states to 12278 states and 20506 transitions. [2024-11-09 23:39:09,796 INFO L78 Accepts]: Start accepts. Automaton has 12278 states and 20506 transitions. Word has length 138 [2024-11-09 23:39:09,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:09,796 INFO L471 AbstractCegarLoop]: Abstraction has 12278 states and 20506 transitions. [2024-11-09 23:39:09,797 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-11-09 23:39:09,797 INFO L276 IsEmpty]: Start isEmpty. Operand 12278 states and 20506 transitions. [2024-11-09 23:39:09,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 23:39:09,798 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:09,799 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:09,799 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-09 23:39:09,799 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:09,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:09,800 INFO L85 PathProgramCache]: Analyzing trace with hash -796580282, now seen corresponding path program 1 times [2024-11-09 23:39:09,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:09,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [876457784] [2024-11-09 23:39:09,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:09,800 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:09,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:09,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:09,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [876457784] [2024-11-09 23:39:09,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [876457784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:09,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:09,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:39:09,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49089185] [2024-11-09 23:39:09,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:09,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:39:09,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:09,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:39:09,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:39:09,923 INFO L87 Difference]: Start difference. First operand 12278 states and 20506 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-11-09 23:39:10,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:10,166 INFO L93 Difference]: Finished difference Result 23784 states and 39691 transitions. [2024-11-09 23:39:10,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:39:10,167 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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 138 [2024-11-09 23:39:10,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:10,207 INFO L225 Difference]: With dead ends: 23784 [2024-11-09 23:39:10,208 INFO L226 Difference]: Without dead ends: 17226 [2024-11-09 23:39:10,223 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 [2024-11-09 23:39:10,224 INFO L432 NwaCegarLoop]: 618 mSDtfsCounter, 139 mSDsluCounter, 493 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 1111 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:10,225 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 1111 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:39:10,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17226 states. [2024-11-09 23:39:10,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17226 to 17223. [2024-11-09 23:39:10,635 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17223 states, 17222 states have (on average 1.6565439554058763) internal successors, (28529), 17222 states have internal predecessors, (28529), 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) [2024-11-09 23:39:10,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17223 states to 17223 states and 28529 transitions. [2024-11-09 23:39:10,692 INFO L78 Accepts]: Start accepts. Automaton has 17223 states and 28529 transitions. Word has length 138 [2024-11-09 23:39:10,692 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:10,693 INFO L471 AbstractCegarLoop]: Abstraction has 17223 states and 28529 transitions. [2024-11-09 23:39:10,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 states have internal predecessors, (138), 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) [2024-11-09 23:39:10,693 INFO L276 IsEmpty]: Start isEmpty. Operand 17223 states and 28529 transitions. [2024-11-09 23:39:10,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-09 23:39:10,694 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:10,695 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:10,695 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-09 23:39:10,695 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:10,695 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:10,696 INFO L85 PathProgramCache]: Analyzing trace with hash 480472074, now seen corresponding path program 1 times [2024-11-09 23:39:10,696 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:10,696 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911197648] [2024-11-09 23:39:10,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:10,696 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:10,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:10,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:10,974 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:10,975 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911197648] [2024-11-09 23:39:10,975 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911197648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:10,975 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:10,975 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:39:10,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409220595] [2024-11-09 23:39:10,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:10,976 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:39:10,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:10,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:39:10,977 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:39:10,977 INFO L87 Difference]: Start difference. First operand 17223 states and 28529 transitions. Second operand has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-09 23:39:11,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:11,593 INFO L93 Difference]: Finished difference Result 56455 states and 93615 transitions. [2024-11-09 23:39:11,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:39:11,595 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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 138 [2024-11-09 23:39:11,595 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:11,689 INFO L225 Difference]: With dead ends: 56455 [2024-11-09 23:39:11,689 INFO L226 Difference]: Without dead ends: 39485 [2024-11-09 23:39:11,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:39:11,724 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 523 mSDsluCounter, 1150 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 1661 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:11,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 1661 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:39:11,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39485 