./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 3289d67d 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/bitvector/s3_clnt_3.BV.c.cil-1a.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 ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:00:27,450 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:00:27,504 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:00:27,510 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:00:27,512 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:00:27,535 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:00:27,536 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:00:27,537 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:00:27,537 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:00:27,538 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:00:27,538 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:00:27,538 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:00:27,539 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:00:27,540 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:00:27,542 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:00:27,542 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:00:27,543 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:00:27,543 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:00:27,543 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:00:27,543 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:00:27,543 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:00:27,544 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:00:27,546 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:00:27,546 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:00:27,546 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:00:27,547 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:00:27,547 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:00:27,547 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:00:27,547 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:00:27,547 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:00:27,547 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:00:27,547 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:00:27,548 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:00:27,549 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:00:27,550 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:00:27,550 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:00:27,551 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:00:27,551 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:00:27,551 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:00:27,551 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:00:27,551 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:00:27,552 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:00:27,552 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ae696ef581cbe995636ab4900ea04e2b993d78100fba8db2a87ca7d99c3a6d1e [2024-11-16 03:00:27,817 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:00:27,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:00:27,848 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:00:27,849 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:00:27,850 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:00:27,851 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2024-11-16 03:00:29,464 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:00:29,678 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:00:29,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/s3_clnt_3.BV.c.cil-1a.c [2024-11-16 03:00:29,687 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5a545c8c/dfe519a9934046be88af4d14435e2fbf/FLAG13c7a9155 [2024-11-16 03:00:29,699 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f5a545c8c/dfe519a9934046be88af4d14435e2fbf [2024-11-16 03:00:29,702 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:00:29,703 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:00:29,704 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:00:29,704 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:00:29,708 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:00:29,710 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:00:29" (1/1) ... [2024-11-16 03:00:29,711 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@789dae32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:29, skipping insertion in model container [2024-11-16 03:00:29,711 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:00:29" (1/1) ... [2024-11-16 03:00:29,747 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:00:29,932 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/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2024-11-16 03:00:29,939 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:00:29,949 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:00:29,997 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/bitvector/s3_clnt_3.BV.c.cil-1a.c[37883,37896] [2024-11-16 03:00:30,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:00:30,014 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:00:30,014 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30 WrapperNode [2024-11-16 03:00:30,014 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:00:30,015 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:00:30,015 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:00:30,015 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:00:30,021 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,033 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,060 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 528 [2024-11-16 03:00:30,060 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:00:30,061 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:00:30,061 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:00:30,061 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:00:30,073 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,074 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,076 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,092 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]. [2024-11-16 03:00:30,092 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,092 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,097 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,098 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,099 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,100 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,102 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:00:30,103 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:00:30,103 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:00:30,103 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:00:30,104 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (1/1) ... [2024-11-16 03:00:30,109 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:00:30,119 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:30,132 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) [2024-11-16 03:00:30,135 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 [2024-11-16 03:00:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:00:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:00:30,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:00:30,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:00:30,235 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:00:30,237 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:00:30,799 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: assume false; [2024-11-16 03:00:30,799 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L213: assume !false; [2024-11-16 03:00:30,842 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-16 03:00:30,844 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:00:30,869 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:00:30,869 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:00:30,870 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:00:30 BoogieIcfgContainer [2024-11-16 03:00:30,870 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:00:30,871 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:00:30,873 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:00:30,875 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:00:30,876 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:00:29" (1/3) ... [2024-11-16 03:00:30,876 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60bba18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:00:30, skipping insertion in model container [2024-11-16 03:00:30,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:00:30" (2/3) ... [2024-11-16 03:00:30,877 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60bba18c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:00:30, skipping insertion in model container [2024-11-16 03:00:30,877 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:00:30" (3/3) ... [2024-11-16 03:00:30,879 INFO L112 eAbstractionObserver]: Analyzing ICFG s3_clnt_3.BV.c.cil-1a.c [2024-11-16 03:00:30,894 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:00:30,895 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:00:30,959 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:00:30,965 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;@6b2c78d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:00:30,968 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:00:30,973 INFO L276 IsEmpty]: Start isEmpty. Operand has 159 states, 157 states have (on average 1.605095541401274) internal successors, (252), 158 states have internal predecessors, (252), 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) [2024-11-16 03:00:30,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 03:00:30,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:30,982 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] [2024-11-16 03:00:30,983 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:30,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:30,987 INFO L85 PathProgramCache]: Analyzing trace with hash 1343947262, now seen corresponding path program 1 times [2024-11-16 03:00:30,998 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:30,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270789358] [2024-11-16 03:00:30,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:31,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:31,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:31,223 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:00:31,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:31,227 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270789358] [2024-11-16 03:00:31,227 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270789358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:31,227 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:31,227 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:31,229 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380323046] [2024-11-16 03:00:31,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:31,237 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:31,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:31,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:31,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:31,260 INFO L87 Difference]: Start difference. First operand has 159 states, 157 states have (on average 1.605095541401274) internal successors, (252), 158 states have internal predecessors, (252), 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 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-16 03:00:31,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:31,407 INFO L93 Difference]: Finished difference Result 312 states and 496 transitions. [2024-11-16 03:00:31,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:31,409 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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 28 [2024-11-16 03:00:31,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:31,416 INFO L225 Difference]: With dead ends: 312 [2024-11-16 03:00:31,416 INFO L226 Difference]: Without dead ends: 144 [2024-11-16 03:00:31,419 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 [2024-11-16 03:00:31,421 INFO L432 NwaCegarLoop]: 243 mSDtfsCounter, 7 mSDsluCounter, 137 mSDsCounter, 0 mSdLazyCounter, 102 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:31,422 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 380 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 102 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:31,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-16 03:00:31,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-16 03:00:31,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 1.4405594405594406) internal successors, (206), 143 states have internal predecessors, (206), 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) [2024-11-16 03:00:31,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 206 transitions. [2024-11-16 03:00:31,454 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 206 transitions. Word has length 28 [2024-11-16 03:00:31,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:31,454 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 206 transitions. [2024-11-16 03:00:31,455 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 9.333333333333334) internal successors, (28), 3 states have internal predecessors, (28), 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) [2024-11-16 03:00:31,455 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 206 transitions. [2024-11-16 03:00:31,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-16 03:00:31,456 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:31,456 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:00:31,457 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:00:31,457 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:31,457 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:31,458 INFO L85 PathProgramCache]: Analyzing trace with hash -1062626695, now seen corresponding path program 1 times [2024-11-16 03:00:31,458 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:31,458 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303490507] [2024-11-16 03:00:31,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:31,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:31,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:31,538 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:00:31,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:31,539 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303490507] [2024-11-16 03:00:31,539 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303490507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:31,539 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:31,539 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:31,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889203135] [2024-11-16 03:00:31,540 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:31,541 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:31,541 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:31,541 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:31,541 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:31,542 INFO L87 Difference]: Start difference. First operand 144 states and 206 transitions. Second operand has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-16 03:00:31,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:31,714 INFO L93 Difference]: Finished difference Result 293 states and 423 transitions. [2024-11-16 