states. [2024-11-09 23:39:12,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39485 to 28264. [2024-11-09 23:39:12,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28264 states, 28263 states have (on average 1.6475957966245622) internal successors, (46566), 28263 states have internal predecessors, (46566), 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) [2024-11-09 23:39:12,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28264 states to 28264 states and 46566 transitions. [2024-11-09 23:39:12,593 INFO L78 Accepts]: Start accepts. Automaton has 28264 states and 46566 transitions. Word has length 138 [2024-11-09 23:39:12,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:12,594 INFO L471 AbstractCegarLoop]: Abstraction has 28264 states and 46566 transitions. [2024-11-09 23:39:12,594 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.5) internal successors, (138), 4 states have internal predecessors, (138), 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) [2024-11-09 23:39:12,594 INFO L276 IsEmpty]: Start isEmpty. Operand 28264 states and 46566 transitions. [2024-11-09 23:39:12,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-09 23:39:12,595 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:12,596 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:12,596 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-09 23:39:12,596 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:12,596 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:12,596 INFO L85 PathProgramCache]: Analyzing trace with hash -680094812, now seen corresponding path program 1 times [2024-11-09 23:39:12,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:12,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [37192500] [2024-11-09 23:39:12,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:12,597 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:12,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:12,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:12,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:12,859 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [37192500] [2024-11-09 23:39:12,859 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [37192500] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:12,859 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:12,859 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:39:12,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860717574] [2024-11-09 23:39:12,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:12,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:39:12,860 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:12,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:39:12,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:39:12,861 INFO L87 Difference]: Start difference. First operand 28264 states and 46566 transitions. Second operand has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-09 23:39:13,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:13,650 INFO L93 Difference]: Finished difference Result 92357 states and 152285 transitions. [2024-11-09 23:39:13,651 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:39:13,651 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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 139 [2024-11-09 23:39:13,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:13,822 INFO L225 Difference]: With dead ends: 92357 [2024-11-09 23:39:13,904 INFO L226 Difference]: Without dead ends: 64346 [2024-11-09 23:39:13,960 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:39:13,960 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 521 mSDsluCounter, 1152 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 1663 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:13,961 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 1663 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:39:14,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64346 states. [2024-11-09 23:39:15,048 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64346 to 46161. [2024-11-09 23:39:15,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46161 states, 46160 states have (on average 1.6384532062391681) internal successors, (75631), 46160 states have internal predecessors, (75631), 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) [2024-11-09 23:39:15,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46161 states to 46161 states and 75631 transitions. [2024-11-09 23:39:15,245 INFO L78 Accepts]: Start accepts. Automaton has 46161 states and 75631 transitions. Word has length 139 [2024-11-09 23:39:15,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:15,246 INFO L471 AbstractCegarLoop]: Abstraction has 46161 states and 75631 transitions. [2024-11-09 23:39:15,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 34.75) internal successors, (139), 4 states have internal predecessors, (139), 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) [2024-11-09 23:39:15,247 INFO L276 IsEmpty]: Start isEmpty. Operand 46161 states and 75631 transitions. [2024-11-09 23:39:15,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-09 23:39:15,248 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:15,248 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:15,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-09 23:39:15,249 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:15,249 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:15,249 INFO L85 PathProgramCache]: Analyzing trace with hash 1939779084, now seen corresponding path program 1 times [2024-11-09 23:39:15,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:15,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773100004] [2024-11-09 23:39:15,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:15,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:15,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:15,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:15,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:15,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773100004] [2024-11-09 23:39:15,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773100004] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:15,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:15,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-09 23:39:15,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543643821] [2024-11-09 23:39:15,645 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:15,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-09 23:39:15,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:15,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-09 23:39:15,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-09 23:39:15,647 INFO L87 Difference]: Start difference. First operand 46161 states and 75631 transitions. Second operand has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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) [2024-11-09 23:39:16,888 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:16,889 INFO L93 Difference]: Finished difference Result 149187 states and 244611 transitions. [2024-11-09 23:39:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-09 23:39:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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 140 [2024-11-09 23:39:16,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:17,360 INFO L225 Difference]: With dead ends: 149187 [2024-11-09 23:39:17,360 INFO L226 Difference]: Without dead ends: 103279 [2024-11-09 23:39:17,419 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:39:17,420 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 519 mSDsluCounter, 1154 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 519 SdHoareTripleChecker+Valid, 1665 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:17,420 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [519 Valid, 1665 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:39:17,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 103279 states. [2024-11-09 23:39:19,080 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 103279 to 74494. [2024-11-09 23:39:19,161 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74494 states, 74493 states have (on average 1.6294685406682508) internal successors, (121384), 74493 states have internal predecessors, (121384), 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) [2024-11-09 23:39:19,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74494 states to 74494 states and 121384 transitions. [2024-11-09 23:39:19,314 INFO L78 Accepts]: Start accepts. Automaton has 74494 states and 121384 transitions. Word has length 140 [2024-11-09 23:39:19,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:19,314 INFO L471 AbstractCegarLoop]: Abstraction has 74494 states and 121384 transitions. [2024-11-09 23:39:19,314 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.0) internal successors, (140), 4 states have internal predecessors, (140), 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) [2024-11-09 23:39:19,315 INFO L276 IsEmpty]: Start isEmpty. Operand 74494 states and 121384 transitions. [2024-11-09 23:39:19,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-09 23:39:19,316 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:19,316 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:19,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-09 23:39:19,316 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:19,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:19,317 INFO L85 PathProgramCache]: Analyzing trace with hash 509945870, now seen corresponding path program 1 times [2024-11-09 23:39:19,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:19,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [631450805] [2024-11-09 23:39:19,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:19,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:19,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:19,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:19,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [631450805] [2024-11-09 23:39:19,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [631450805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:19,914 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:19,914 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:39:19,914 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409934823] [2024-11-09 23:39:19,914 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:19,915 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:39:19,915 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:19,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:39:19,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:39:19,916 INFO L87 Difference]: Start difference. First operand 74494 states and 121384 transitions. Second operand has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 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) [2024-11-09 23:39:21,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:21,186 INFO L93 Difference]: Finished difference Result 148738 states and 242379 transitions. [2024-11-09 23:39:21,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:39:21,187 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 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 142 [2024-11-09 23:39:21,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:21,388 INFO L225 Difference]: With dead ends: 148738 [2024-11-09 23:39:21,388 INFO L226 Difference]: Without dead ends: 74497 [2024-11-09 23:39:21,470 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:39:21,471 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 281 mSDsluCounter, 1446 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 281 SdHoareTripleChecker+Valid, 1962 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:21,471 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [281 Valid, 1962 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:39:21,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74497 states. [2024-11-09 23:39:23,015 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74497 to 74494. [2024-11-09 23:39:23,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74494 states, 74493 states have (on average 1.621078490596432) internal successors, (120759), 74493 states have internal predecessors, (120759), 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) [2024-11-09 23:39:23,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74494 states to 74494 states and 120759 transitions. [2024-11-09 23:39:23,278 INFO L78 Accepts]: Start accepts. Automaton has 74494 states and 120759 transitions. Word has length 142 [2024-11-09 23:39:23,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:23,278 INFO L471 AbstractCegarLoop]: Abstraction has 74494 states and 120759 transitions. [2024-11-09 23:39:23,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 23.666666666666668) internal successors, (142), 6 states have internal predecessors, (142), 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) [2024-11-09 23:39:23,279 INFO L276 IsEmpty]: Start isEmpty. Operand 74494 states and 120759 transitions. [2024-11-09 23:39:23,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-11-09 23:39:23,280 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:23,280 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:23,281 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-09 23:39:23,281 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:23,281 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:23,281 INFO L85 PathProgramCache]: Analyzing trace with hash 618300877, now seen corresponding path program 1 times [2024-11-09 23:39:23,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:23,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647273775] [2024-11-09 23:39:23,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:23,282 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:23,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:23,629 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:23,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647273775] [2024-11-09 23:39:23,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647273775] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:23,629 