03:00:31,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:31,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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 45 [2024-11-16 03:00:31,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:31,715 INFO L225 Difference]: With dead ends: 293 [2024-11-16 03:00:31,715 INFO L226 Difference]: Without dead ends: 161 [2024-11-16 03:00:31,716 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 [2024-11-16 03:00:31,716 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 9 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 301 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:31,717 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 301 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:00:31,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 161 states. [2024-11-16 03:00:31,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 161 to 161. [2024-11-16 03:00:31,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 160 states have (on average 1.425) internal successors, (228), 160 states have internal predecessors, (228), 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) [2024-11-16 03:00:31,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 228 transitions. [2024-11-16 03:00:31,724 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 228 transitions. Word has length 45 [2024-11-16 03:00:31,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:31,724 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 228 transitions. [2024-11-16 03:00:31,724 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 15.0) internal successors, (45), 3 states have internal predecessors, (45), 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) [2024-11-16 03:00:31,725 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 228 transitions. [2024-11-16 03:00:31,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2024-11-16 03:00:31,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:31,726 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 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] [2024-11-16 03:00:31,726 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:00:31,726 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:31,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:31,726 INFO L85 PathProgramCache]: Analyzing trace with hash -332637705, now seen corresponding path program 1 times [2024-11-16 03:00:31,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:31,727 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1983858701] [2024-11-16 03:00:31,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:31,727 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:31,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:31,783 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 03:00:31,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:31,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1983858701] [2024-11-16 03:00:31,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1983858701] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:31,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:31,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:31,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168943254] [2024-11-16 03:00:31,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:31,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:31,784 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:31,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:31,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:31,785 INFO L87 Difference]: Start difference. First operand 161 states and 228 transitions. Second operand has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-16 03:00:31,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:31,892 INFO L93 Difference]: Finished difference Result 329 states and 471 transitions. [2024-11-16 03:00:31,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:31,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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 62 [2024-11-16 03:00:31,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:31,896 INFO L225 Difference]: With dead ends: 329 [2024-11-16 03:00:31,897 INFO L226 Difference]: Without dead ends: 180 [2024-11-16 03:00:31,897 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 [2024-11-16 03:00:31,898 INFO L432 NwaCegarLoop]: 210 mSDtfsCounter, 10 mSDsluCounter, 105 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:31,898 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 315 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:31,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2024-11-16 03:00:31,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2024-11-16 03:00:31,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 1.4078212290502794) internal successors, (252), 179 states have internal predecessors, (252), 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) [2024-11-16 03:00:31,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 252 transitions. [2024-11-16 03:00:31,905 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 252 transitions. Word has length 62 [2024-11-16 03:00:31,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:31,905 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 252 transitions. [2024-11-16 03:00:31,905 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 19.666666666666668) internal successors, (59), 3 states have internal predecessors, (59), 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) [2024-11-16 03:00:31,905 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 252 transitions. [2024-11-16 03:00:31,907 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 03:00:31,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:31,907 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:00:31,907 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:00:31,907 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:31,908 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:31,908 INFO L85 PathProgramCache]: Analyzing trace with hash 1184151388, now seen corresponding path program 1 times [2024-11-16 03:00:31,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:31,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607158918] [2024-11-16 03:00:31,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:31,908 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:31,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:32,057 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-16 03:00:32,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:32,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607158918] [2024-11-16 03:00:32,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607158918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:32,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:32,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:32,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290768407] [2024-11-16 03:00:32,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:32,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:32,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:32,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:32,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:32,059 INFO L87 Difference]: Start difference. First operand 180 states and 252 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-16 03:00:32,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:32,091 INFO L93 Difference]: Finished difference Result 512 states and 719 transitions. [2024-11-16 03:00:32,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:32,091 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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 84 [2024-11-16 03:00:32,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:32,094 INFO L225 Difference]: With dead ends: 512 [2024-11-16 03:00:32,094 INFO L226 Difference]: Without dead ends: 344 [2024-11-16 03:00:32,095 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 [2024-11-16 03:00:32,095 INFO L432 NwaCegarLoop]: 244 mSDtfsCounter, 152 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 152 SdHoareTripleChecker+Valid, 431 SdHoareTripleChecker+Invalid, 27 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:32,096 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [152 Valid, 431 Invalid, 27 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:32,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-16 03:00:32,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 344. [2024-11-16 03:00:32,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 343 states have (on average 1.3935860058309038) internal successors, (478), 343 states have internal predecessors, (478), 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) [2024-11-16 03:00:32,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 478 transitions. [2024-11-16 03:00:32,117 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 478 transitions. Word has length 84 [2024-11-16 03:00:32,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:32,121 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 478 transitions. [2024-11-16 03:00:32,121 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 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) [2024-11-16 03:00:32,121 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 478 transitions. [2024-11-16 03:00:32,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 03:00:32,123 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:32,123 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:00:32,123 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:00:32,123 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:32,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:32,124 INFO L85 PathProgramCache]: Analyzing trace with hash -1789946964, now seen corresponding path program 1 times [2024-11-16 03:00:32,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:32,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842151345] [2024-11-16 03:00:32,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:32,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:32,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:32,176 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-16 03:00:32,176 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:32,177 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842151345] [2024-11-16 03:00:32,177 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842151345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:32,177 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:32,177 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:32,177 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591710915] [2024-11-16 03:00:32,177 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:32,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:32,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:32,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:32,178 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:32,178 INFO L87 Difference]: Start difference. First operand 344 states and 478 transitions. Second operand has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-16 03:00:32,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:32,198 INFO L93 Difference]: Finished difference Result 700 states and 970 transitions. [2024-11-16 03:00:32,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:32,199 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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 85 [2024-11-16 03:00:32,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:32,200 INFO L225 Difference]: With dead ends: 700 [2024-11-16 03:00:32,200 INFO L226 Difference]: Without dead ends: 368 [2024-11-16 03:00:32,202 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 [2024-11-16 03:00:32,202 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 11 mSDsluCounter, 187 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 407 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:32,203 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 407 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:32,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-16 03:00:32,212 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-16 03:00:32,213 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 367 states have (on average 1.3841961852861036) internal successors, (508), 367 states have internal predecessors, (508), 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) [2024-11-16 03:00:32,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 508 transitions. [2024-11-16 03:00:32,214 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 508 transitions. Word has length 85 [2024-11-16 03:00:32,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:32,214 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 508 transitions. [2024-11-16 03:00:32,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 27.333333333333332) internal successors, (82), 3 states have internal predecessors, (82), 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) [2024-11-16 03:00:32,215 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 508 transitions. [2024-11-16 03:00:32,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-16 03:00:32,216 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:32,216 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:00:32,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 03:00:32,216 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:32,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:32,216 INFO L85 PathProgramCache]: Analyzing trace with hash -656756371, now seen corresponding path program 1 times [2024-11-16 03:00:32,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:32,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [353736896] [2024-11-16 03:00:32,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:32,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:32,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:32,297 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-16 03:00:32,297 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:32,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [353736896] [2024-11-16 03:00:32,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [353736896] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:32,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:32,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:32,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1224460000] [2024-11-16 03:00:32,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:32,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:32,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:32,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:32,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:32,298 INFO L87 Difference]: Start difference. First operand 368 states and 508 transitions. Second operand has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-16 03:00:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:32,324 INFO L93 Difference]: Finished difference Result 756 states and 1039 transitions. [2024-11-16 03:00:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:32,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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 85 [2024-11-16 03:00:32,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:32,326 INFO L225 Difference]: With dead ends: 756 [2024-11-16 03:00:32,326 INFO L226 Difference]: Without dead ends: 400 [2024-11-16 03:00:32,327 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 [2024-11-16 03:00:32,327 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 21 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:32,328 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 375 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:32,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-16 03:00:32,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 400. [2024-11-16 03:00:32,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 399 states have (on average 1.3709273182957393) internal successors, (547), 399 states have internal predecessors, (547), 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) [2024-11-16 03:00:32,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 547 transitions. [2024-11-16 03:00:32,343 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 547 transitions. Word has length 85 [2024-11-16 03:00:32,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:32,344 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 547 transitions. [2024-11-16 03:00:32,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.0) internal successors, (69), 3 states have internal predecessors, (69), 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) [2024-11-16 03:00:32,344 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 547 transitions. [2024-11-16 03:00:32,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 03:00:32,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:32,346 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 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] [2024-11-16 03:00:32,346 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:00:32,346 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:32,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:32,347 INFO L85 PathProgramCache]: Analyzing trace with hash 283066354, now seen corresponding path program 1 times [2024-11-16 03:00:32,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:32,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940015061] [2024-11-16 03:00:32,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:32,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:32,422 INFO L134 CoverageAnalysis]: Checked inductivity of 97 backedges. 47 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-16 03:00:32,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:32,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940015061] [2024-11-16 03:00:32,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940015061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:32,423 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:32,423 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:32,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178785092] [2024-11-16 03:00:32,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:32,423 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:32,423 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:32,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:32,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:32,424 INFO L87 Difference]: Start difference. First operand 400 states and 547 transitions. Second operand has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2024-11-16 03:00:32,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:32,537 INFO L93 Difference]: Finished difference Result 802 states and 1118 transitions. [2024-11-16 03:00:32,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:32,538 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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 106 [2024-11-16 03:00:32,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:32,539 INFO L225 Difference]: With dead ends: 802 [2024-11-16 03:00:32,539 INFO L226 Difference]: Without dead ends: 446 [2024-11-16 03:00:32,540 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 [2024-11-16 03:00:32,541 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 9 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:32,543 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 320 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:32,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-16 03:00:32,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2024-11-16 03:00:32,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.355056179775281) internal successors, (603), 445 states have internal predecessors, (603), 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) [2024-11-16 03:00:32,553 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 603 transitions. [2024-11-16 03:00:32,554 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 603 transitions. Word has length 106 [2024-11-16 03:00:32,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:32,554 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 603 transitions. [2024-11-16 03:00:32,554 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 26.333333333333332) internal successors, (79), 3 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) [2024-11-16 03:00:32,554 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 603 transitions. [2024-11-16 03:00:32,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-16 03:00:32,556 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:32,556 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 3, 3, 3, 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] [2024-11-16 03:00:32,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:00:32,556 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:32,557 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:32,557 INFO L85 PathProgramCache]: Analyzing trace with hash -691181013, now seen corresponding path program 1 times [2024-11-16 03:00:32,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:32,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1048943622] [2024-11-16 03:00:32,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:32,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:32,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:32,627 INFO L134 CoverageAnalysis]: Checked inductivity of 162 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-16 03:00:32,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:32,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1048943622] [2024-11-16 03:00:32,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1048943622] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:32,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:32,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:32,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [797740643] [2024-11-16 03:00:32,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:32,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:32,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:32,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:32,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:32,633 INFO L87 Difference]: Start difference. First operand 446 states and 603 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-16 03:00:32,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:32,670 INFO L93 Difference]: Finished difference Result 637 states and 866 transitions. [2024-11-16 03:00:32,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:32,670 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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 129 [2024-11-16 03:00:32,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:32,673 INFO L225 Difference]: With dead ends: 637 [2024-11-16 03:00:32,673 INFO L226 Difference]: Without dead ends: 634 [2024-11-16 03:00:32,674 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 [2024-11-16 03:00:32,675 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 168 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 168 SdHoareTripleChecker+Valid, 365 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:32,677 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [168 Valid, 365 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:32,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 634 states. [2024-11-16 03:00:32,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 634 to 634. [2024-11-16 03:00:32,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 634 states, 633 states have (on average 1.363349131121643) internal successors, (863), 633 states have internal predecessors, (863), 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) [2024-11-16 03:00:32,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 634 states to 634 states and 863 transitions. [2024-11-16 03:00:32,690 INFO L78 Accepts]: Start accepts. Automaton has 634 states and 863 transitions. Word has length 129 [2024-11-16 03:00:32,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:32,691 INFO L471 AbstractCegarLoop]: Abstraction has 634 states and 863 transitions. [2024-11-16 03:00:32,691 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 3 states have internal predecessors, (86), 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) [2024-11-16 03:00:32,691 INFO L276 IsEmpty]: Start isEmpty. Operand 634 states and 863 transitions. [2024-11-16 03:00:32,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-16 03:00:32,693 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:32,693 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 3, 3, 3, 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] [2024-11-16 03:00:32,694 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 03:00:32,694 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:32,694 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:32,694 INFO L85 PathProgramCache]: Analyzing trace with hash -1899132680, now seen corresponding path program 1 times [2024-11-16 03:00:32,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:32,695 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [72529818] [2024-11-16 03:00:32,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:32,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:32,774 INFO L134 CoverageAnalysis]: Checked inductivity of 242 backedges. 145 proven. 0 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-11-16 03:00:32,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:32,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [72529818] [2024-11-16 03:00:32,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [72529818] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:32,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:32,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:32,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1258082361] [2024-11-16 03:00:32,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:32,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:32,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:32,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:32,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:32,776 INFO L87 Difference]: Start difference. First operand 634 states and 863 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-11-16 03:00:32,925 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:32,926 INFO L93 Difference]: Finished difference Result 1356 states and 1910 transitions. [2024-11-16 03:00:32,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:32,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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 152 [2024-11-16 03:00:32,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:32,929 INFO L225 Difference]: With dead ends: 1356 [2024-11-16 03:00:32,929 INFO L226 Difference]: Without dead ends: 763 [2024-11-16 03:00:32,930 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 [2024-11-16 03:00:32,930 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 51 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 161 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 298 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 161 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:32,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 298 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 161 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:32,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 763 states. [2024-11-16 03:00:32,942 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 763 to 763. [2024-11-16 03:00:32,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 763 states, 762 states have (on average 1.400262467191601) internal successors, (1067), 762 states have internal predecessors, (1067), 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) [2024-11-16 03:00:32,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 763 states to 763 states and 1067 transitions. [2024-11-16 03:00:32,945 INFO L78 Accepts]: Start accepts. Automaton has 763 states and 1067 transitions. Word has length 152 [2024-11-16 03:00:32,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:32,945 INFO L471 AbstractCegarLoop]: Abstraction has 763 states and 1067 transitions. [2024-11-16 03:00:32,945 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 3 states have internal predecessors, (109), 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) [2024-11-16 03:00:32,946 INFO L276 IsEmpty]: Start isEmpty. Operand 763 states and 1067 transitions. [2024-11-16 03:00:32,948 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2024-11-16 03:00:32,948 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:32,948 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 8, 8, 8, 7, 7, 7, 7, 7, 5, 5, 3, 3, 3, 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] [2024-11-16 03:00:32,948 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:00:32,948 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:32,949 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:32,949 INFO L85 PathProgramCache]: Analyzing trace with hash 1031428576, now seen corresponding path program 1 times [2024-11-16 03:00:32,949 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:32,949 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915788826] [2024-11-16 03:00:32,949 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:32,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:32,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:33,022 INFO L134 CoverageAnalysis]: Checked inductivity of 386 backedges. 251 proven. 0 refuted. 0 times theorem prover too weak. 135 trivial. 