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:23,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:39:23,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2083727138] [2024-11-09 23:39:23,629 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:23,630 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:39:23,630 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:23,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:39:23,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:39:23,630 INFO L87 Difference]: Start difference. First operand 74494 states and 120759 transitions. Second operand has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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) [2024-11-09 23:39:25,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:25,358 INFO L93 Difference]: Finished difference Result 217704 states and 353415 transitions. [2024-11-09 23:39:25,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:39:25,359 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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 147 [2024-11-09 23:39:25,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:25,633 INFO L225 Difference]: With dead ends: 217704 [2024-11-09 23:39:25,633 INFO L226 Difference]: Without dead ends: 143463 [2024-11-09 23:39:25,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-11-09 23:39:25,706 INFO L432 NwaCegarLoop]: 509 mSDtfsCounter, 138 mSDsluCounter, 1952 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 2461 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:25,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 2461 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:39:25,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143463 states. [2024-11-09 23:39:27,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143463 to 143460. [2024-11-09 23:39:28,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143460 states, 143459 states have (on average 1.610411337037063) internal successors, (231028), 143459 states have internal predecessors, (231028), 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) [2024-11-09 23:39:28,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143460 states to 143460 states and 231028 transitions. [2024-11-09 23:39:28,888 INFO L78 Accepts]: Start accepts. Automaton has 143460 states and 231028 transitions. Word has length 147 [2024-11-09 23:39:28,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:28,889 INFO L471 AbstractCegarLoop]: Abstraction has 143460 states and 231028 transitions. [2024-11-09 23:39:28,889 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 24.5) internal successors, (147), 6 states have internal predecessors, (147), 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) [2024-11-09 23:39:28,889 INFO L276 IsEmpty]: Start isEmpty. Operand 143460 states and 231028 transitions. [2024-11-09 23:39:28,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2024-11-09 23:39:28,890 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:28,891 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:28,891 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-09 23:39:28,891 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:28,891 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:28,892 INFO L85 PathProgramCache]: Analyzing trace with hash 1910121648, now seen corresponding path program 1 times [2024-11-09 23:39:28,892 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:28,892 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280584826] [2024-11-09 23:39:28,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:28,892 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:28,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:29,283 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-09 23:39:29,284 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:29,284 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280584826] [2024-11-09 23:39:29,284 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280584826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:29,284 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:29,284 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-09 23:39:29,285 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527338776] [2024-11-09 23:39:29,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:29,285 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-09 23:39:29,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:29,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-09 23:39:29,286 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-09 23:39:29,286 INFO L87 Difference]: Start difference. First operand 143460 states and 231028 transitions. Second operand has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 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) [2024-11-09 23:39:30,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:30,651 INFO L93 Difference]: Finished difference Result 149271 states and 238774 transitions. [2024-11-09 23:39:30,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-09 23:39:30,652 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 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 149 [2024-11-09 23:39:30,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:30,925 INFO L225 Difference]: With dead ends: 149271 [2024-11-09 23:39:30,925 INFO L226 Difference]: Without dead ends: 149268 [2024-11-09 23:39:30,982 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 [2024-11-09 23:39:30,983 INFO L432 NwaCegarLoop]: 519 mSDtfsCounter, 0 mSDsluCounter, 1542 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 2061 SdHoareTripleChecker+Invalid, 26 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:30,984 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 2061 Invalid, 26 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:39:31,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149268 states. [2024-11-09 23:39:33,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149268 to 149268. [2024-11-09 23:39:33,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149268 states, 149267 states have (on average 1.5864792619936088) internal successors, (236809), 149267 states have internal predecessors, (236809), 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) [2024-11-09 23:39:33,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149268 states to 149268 states and 236809 transitions. [2024-11-09 23:39:33,970 INFO L78 Accepts]: Start accepts. Automaton has 149268 states and 236809 transitions. Word has length 149 [2024-11-09 23:39:33,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:33,970 INFO L471 AbstractCegarLoop]: Abstraction has 149268 states and 236809 transitions. [2024-11-09 23:39:33,971 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 29.8) internal successors, (149), 5 states have internal predecessors, (149), 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) [2024-11-09 23:39:33,971 INFO L276 IsEmpty]: Start isEmpty. Operand 149268 states and 236809 transitions. [2024-11-09 23:39:33,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-09 