0 not checked. [2024-11-16 03:00:33,022 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:33,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915788826] [2024-11-16 03:00:33,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915788826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:33,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:33,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:33,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [712089429] [2024-11-16 03:00:33,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:33,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:33,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:33,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:33,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:33,025 INFO L87 Difference]: Start difference. First operand 763 states and 1067 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-11-16 03:00:33,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:33,165 INFO L93 Difference]: Finished difference Result 1737 states and 2516 transitions. [2024-11-16 03:00:33,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:33,165 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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 [2024-11-16 03:00:33,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:33,169 INFO L225 Difference]: With dead ends: 1737 [2024-11-16 03:00:33,170 INFO L226 Difference]: Without dead ends: 967 [2024-11-16 03:00:33,171 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 [2024-11-16 03:00:33,172 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 47 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 146 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 172 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:33,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 292 Invalid, 172 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 146 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:33,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 967 states. [2024-11-16 03:00:33,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 967 to 964. [2024-11-16 03:00:33,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 964 states, 963 states have (on average 1.3821391484942886) internal successors, (1331), 963 states have internal predecessors, (1331), 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) [2024-11-16 03:00:33,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 964 states to 964 states and 1331 transitions. [2024-11-16 03:00:33,196 INFO L78 Accepts]: Start accepts. Automaton has 964 states and 1331 transitions. Word has length 186 [2024-11-16 03:00:33,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:33,196 INFO L471 AbstractCegarLoop]: Abstraction has 964 states and 1331 transitions. [2024-11-16 03:00:33,196 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 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) [2024-11-16 03:00:33,196 INFO L276 IsEmpty]: Start isEmpty. Operand 964 states and 1331 transitions. [2024-11-16 03:00:33,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-16 03:00:33,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:33,199 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 9, 8, 8, 8, 8, 8, 6, 6, 4, 4, 4, 3, 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, 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] [2024-11-16 03:00:33,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 03:00:33,199 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:33,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:33,200 INFO L85 PathProgramCache]: Analyzing trace with hash 302957313, now seen corresponding path program 1 times [2024-11-16 03:00:33,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:33,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611321217] [2024-11-16 03:00:33,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:33,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:33,271 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 307 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2024-11-16 03:00:33,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:33,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611321217] [2024-11-16 03:00:33,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611321217] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:33,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:33,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:33,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [666504469] [2024-11-16 03:00:33,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:33,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:33,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:33,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:33,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:33,274 INFO L87 Difference]: Start difference. First operand 964 states and 1331 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2024-11-16 03:00:33,431 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:33,431 INFO L93 Difference]: Finished difference Result 2013 states and 2810 transitions. [2024-11-16 03:00:33,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:33,432 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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 210 [2024-11-16 03:00:33,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:33,434 INFO L225 Difference]: With dead ends: 2013 [2024-11-16 03:00:33,435 INFO L226 Difference]: Without dead ends: 1048 [2024-11-16 03:00:33,437 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 [2024-11-16 03:00:33,438 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 48 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 149 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 149 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:33,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 292 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 149 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:33,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1048 states. [2024-11-16 03:00:33,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1048 to 1045. [2024-11-16 03:00:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1045 states, 1044 states have (on average 1.3726053639846743) internal successors, (1433), 1044 states have internal predecessors, (1433), 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) [2024-11-16 03:00:33,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1045 states to 1045 states and 1433 transitions. [2024-11-16 03:00:33,453 INFO L78 Accepts]: Start accepts. Automaton has 1045 states and 1433 transitions. Word has length 210 [2024-11-16 03:00:33,453 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:33,453 INFO L471 AbstractCegarLoop]: Abstraction has 1045 states and 1433 transitions. [2024-11-16 03:00:33,453 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 3 states have internal predecessors, (126), 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) [2024-11-16 03:00:33,454 INFO L276 IsEmpty]: Start isEmpty. Operand 1045 states and 1433 transitions. [2024-11-16 03:00:33,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-16 03:00:33,455 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:33,456 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 5, 4, 3, 3, 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, 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] [2024-11-16 03:00:33,456 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:00:33,456 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:33,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:33,456 INFO L85 PathProgramCache]: Analyzing trace with hash 1698134793, now seen corresponding path program 1 times [2024-11-16 03:00:33,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:33,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151110755] [2024-11-16 03:00:33,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:33,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:33,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-11-16 03:00:33,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:33,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151110755] [2024-11-16 03:00:33,533 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151110755] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:33,533 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:33,533 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:33,533 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279411137] [2024-11-16 03:00:33,533 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:33,534 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:33,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:33,535 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:33,535 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:33,535 INFO L87 Difference]: Start difference. First operand 1045 states and 1433 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-11-16 03:00:33,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:33,665 INFO L93 Difference]: Finished difference Result 2178 states and 3017 transitions. [2024-11-16 03:00:33,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:33,665 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 237 [2024-11-16 03:00:33,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:33,669 INFO L225 Difference]: With dead ends: 2178 [2024-11-16 03:00:33,669 INFO L226 Difference]: Without dead ends: 1138 [2024-11-16 03:00:33,671 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 [2024-11-16 03:00:33,671 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 48 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 176 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:33,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 292 Invalid, 176 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:33,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1138 states. [2024-11-16 03:00:33,688 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1138 to 1135. [2024-11-16 03:00:33,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1135 states, 1134 states have (on average 1.3668430335097002) internal successors, (1550), 1134 states have internal predecessors, (1550), 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) [2024-11-16 03:00:33,693 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1135 states to 1135 states and 1550 transitions. [2024-11-16 03:00:33,694 INFO L78 Accepts]: Start accepts. Automaton has 1135 states and 1550 transitions. Word has length 237 [2024-11-16 03:00:33,694 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:33,694 INFO L471 AbstractCegarLoop]: Abstraction has 1135 states and 1550 transitions. [2024-11-16 03:00:33,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-11-16 03:00:33,694 INFO L276 IsEmpty]: Start isEmpty. Operand 1135 states and 1550 transitions. [2024-11-16 03:00:33,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2024-11-16 03:00:33,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:33,696 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 10, 9, 9, 9, 9, 9, 7, 7, 5, 5, 5, 4, 3, 3, 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, 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] [2024-11-16 03:00:33,697 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:00:33,697 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:33,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:33,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1388914328, now seen corresponding path program 1 times [2024-11-16 03:00:33,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:33,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1196402459] [2024-11-16 03:00:33,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:33,698 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:33,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:33,758 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 360 proven. 0 refuted. 0 times theorem prover too weak. 285 trivial. 0 not checked. [2024-11-16 03:00:33,759 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:33,759 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1196402459] [2024-11-16 03:00:33,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1196402459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:33,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:33,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:33,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905708069] [2024-11-16 03:00:33,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:33,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:33,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:33,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:33,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:33,760 INFO L87 Difference]: Start difference. First operand 1135 states and 1550 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-11-16 03:00:33,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:33,911 INFO L93 Difference]: Finished difference Result 2355 states and 3248 transitions. [2024-11-16 03:00:33,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:33,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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 237 [2024-11-16 03:00:33,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:33,914 INFO L225 Difference]: With dead ends: 2355 [2024-11-16 03:00:33,915 INFO L226 Difference]: Without dead ends: 1237 [2024-11-16 03:00:33,917 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 [2024-11-16 03:00:33,918 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 48 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 291 SdHoareTripleChecker+Invalid, 180 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:33,918 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 291 Invalid, 180 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:33,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1237 states. [2024-11-16 03:00:33,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1237 to 1234. [2024-11-16 03:00:33,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1234 states, 1233 states have (on average 1.3690186536901865) internal successors, (1688), 1233 states have internal predecessors, (1688), 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) [2024-11-16 03:00:33,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1234 states to 1234 states and 1688 transitions. [2024-11-16 03:00:33,939 INFO L78 Accepts]: Start accepts. Automaton has 1234 states and 1688 transitions. Word has length 237 [2024-11-16 03:00:33,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:33,939 INFO L471 AbstractCegarLoop]: Abstraction has 1234 states and 1688 transitions. [2024-11-16 03:00:33,939 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 3 states have internal predecessors, (134), 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) [2024-11-16 03:00:33,939 INFO L276 IsEmpty]: Start isEmpty. Operand 1234 states and 1688 transitions. [2024-11-16 03:00:33,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-16 03:00:33,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:33,942 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 6, 5, 4, 4, 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, 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] [2024-11-16 03:00:33,942 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:00:33,942 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:33,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:33,943 INFO L85 PathProgramCache]: Analyzing trace with hash 1871176501, now seen corresponding path program 1 times [2024-11-16 03:00:33,943 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:33,943 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752598238] [2024-11-16 03:00:33,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:33,943 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:33,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:34,038 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-16 03:00:34,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:34,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752598238] [2024-11-16 03:00:34,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752598238] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:34,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:34,039 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:34,039 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740878997] [2024-11-16 03:00:34,039 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:34,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:34,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:34,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:34,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:34,040 INFO L87 Difference]: Start difference. First operand 1234 states and 1688 transitions. Second operand has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2024-11-16 03:00:34,074 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:34,074 INFO L93 Difference]: Finished difference Result 3611 states and 4949 transitions. [2024-11-16 03:00:34,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:34,074 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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 270 [2024-11-16 03:00:34,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:34,081 INFO L225 Difference]: With dead ends: 3611 [2024-11-16 03:00:34,081 INFO L226 Difference]: Without dead ends: 2421 [2024-11-16 03:00:34,082 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 [2024-11-16 03:00:34,083 INFO L432 NwaCegarLoop]: 378 mSDtfsCounter, 155 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 573 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:34,084 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 573 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:34,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2421 states. [2024-11-16 03:00:34,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2421 to 2418. [2024-11-16 03:00:34,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2418 states, 2417 states have (on average 1.3702937525858503) internal successors, (3312), 2417 states have internal predecessors, (3312), 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) [2024-11-16 03:00:34,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2418 states to 2418 states and 3312 transitions. [2024-11-16 03:00:34,124 INFO L78 Accepts]: Start accepts. Automaton has 2418 states and 3312 transitions. Word has length 270 [2024-11-16 03:00:34,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:34,124 INFO L471 AbstractCegarLoop]: Abstraction has 2418 states and 3312 transitions. [2024-11-16 03:00:34,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.666666666666664) internal successors, (161), 3 states have internal predecessors, (161), 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) [2024-11-16 03:00:34,124 INFO L276 IsEmpty]: Start isEmpty. Operand 2418 states and 3312 transitions. [2024-11-16 03:00:34,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-16 03:00:34,128 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:34,128 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 10, 10, 10, 10, 10, 8, 8, 6, 6, 6, 5, 4, 4, 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, 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] [2024-11-16 03:00:34,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:00:34,128 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:34,129 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:34,129 INFO L85 PathProgramCache]: Analyzing trace with hash -1215872620, now seen corresponding path program 1 times [2024-11-16 03:00:34,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:34,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667455043] [2024-11-16 03:00:34,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:34,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:34,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:34,197 INFO L134 CoverageAnalysis]: Checked inductivity of 805 backedges. 413 proven. 0 refuted. 0 times theorem prover too weak. 392 trivial. 0 not checked. [2024-11-16 03:00:34,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:34,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667455043] [2024-11-16 03:00:34,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667455043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:34,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:34,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:34,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933358717] [2024-11-16 03:00:34,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:34,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:34,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:34,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:34,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:34,200 INFO L87 Difference]: Start difference. First operand 2418 states and 3312 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-16 03:00:34,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:34,364 INFO L93 Difference]: Finished difference Result 5050 states and 6976 transitions. [2024-11-16 03:00:34,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:34,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 270 [2024-11-16 03:00:34,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:34,371 INFO L225 Difference]: With dead ends: 5050 [2024-11-16 03:00:34,371 INFO L226 Difference]: Without dead ends: 2646 [2024-11-16 03:00:34,373 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 [2024-11-16 03:00:34,374 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 49 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 288 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:34,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 288 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:34,377 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2646 states. [2024-11-16 03:00:34,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2646 to 2640. [2024-11-16 03:00:34,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2640 states, 2639 states have (on average 1.3777946191739294) internal successors, (3636), 2639 states have internal predecessors, (3636), 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) [2024-11-16 03:00:34,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2640 states to 2640 states and 3636 transitions. [2024-11-16 03:00:34,418 INFO L78 Accepts]: Start accepts. Automaton has 2640 states and 3636 transitions. Word has length 270 [2024-11-16 03:00:34,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:34,418 INFO L471 AbstractCegarLoop]: Abstraction has 2640 states and 3636 transitions. [2024-11-16 03:00:34,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-16 03:00:34,418 INFO L276 IsEmpty]: Start isEmpty. Operand 2640 states and 3636 transitions. [2024-11-16 03:00:34,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 309 [2024-11-16 03:00:34,422 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:34,422 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 11, 11, 11, 11, 11, 9, 9, 7, 7, 7, 6, 5, 5, 3, 3, 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, 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] [2024-11-16 03:00:34,422 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:00:34,422 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:34,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:34,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1339017373, now seen corresponding path program 1 times [2024-11-16 03:00:34,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:34,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885507694] [2024-11-16 03:00:34,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:34,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:34,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:34,486 INFO L134 CoverageAnalysis]: Checked inductivity of 993 backedges. 466 proven. 0 refuted. 0 times theorem prover too weak. 527 trivial. 0 not checked. [2024-11-16 03:00:34,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:34,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885507694] [2024-11-16 03:00:34,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885507694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:34,488 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:34,488 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:34,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1930421073] [2024-11-16 03:00:34,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:34,489 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:34,489 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:34,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:34,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:34,490 INFO L87 Difference]: Start difference. First operand 2640 states and 3636 transitions. Second operand has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2024-11-16 03:00:34,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:34,631 INFO L93 Difference]: Finished difference Result 5242 states and 7222 transitions. [2024-11-16 03:00:34,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:34,631 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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 308 [2024-11-16 03:00:34,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:34,638 INFO L225 Difference]: With dead ends: 5242 [2024-11-16 03:00:34,639 INFO L226 Difference]: Without dead ends: 2628 [2024-11-16 03:00:34,641 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 [2024-11-16 03:00:34,642 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 51 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 165 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 51 SdHoareTripleChecker+Valid, 284 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 165 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:34,642 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [51 Valid, 284 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 165 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:34,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2628 states. [2024-11-16 03:00:34,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2628 to 2622. [2024-11-16 03:00:34,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2622 states, 2621 states have (on average 1.3666539488744753) internal successors, (3582), 2621 states have internal predecessors, (3582), 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) [2024-11-16 03:00:34,716 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2622 states to 2622 states and 3582 transitions. [2024-11-16 03:00:34,717 INFO L78 Accepts]: Start accepts. Automaton has 2622 states and 3582 transitions. Word has length 308 [2024-11-16 03:00:34,717 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:34,718 INFO L471 AbstractCegarLoop]: Abstraction has 2622 states and 3582 transitions. [2024-11-16 03:00:34,718 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.333333333333336) internal successors, (157), 3 states have internal predecessors, (157), 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) [2024-11-16 03:00:34,718 INFO L276 IsEmpty]: Start isEmpty. Operand 2622 states and 3582 transitions. [2024-11-16 03:00:34,723 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-11-16 03:00:34,723 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:34,724 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 8, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:00:34,724 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 03:00:34,725 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:34,725 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:34,725 INFO L85 PathProgramCache]: Analyzing trace with hash 1839132786, now seen corresponding path program 1 times [2024-11-16 03:00:34,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:34,725 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649986218] [2024-11-16 03:00:34,725 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:34,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:34,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:34,826 INFO L134 CoverageAnalysis]: Checked inductivity of 974 backedges. 304 proven. 0 refuted. 0 times theorem prover too weak. 670 trivial. 0 not checked. [2024-11-16 03:00:34,827 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:34,827 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649986218] [2024-11-16 03:00:34,827 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649986218] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:34,827 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:34,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:34,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147210206] [2024-11-16 03:00:34,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:34,828 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:34,828 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:34,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:34,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:34,829 INFO L87 Difference]: Start difference. First operand 2622 states and 3582 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 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) [2024-11-16 03:00:34,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:34,881 INFO L93 Difference]: Finished difference Result 7748 states and 10581 transitions. [2024-11-16 03:00:34,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:34,881 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 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 313 [2024-11-16 03:00:34,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:34,893 INFO L225 Difference]: With dead ends: 7748 [2024-11-16 03:00:34,893 INFO L226 Difference]: Without dead ends: 5170 [2024-11-16 03:00:34,895 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 [2024-11-16 03:00:34,896 INFO L432 NwaCegarLoop]: 200 mSDtfsCounter, 81 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:34,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 384 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:34,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5170 states. [2024-11-16 03:00:34,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5170 to 5167. [2024-11-16 03:00:34,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 1.3617886178861789) internal successors, (7035), 5166 states have internal predecessors, (7035), 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) [2024-11-16 03:00:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 7035 transitions. [2024-11-16 03:00:34,985 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 7035 transitions. Word has length 313 [2024-11-16 03:00:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:34,985 INFO L471 AbstractCegarLoop]: Abstraction has 5167 states and 7035 transitions. [2024-11-16 03:00:34,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 3 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) [2024-11-16 03:00:34,985 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 7035 transitions. [2024-11-16 03:00:34,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 314 [2024-11-16 03:00:34,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:34,991 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 8, 8, 8, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:00:34,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 03:00:34,992 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:34,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:34,992 INFO L85 PathProgramCache]: Analyzing trace with hash 823406096, now seen corresponding path program 1 times [2024-11-16 03:00:34,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:34,992 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873071275] [2024-11-16 03:00:34,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:34,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:35,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:35,132 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 379 proven. 30 refuted. 0 times theorem prover too weak. 563 trivial. 