23:39:33,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:33,978 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:33,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-09 23:39:33,979 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:33,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:33,979 INFO L85 PathProgramCache]: Analyzing trace with hash -2077094235, now seen corresponding path program 1 times [2024-11-09 23:39:33,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:33,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211798003] [2024-11-09 23:39:33,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:33,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:34,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:34,099 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-09 23:39:34,099 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:34,099 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211798003] [2024-11-09 23:39:34,100 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211798003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:34,100 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:34,100 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-09 23:39:34,100 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514224628] [2024-11-09 23:39:34,100 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:34,101 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 23:39:34,102 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:34,102 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 23:39:34,102 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-09 23:39:34,102 INFO L87 Difference]: Start difference. First operand 149268 states and 236809 transitions. Second operand has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2024-11-09 23:39:36,960 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:36,960 INFO L93 Difference]: Finished difference Result 341401 states and 542811 transitions. [2024-11-09 23:39:36,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 23:39:36,961 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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 186 [2024-11-09 23:39:36,961 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:37,472 INFO L225 Difference]: With dead ends: 341401 [2024-11-09 23:39:37,473 INFO L226 Difference]: Without dead ends: 273598 [2024-11-09 23:39:37,568 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 [2024-11-09 23:39:37,569 INFO L432 NwaCegarLoop]: 514 mSDtfsCounter, 124 mSDsluCounter, 481 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 995 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:37,569 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 995 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 23:39:37,757 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273598 states. [2024-11-09 23:39:42,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273598 to 273345. [2024-11-09 23:39:42,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 273345 states, 273344 states have (on average 1.5868539276516038) internal successors, (433757), 273344 states have internal predecessors, (433757), 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) [2024-11-09 23:39:43,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273345 states to 273345 states and 433757 transitions. [2024-11-09 23:39:43,742 INFO L78 Accepts]: Start accepts. Automaton has 273345 states and 433757 transitions. Word has length 186 [2024-11-09 23:39:43,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 23:39:43,743 INFO L471 AbstractCegarLoop]: Abstraction has 273345 states and 433757 transitions. [2024-11-09 23:39:43,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 61.333333333333336) internal successors, (184), 3 states have internal predecessors, (184), 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) [2024-11-09 23:39:43,743 INFO L276 IsEmpty]: Start isEmpty. Operand 273345 states and 433757 transitions. [2024-11-09 23:39:43,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-09 23:39:43,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 23:39:43,751 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 23:39:43,751 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-09 23:39:43,751 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 23:39:43,751 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 23:39:43,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1938581470, now seen corresponding path program 1 times [2024-11-09 23:39:43,752 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 23:39:43,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940483833] [2024-11-09 23:39:43,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 23:39:43,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 23:39:43,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 23:39:44,005 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-09 23:39:44,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 23:39:44,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940483833] [2024-11-09 23:39:44,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940483833] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 23:39:44,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 23:39:44,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-09 23:39:44,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251359208] [2024-11-09 23:39:44,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 23:39:44,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-09 23:39:44,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 23:39:44,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-09 23:39:44,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-09 23:39:44,008 INFO L87 Difference]: Start difference. First operand 273345 states and 433757 transitions. Second operand has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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) [2024-11-09 23:39:49,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 23:39:49,865 INFO L93 Difference]: Finished difference Result 758955 states and 1206556 transitions. [2024-11-09 23:39:49,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-09 23:39:49,866 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 29.5) internal successors, (177), 6 states have internal predecessors, (177), 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 186 [2024-11-09 23:39:49,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 23:39:51,355 INFO L225 Difference]: With dead ends: 758955 [2024-11-09 23:39:51,355 INFO L226 Difference]: Without dead ends: 638542 [2024-11-09 23:39:51,586 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-09 23:39:51,586 INFO L432 NwaCegarLoop]: 691 mSDtfsCounter, 1050 mSDsluCounter, 1963 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1050 SdHoareTripleChecker+Valid, 2654 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 23:39:51,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1050 Valid, 2654 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 23:39:52,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638542 states.