0 not checked. [2024-11-16 03:00:35,132 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:35,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873071275] [2024-11-16 03:00:35,132 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873071275] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:00:35,132 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422166485] [2024-11-16 03:00:35,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:35,133 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:35,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:35,134 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:00:35,140 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-16 03:00:35,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:35,263 INFO L255 TraceCheckSpWp]: Trace formula consists of 556 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:00:35,272 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:00:35,326 INFO L134 CoverageAnalysis]: Checked inductivity of 972 backedges. 316 proven. 0 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-11-16 03:00:35,326 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:00:35,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422166485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:35,327 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:00:35,327 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-16 03:00:35,327 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307783298] [2024-11-16 03:00:35,327 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:35,328 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:35,328 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:35,328 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:35,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:00:35,329 INFO L87 Difference]: Start difference. First operand 5167 states and 7035 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-11-16 03:00:35,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:35,501 INFO L93 Difference]: Finished difference Result 10266 states and 13983 transitions. [2024-11-16 03:00:35,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:35,502 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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 313 [2024-11-16 03:00:35,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:35,515 INFO L225 Difference]: With dead ends: 10266 [2024-11-16 03:00:35,515 INFO L226 Difference]: Without dead ends: 5179 [2024-11-16 03:00:35,525 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 313 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:00:35,525 INFO L432 NwaCegarLoop]: 214 mSDtfsCounter, 36 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 134 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 134 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:35,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 317 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 134 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:35,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5179 states. [2024-11-16 03:00:35,731 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5179 to 5167. [2024-11-16 03:00:35,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5167 states, 5166 states have (on average 1.340882694541231) internal successors, (6927), 5166 states have internal predecessors, (6927), 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) [2024-11-16 03:00:35,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5167 states to 5167 states and 6927 transitions. [2024-11-16 03:00:35,757 INFO L78 Accepts]: Start accepts. Automaton has 5167 states and 6927 transitions. Word has length 313 [2024-11-16 03:00:35,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:35,762 INFO L471 AbstractCegarLoop]: Abstraction has 5167 states and 6927 transitions. [2024-11-16 03:00:35,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 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) [2024-11-16 03:00:35,762 INFO L276 IsEmpty]: Start isEmpty. Operand 5167 states and 6927 transitions. [2024-11-16 03:00:35,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2024-11-16 03:00:35,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:35,776 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 8, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:00:35,798 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-16 03:00:35,976 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-16 03:00:35,977 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:35,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:35,978 INFO L85 PathProgramCache]: Analyzing trace with hash -207324263, now seen corresponding path program 1 times [2024-11-16 03:00:35,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:35,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106933216] [2024-11-16 03:00:35,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:35,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:36,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:36,105 INFO L134 CoverageAnalysis]: Checked inductivity of 1233 backedges. 463 proven. 30 refuted. 0 times theorem prover too weak. 740 trivial. 0 not checked. [2024-11-16 03:00:36,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:36,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1106933216] [2024-11-16 03:00:36,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1106933216] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:00:36,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [687185333] [2024-11-16 03:00:36,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:36,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:36,106 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:36,108 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:00:36,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-16 03:00:36,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:36,236 INFO L255 TraceCheckSpWp]: Trace formula consists of 615 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:00:36,243 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:00:36,277 INFO L134 CoverageAnalysis]: Checked inductivity of 1233 backedges. 539 proven. 0 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2024-11-16 03:00:36,280 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:00:36,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [687185333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:36,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:00:36,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-16 03:00:36,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [662920625] [2024-11-16 03:00:36,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:36,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:36,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:36,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:36,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:00:36,283 INFO L87 Difference]: Start difference. First operand 5167 states and 6927 transitions. Second operand has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2024-11-16 03:00:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:36,474 INFO L93 Difference]: Finished difference Result 10776 states and 14361 transitions. [2024-11-16 03:00:36,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:36,474 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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 347 [2024-11-16 03:00:36,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:36,488 INFO L225 Difference]: With dead ends: 10776 [2024-11-16 03:00:36,488 INFO L226 Difference]: Without dead ends: 5689 [2024-11-16 03:00:36,492 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 351 GetRequests, 347 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:00:36,492 INFO L432 NwaCegarLoop]: 187 mSDtfsCounter, 61 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 271 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:36,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 271 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:36,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5689 states. [2024-11-16 03:00:36,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5689 to 5365. [2024-11-16 03:00:36,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5365 states, 5364 states have (on average 1.3394854586129754) internal successors, (7185), 5364 states have internal predecessors, (7185), 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) [2024-11-16 03:00:36,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5365 states to 5365 states and 7185 transitions. [2024-11-16 03:00:36,570 INFO L78 Accepts]: Start accepts. Automaton has 5365 states and 7185 transitions. Word has length 347 [2024-11-16 03:00:36,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:36,571 INFO L471 AbstractCegarLoop]: Abstraction has 5365 states and 7185 transitions. [2024-11-16 03:00:36,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.0) internal successors, (165), 3 states have internal predecessors, (165), 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) [2024-11-16 03:00:36,571 INFO L276 IsEmpty]: Start isEmpty. Operand 5365 states and 7185 transitions. [2024-11-16 03:00:36,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 349 [2024-11-16 03:00:36,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:36,578 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 13, 13, 13, 13, 13, 12, 12, 12, 10, 10, 8, 8, 8, 7, 6, 6, 4, 4, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-16 03:00:36,593 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 03:00:36,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:36,779 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:36,780 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:36,780 INFO L85 PathProgramCache]: Analyzing trace with hash 2121969203, now seen corresponding path program 1 times [2024-11-16 03:00:36,780 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:36,780 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2116049125] [2024-11-16 03:00:36,780 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:36,780 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:36,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:36,870 INFO L134 CoverageAnalysis]: Checked inductivity of 1235 backedges. 541 proven. 0 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2024-11-16 03:00:36,871 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:36,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2116049125] [2024-11-16 03:00:36,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2116049125] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:36,871 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:00:36,871 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:00:36,871 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [526348502] [2024-11-16 03:00:36,871 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:36,872 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:36,872 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:36,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:36,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:00:36,873 INFO L87 Difference]: Start difference. First operand 5365 states and 7185 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2024-11-16 03:00:37,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:37,067 INFO L93 Difference]: Finished difference Result 10974 states and 14595 transitions. [2024-11-16 03:00:37,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:37,068 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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 348 [2024-11-16 03:00:37,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:37,076 INFO L225 Difference]: With dead ends: 10974 [2024-11-16 03:00:37,080 INFO L226 Difference]: Without dead ends: 5161 [2024-11-16 03:00:37,086 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 [2024-11-16 03:00:37,087 INFO L432 NwaCegarLoop]: 215 mSDtfsCounter, 39 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:37,088 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 322 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 03:00:37,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5161 states. [2024-11-16 03:00:37,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5161 to 5137. [2024-11-16 03:00:37,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5137 states, 5136 states have (on average 1.3358644859813085) internal successors, (6861), 5136 states have internal predecessors, (6861), 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) [2024-11-16 03:00:37,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5137 states to 5137 states and 6861 transitions. [2024-11-16 03:00:37,191 INFO L78 Accepts]: Start accepts. Automaton has 5137 states and 6861 transitions. Word has length 348 [2024-11-16 03:00:37,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:37,192 INFO L471 AbstractCegarLoop]: Abstraction has 5137 states and 6861 transitions. [2024-11-16 03:00:37,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 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) [2024-11-16 03:00:37,192 INFO L276 IsEmpty]: Start isEmpty. Operand 5137 states and 6861 transitions. [2024-11-16 03:00:37,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-16 03:00:37,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:37,201 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:00:37,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 03:00:37,201 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:37,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:37,202 INFO L85 PathProgramCache]: Analyzing trace with hash 1984618281, now seen corresponding path program 1 times [2024-11-16 03:00:37,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:37,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955596710] [2024-11-16 03:00:37,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:37,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:37,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:37,352 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 426 proven. 30 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2024-11-16 03:00:37,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:37,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1955596710] [2024-11-16 03:00:37,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1955596710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:00:37,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [986032998] [2024-11-16 03:00:37,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:37,353 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:37,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:37,354 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:00:37,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-16 03:00:37,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:37,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 601 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:00:37,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:00:37,801 INFO L134 CoverageAnalysis]: Checked inductivity of 1207 backedges. 203 proven. 0 refuted. 0 times theorem prover too weak. 1004 trivial. 0 not checked. [2024-11-16 03:00:37,801 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:00:37,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [986032998] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:00:37,802 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:00:37,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-16 03:00:37,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259214291] [2024-11-16 03:00:37,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:00:37,804 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:00:37,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:37,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:00:37,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:00:37,804 INFO L87 Difference]: Start difference. First operand 5137 states and 6861 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-16 03:00:37,892 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:37,892 INFO L93 Difference]: Finished difference Result 7712 states and 10281 transitions. [2024-11-16 03:00:37,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:00:37,893 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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 354 [2024-11-16 03:00:37,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:37,898 INFO L225 Difference]: With dead ends: 7712 [2024-11-16 03:00:37,898 INFO L226 Difference]: Without dead ends: 5140 [2024-11-16 03:00:37,900 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 358 GetRequests, 354 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:00:37,900 INFO L432 NwaCegarLoop]: 358 mSDtfsCounter, 65 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 543 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:37,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 543 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 03:00:37,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5140 states. [2024-11-16 03:00:37,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5140 to 5125. [2024-11-16 03:00:37,948 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 1.3319672131147542) internal successors, (6825), 5124 states have internal predecessors, (6825), 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) [2024-11-16 03:00:37,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 6825 transitions. [2024-11-16 03:00:37,953 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 6825 transitions. Word has length 354 [2024-11-16 03:00:37,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:37,953 INFO L471 AbstractCegarLoop]: Abstraction has 5125 states and 6825 transitions. [2024-11-16 03:00:37,953 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 3 states have internal predecessors, (146), 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) [2024-11-16 03:00:37,953 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 6825 transitions. [2024-11-16 03:00:37,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 355 [2024-11-16 03:00:37,959 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:37,960 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-16 03:00:37,976 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 03:00:38,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:38,161 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:38,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:38,161 INFO L85 PathProgramCache]: Analyzing trace with hash -964072310, now seen corresponding path program 1 times [2024-11-16 03:00:38,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:38,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1089141091] [2024-11-16 03:00:38,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:38,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:38,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:38,290 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 428 proven. 30 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2024-11-16 03:00:38,291 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:38,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1089141091] [2024-11-16 03:00:38,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1089141091] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:00:38,291 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27132804] [2024-11-16 03:00:38,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:38,291 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:38,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:38,295 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:00:38,306 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 03:00:38,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:38,468 INFO L255 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 03:00:38,471 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:00:38,569 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 428 proven. 30 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2024-11-16 03:00:38,570 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:00:38,669 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 428 proven. 30 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2024-11-16 03:00:38,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27132804] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:00:38,669 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:00:38,670 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2024-11-16 03:00:38,670 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256024747] [2024-11-16 03:00:38,670 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:00:38,671 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-16 03:00:38,671 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:38,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-16 03:00:38,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-16 03:00:38,672 INFO L87 Difference]: Start difference. First operand 5125 states and 6825 transitions. Second operand has 11 states, 11 states have (on average 24.636363636363637) internal successors, (271), 11 states have internal predecessors, (271), 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) [2024-11-16 03:00:39,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:39,191 INFO L93 Difference]: Finished difference Result 7922 states and 10659 transitions. [2024-11-16 03:00:39,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 03:00:39,192 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 24.636363636363637) internal successors, (271), 11 states have internal predecessors, (271), 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 354 [2024-11-16 03:00:39,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:39,200 INFO L225 Difference]: With dead ends: 7922 [2024-11-16 03:00:39,200 INFO L226 Difference]: Without dead ends: 5152 [2024-11-16 03:00:39,203 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 714 GetRequests, 702 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-11-16 03:00:39,204 INFO L432 NwaCegarLoop]: 327 mSDtfsCounter, 406 mSDsluCounter, 1581 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 406 SdHoareTripleChecker+Valid, 1908 SdHoareTripleChecker+Invalid, 927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:39,205 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [406 Valid, 1908 Invalid, 927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 892 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-16 03:00:39,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5152 states. [2024-11-16 03:00:39,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5152 to 5125. [2024-11-16 03:00:39,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5125 states, 5124 states have (on average 1.329625292740047) internal successors, (6813), 5124 states have internal predecessors, (6813), 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) [2024-11-16 03:00:39,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5125 states to 5125 states and 6813 transitions. [2024-11-16 03:00:39,266 INFO L78 Accepts]: Start accepts. Automaton has 5125 states and 6813 transitions. Word has length 354 [2024-11-16 03:00:39,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:39,266 INFO L471 AbstractCegarLoop]: Abstraction has 5125 states and 6813 transitions. [2024-11-16 03:00:39,267 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 24.636363636363637) internal successors, (271), 11 states have internal predecessors, (271), 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) [2024-11-16 03:00:39,267 INFO L276 IsEmpty]: Start isEmpty. Operand 5125 states and 6813 transitions. [2024-11-16 03:00:39,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 356 [2024-11-16 03:00:39,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:39,274 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-16 03:00:39,288 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 03:00:39,478 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:39,479 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:39,479 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:39,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1830286352, now seen corresponding path program 1 times [2024-11-16 03:00:39,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:39,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967329766] [2024-11-16 03:00:39,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:39,480 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:39,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:39,574 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 539 proven. 14 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-11-16 03:00:39,574 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:39,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967329766] [2024-11-16 03:00:39,574 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967329766] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:00:39,574 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1752522522] [2024-11-16 03:00:39,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:39,574 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:39,575 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:39,576 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:00:39,577 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-16 03:00:39,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:39,698 INFO L255 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-16 03:00:39,701 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:00:39,784 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 428 proven. 30 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2024-11-16 03:00:39,785 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:00:39,872 INFO L134 CoverageAnalysis]: Checked inductivity of 1209 backedges. 428 proven. 30 refuted. 0 times theorem prover too weak. 751 trivial. 0 not checked. [2024-11-16 03:00:39,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1752522522] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:00:39,873 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:00:39,873 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 5, 5] total 10 [2024-11-16 03:00:39,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1988731633] [2024-11-16 03:00:39,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:00:39,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-16 03:00:39,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:39,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-16 03:00:39,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-16 03:00:39,874 INFO L87 Difference]: Start difference. First operand 5125 states and 6813 transitions. Second operand has 10 states, 10 states have (on average 37.3) internal successors, (373), 10 states have internal predecessors, (373), 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) [2024-11-16 03:00:40,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:40,566 INFO L93 Difference]: Finished difference Result 6602 states and 8843 transitions. [2024-11-16 03:00:40,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-16 03:00:40,566 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 37.3) internal successors, (373), 10 states have internal predecessors, (373), 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 355 [2024-11-16 03:00:40,567 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:40,570 INFO L225 Difference]: With dead ends: 6602 [2024-11-16 03:00:40,570 INFO L226 Difference]: Without dead ends: 2562 [2024-11-16 03:00:40,574 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 722 GetRequests, 708 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-16 03:00:40,575 INFO L432 NwaCegarLoop]: 201 mSDtfsCounter, 493 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 718 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 493 SdHoareTripleChecker+Valid, 1180 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 718 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:40,575 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [493 Valid, 1180 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [41 Valid, 718 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 03:00:40,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2562 states. [2024-11-16 03:00:40,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2562 to 2544. [2024-11-16 03:00:40,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2544 states, 2543 states have (on average 1.3279591034211562) internal successors, (3377), 2543 states have internal predecessors, (3377), 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) [2024-11-16 03:00:40,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2544 states to 2544 states and 3377 transitions. [2024-11-16 03:00:40,608 INFO L78 Accepts]: Start accepts. Automaton has 2544 states and 3377 transitions. Word has length 355 [2024-11-16 03:00:40,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:40,608 INFO L471 AbstractCegarLoop]: Abstraction has 2544 states and 3377 transitions. [2024-11-16 03:00:40,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 37.3) internal successors, (373), 10 states have internal predecessors, (373), 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) [2024-11-16 03:00:40,609 INFO L276 IsEmpty]: Start isEmpty. Operand 2544 states and 3377 transitions. [2024-11-16 03:00:40,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 359 [2024-11-16 03:00:40,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:40,611 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 9, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-16 03:00:40,627 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-16 03:00:40,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2024-11-16 03:00:40,816 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:40,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:40,816 INFO L85 PathProgramCache]: Analyzing trace with hash -183742504, now seen corresponding path program 1 times [2024-11-16 03:00:40,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:40,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141835123] [2024-11-16 03:00:40,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:40,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:40,898 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 541 proven. 14 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-11-16 03:00:40,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:40,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141835123] [2024-11-16 03:00:40,899 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141835123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:00:40,899 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1126704175] [2024-11-16 03:00:40,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:40,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:40,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:40,900 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:00:40,903 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-16 03:00:41,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:41,026 INFO L255 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:00:41,029 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:00:41,090 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 541 proven. 14 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-11-16 03:00:41,090 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:00:41,156 INFO L134 CoverageAnalysis]: Checked inductivity of 1211 backedges. 541 proven. 14 refuted. 0 times theorem prover too weak. 656 trivial. 0 not checked. [2024-11-16 03:00:41,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1126704175] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:00:41,157 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:00:41,157 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-16 03:00:41,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381897661] [2024-11-16 03:00:41,157 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:00:41,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 03:00:41,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:41,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 03:00:41,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:00:41,158 INFO L87 Difference]: Start difference. First operand 2544 states and 3377 transitions. Second operand has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 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) [2024-11-16 03:00:41,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:41,624 INFO L93 Difference]: Finished difference Result 6340 states and 8545 transitions. [2024-11-16 03:00:41,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-16 03:00:41,625 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 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 358 [2024-11-16 03:00:41,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:41,630 INFO L225 Difference]: With dead ends: 6340 [2024-11-16 03:00:41,630 INFO L226 Difference]: Without dead ends: 3672 [2024-11-16 03:00:41,632 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 722 GetRequests, 716 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-11-16 03:00:41,632 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 209 mSDsluCounter, 710 mSDsCounter, 0 mSdLazyCounter, 633 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 209 SdHoareTripleChecker+Valid, 1070 SdHoareTripleChecker+Invalid, 672 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 633 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:41,633 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [209 Valid, 1070 Invalid, 672 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 633 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 03:00:41,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3672 states. [2024-11-16 03:00:41,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3672 to 2769. [2024-11-16 03:00:41,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2769 states, 2768 states have (on average 1.3359826589595376) internal successors, (3698), 2768 states have internal predecessors, (3698), 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) [2024-11-16 03:00:41,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2769 states to 2769 states and 3698 transitions. [2024-11-16 03:00:41,681 INFO L78 Accepts]: Start accepts. Automaton has 2769 states and 3698 transitions. Word has length 358 [2024-11-16 03:00:41,682 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:41,682 INFO L471 AbstractCegarLoop]: Abstraction has 2769 states and 3698 transitions. [2024-11-16 03:00:41,682 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 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) [2024-11-16 03:00:41,682 INFO L276 IsEmpty]: Start isEmpty. Operand 2769 states and 3698 transitions. [2024-11-16 03:00:41,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-16 03:00:41,687 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:00:41,687 INFO L215 NwaCegarLoop]: trace histogram [15, 15, 15, 14, 14, 14, 13, 13, 13, 13, 13, 11, 11, 9, 9, 9, 8, 7, 7, 5, 5, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 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] [2024-11-16 03:00:41,702 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-16 03:00:41,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:41,888 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:00:41,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:00:41,888 INFO L85 PathProgramCache]: Analyzing trace with hash 813039808, now seen corresponding path program 1 times [2024-11-16 03:00:41,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:00:41,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [260109117] [2024-11-16 03:00:41,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:41,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:00:41,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:42,066 INFO L134 CoverageAnalysis]: Checked inductivity of 1469 backedges. 768 proven. 7 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2024-11-16 03:00:42,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:00:42,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [260109117] [2024-11-16 03:00:42,067 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [260109117] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:00:42,067 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [167279912] [2024-11-16 03:00:42,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:00:42,067 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:42,067 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:00:42,071 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 03:00:42,072 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-16 03:00:42,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:00:42,221 INFO L255 TraceCheckSpWp]: Trace formula consists of 676 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-16 03:00:42,227 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:00:42,293 INFO L134 CoverageAnalysis]: Checked inductivity of 1469 backedges. 768 proven. 7 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2024-11-16 03:00:42,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 03:00:42,391 INFO L134 CoverageAnalysis]: Checked inductivity of 1469 backedges. 768 proven. 7 refuted. 0 times theorem prover too weak. 694 trivial. 0 not checked. [2024-11-16 03:00:42,391 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [167279912] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 03:00:42,391 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 03:00:42,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-16 03:00:42,392 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1099361311] [2024-11-16 03:00:42,392 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 03:00:42,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-16 03:00:42,393 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:00:42,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-16 03:00:42,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:00:42,394 INFO L87 Difference]: Start difference. First operand 2769 states and 3698 transitions. Second operand has 6 states, 6 states have (on average 43.333333333333336) internal successors, (260), 6 states have internal predecessors, (260), 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) [2024-11-16 03:00:42,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:00:42,600 INFO L93 Difference]: Finished difference Result 3924 states and 5197 transitions. [2024-11-16 03:00:42,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 03:00:42,601 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 43.333333333333336) internal successors, (260), 6 states have internal predecessors, (260), 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 392 [2024-11-16 03:00:42,602 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:00:42,603 INFO L225 Difference]: With dead ends: 3924 [2024-11-16 03:00:42,603 INFO L226 Difference]: Without dead ends: 0 [2024-11-16 03:00:42,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 788 GetRequests, 783 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-16 03:00:42,607 INFO L432 NwaCegarLoop]: 183 mSDtfsCounter, 115 mSDsluCounter, 410 mSDsCounter, 0 mSdLazyCounter, 274 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 593 SdHoareTripleChecker+Invalid, 304 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 274 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:00:42,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 593 Invalid, 304 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 274 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-16 03:00:42,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-16 03:00:42,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-16 03:00:42,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 03:00:42,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-16 03:00:42,608 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 392 [2024-11-16 03:00:42,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:00:42,609 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-16 03:00:42,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 43.333333333333336) internal successors, (260), 6 states have internal predecessors, (260), 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) [2024-11-16 03:00:42,609 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-16 03:00:42,609 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-16 03:00:42,612 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-16 03:00:42,631 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-16 03:00:42,813 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:00:42,817 INFO L407 BasicCegarLoop]: Path program 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] [2024-11-16 03:00:42,819 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-16 03:00:44,030 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-16 03:00:44,038 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.11 03:00:44 BoogieIcfgContainer [2024-11-16 03:00:44,038 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-16 03:00:44,039 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-16 03:00:44,039 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-16 03:00:44,039 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-16 03:00:44,039 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:00:30" (3/4) ... [2024-11-16 03:00:44,041 INFO L143 WitnessPrinter]: Generating witness for correct program [2024-11-16 03:00:44,052 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-16 03:00:44,053 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-11-16 03:00:44,054 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-16 03:00:44,054 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-16 03:00:44,203 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-16 03:00:44,203 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-16 03:00:44,203 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-16 03:00:44,204 INFO L158 Benchmark]: Toolchain (without parser) took 14500.64ms. Allocated memory was 157.3MB in the beginning and 702.5MB in the end (delta: 545.3MB). Free memory was 85.7MB in the beginning and 300.3MB in the end (delta: -214.6MB). Peak memory consumption was 332.9MB. Max. memory is 16.1GB. [2024-11-16 03:00:44,204 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-16 03:00:44,204 INFO L158 Benchmark]: CACSL2BoogieTranslator took 310.66ms. Allocated memory is still 157.3MB. Free memory was 85.7MB in the beginning and 68.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-16 03:00:44,204 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.28ms. Allocated memory is still 157.3MB. Free memory was 68.1MB in the beginning and 65.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-11-16 03:00:44,204 INFO L158 Benchmark]: Boogie Preprocessor took 41.34ms. Allocated memory is still 157.3MB. Free memory was 65.1MB in the beginning and 62.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-11-16 03:00:44,204 INFO L158 Benchmark]: IcfgBuilder took 767.08ms. Allocated memory is still 157.3MB. Free memory was 62.6MB in the beginning and 98.9MB in the end (delta: -36.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. [2024-11-16 03:00:44,204 INFO L158 Benchmark]: TraceAbstraction took 13166.81ms. Allocated memory was 157.3MB in the beginning and 702.5MB in the end (delta: 545.3MB). Free memory was 98.9MB in the beginning and 309.7MB in the end (delta: -210.9MB). Peak memory consumption was 403.0MB. Max. memory is 16.1GB. [2024-11-16 03:00:44,204 INFO L158 Benchmark]: Witness Printer took 164.47ms. Allocated memory is still 702.5MB. Free memory was 309.7MB in the beginning and 300.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2024-11-16 03:00:44,205 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 123.7MB. Free memory is still 83.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 310.66ms. Allocated memory is still 157.3MB. Free memory was 85.7MB in the beginning and 68.1MB in the end (delta: 17.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 45.28ms. Allocated memory is still 157.3MB. Free memory was 68.1MB in the beginning and 65.1MB in the end (delta: 2.9MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 41.34ms. Allocated memory is still 157.3MB. Free memory was 65.1MB in the beginning and 62.6MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * IcfgBuilder took 767.08ms. Allocated memory is still 157.3MB. Free memory was 62.6MB in the beginning and 98.9MB in the end (delta: -36.3MB). Peak memory consumption was 21.0MB. Max. memory is 16.1GB. * TraceAbstraction took 13166.81ms. Allocated memory was 157.3MB in the beginning and 702.5MB in the end (delta: 545.3MB). Free memory was 98.9MB in the beginning and 309.7MB in the end (delta: -210.9MB). Peak memory consumption was 403.0MB. Max. memory is 16.1GB. * Witness Printer took 164.47ms. Allocated memory is still 702.5MB. Free memory was 309.7MB in the beginning and 300.3MB in the end (delta: 9.4MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 624]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 159 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 11.9s, OverallIterations: 25, TraceHistogramMax: 15, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2389 SdHoareTripleChecker+Valid, 3.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2389 mSDsluCounter, 12092 SdHoareTripleChecker+Invalid, 2.7s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 6398 mSDsCounter, 382 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4565 IncrementalHoareTripleChecker+Invalid, 4947 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 382 mSolverCounterUnsat, 5694 mSDtfsCounter, 4565 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4026 GetRequests, 3959 SyntacticMatches, 0 SemanticMatches, 67 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5365occurred in iteration=19, InterpolantAutomatonStates: 92, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 25 MinimizatonAttempts, 1353 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 8101 NumberOfCodeBlocks, 8101 NumberOfCodeBlocksAsserted, 32 NumberOfCheckSat, 9524 ConstructedInterpolants, 0 QuantifiedInterpolants, 13386 SizeOfPredicates, 4 NumberOfNonLiveVariables, 4262 ConjunctsInSsa, 21 ConjunctsInUnsatCore, 36 InterpolantComputations, 21 PerfectInterpolantSequences, 29471/29788 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 109]: Location Invariant Derived location invariant: null RESULT: Ultimate proved your program to be correct! [2024-11-16 03:00:44,230 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE