./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem12_label55.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/eca-rers2012/Problem12_label55.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 fba727d7a76ab6b9efdfaecb09ee87c47b40a8cbdd36892d05e32f34590b7c75 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 03:57:08,590 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 03:57:08,659 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 03:57:08,664 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 03:57:08,665 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 03:57:08,694 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 03:57:08,695 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 03:57:08,696 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 03:57:08,697 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 03:57:08,698 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 03:57:08,699 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 03:57:08,699 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 03:57:08,700 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 03:57:08,700 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 03:57:08,701 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 03:57:08,702 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 03:57:08,702 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 03:57:08,702 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 03:57:08,703 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 03:57:08,703 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 03:57:08,703 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 03:57:08,704 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 03:57:08,704 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 03:57:08,704 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 03:57:08,705 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 03:57:08,705 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 03:57:08,705 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 03:57:08,705 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 03:57:08,706 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 03:57:08,706 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 03:57:08,706 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 03:57:08,706 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 03:57:08,707 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:57:08,707 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 03:57:08,707 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 03:57:08,708 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 03:57:08,708 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 03:57:08,708 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 03:57:08,708 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 03:57:08,709 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 03:57:08,709 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 03:57:08,710 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 03:57:08,710 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fba727d7a76ab6b9efdfaecb09ee87c47b40a8cbdd36892d05e32f34590b7c75 [2024-11-16 03:57:08,997 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 03:57:09,018 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 03:57:09,022 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 03:57:09,024 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 03:57:09,024 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 03:57:09,025 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem12_label55.c [2024-11-16 03:57:10,319 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 03:57:10,771 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 03:57:10,774 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem12_label55.c [2024-11-16 03:57:10,811 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5988504eb/d3192cbe092b4a82be7edb2071be8e88/FLAGc86f4af4f [2024-11-16 03:57:10,828 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5988504eb/d3192cbe092b4a82be7edb2071be8e88 [2024-11-16 03:57:10,832 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 03:57:10,833 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 03:57:10,835 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 03:57:10,835 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 03:57:10,842 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 03:57:10,843 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:57:10" (1/1) ... [2024-11-16 03:57:10,844 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f634b5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:10, skipping insertion in model container [2024-11-16 03:57:10,844 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 03:57:10" (1/1) ... [2024-11-16 03:57:10,943 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 03:57:11,189 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/eca-rers2012/Problem12_label55.c[1435,1448] [2024-11-16 03:57:12,026 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:57:12,036 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 03:57:12,050 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/eca-rers2012/Problem12_label55.c[1435,1448] [2024-11-16 03:57:12,527 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 03:57:12,555 INFO L204 MainTranslator]: Completed translation [2024-11-16 03:57:12,556 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12 WrapperNode [2024-11-16 03:57:12,556 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 03:57:12,557 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 03:57:12,557 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 03:57:12,557 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 03:57:12,564 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:12,642 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:12,997 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 4760 [2024-11-16 03:57:12,998 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 03:57:12,998 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 03:57:12,998 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 03:57:12,999 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 03:57:13,010 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:13,010 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:13,061 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:13,197 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 03:57:13,197 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:13,197 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:13,326 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:13,340 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:13,358 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:13,371 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:13,414 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 03:57:13,416 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 03:57:13,416 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 03:57:13,416 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 03:57:13,417 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (1/1) ... [2024-11-16 03:57:13,422 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 03:57:13,433 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:57:13,447 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 03:57:13,449 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 03:57:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 03:57:13,484 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 03:57:13,485 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 03:57:13,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 03:57:13,547 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 03:57:13,549 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 03:57:17,636 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L4665: havoc calculate_output3_#t~ret11#1; [2024-11-16 03:57:17,637 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L1696: havoc calculate_output_#t~ret9#1; [2024-11-16 03:57:17,637 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3175: havoc calculate_output2_#t~ret10#1; [2024-11-16 03:57:17,788 INFO L? ?]: Removed 702 outVars from TransFormulas that were not future-live. [2024-11-16 03:57:17,789 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 03:57:17,828 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 03:57:17,829 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 03:57:17,829 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:57:17 BoogieIcfgContainer [2024-11-16 03:57:17,829 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 03:57:17,831 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 03:57:17,832 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 03:57:17,835 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 03:57:17,835 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 03:57:10" (1/3) ... [2024-11-16 03:57:17,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb55330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:57:17, skipping insertion in model container [2024-11-16 03:57:17,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 03:57:12" (2/3) ... [2024-11-16 03:57:17,837 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6fb55330 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 03:57:17, skipping insertion in model container [2024-11-16 03:57:17,837 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 03:57:17" (3/3) ... [2024-11-16 03:57:17,838 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem12_label55.c [2024-11-16 03:57:17,856 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 03:57:17,857 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-16 03:57:17,953 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 03:57:17,961 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;@7f255cb2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 03:57:17,961 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-16 03:57:17,972 INFO L276 IsEmpty]: Start isEmpty. Operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 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 03:57:17,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-11-16 03:57:17,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:17,978 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:57:17,979 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:17,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:17,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1813221195, now seen corresponding path program 1 times [2024-11-16 03:57:17,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:17,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025172243] [2024-11-16 03:57:17,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:17,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:18,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:18,198 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 03:57:18,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:18,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025172243] [2024-11-16 03:57:18,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2025172243] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:18,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:18,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:57:18,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305695521] [2024-11-16 03:57:18,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:18,209 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:18,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:18,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:18,234 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:18,238 INFO L87 Difference]: Start difference. First operand has 821 states, 819 states have (on average 1.9145299145299146) internal successors, (1568), 820 states have internal predecessors, (1568), 0 states have call successors, (0), 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 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 03:57:21,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:21,711 INFO L93 Difference]: Finished difference Result 2394 states and 4635 transitions. [2024-11-16 03:57:21,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:21,714 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 10 [2024-11-16 03:57:21,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:21,744 INFO L225 Difference]: With dead ends: 2394 [2024-11-16 03:57:21,744 INFO L226 Difference]: Without dead ends: 1509 [2024-11-16 03:57:21,753 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 03:57:21,757 INFO L432 NwaCegarLoop]: 94 mSDtfsCounter, 851 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 2337 mSolverCounterSat, 1058 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 3395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1058 IncrementalHoareTripleChecker+Valid, 2337 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:21,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 106 Invalid, 3395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1058 Valid, 2337 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-16 03:57:21,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1509 states. [2024-11-16 03:57:21,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1509 to 1509. [2024-11-16 03:57:21,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1509 states, 1508 states have (on average 1.8680371352785146) internal successors, (2817), 1508 states have internal predecessors, (2817), 0 states have call successors, (0), 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 03:57:21,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1509 states to 1509 states and 2817 transitions. [2024-11-16 03:57:21,880 INFO L78 Accepts]: Start accepts. Automaton has 1509 states and 2817 transitions. Word has length 10 [2024-11-16 03:57:21,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:21,880 INFO L471 AbstractCegarLoop]: Abstraction has 1509 states and 2817 transitions. [2024-11-16 03:57:21,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 2 states have internal predecessors, (10), 0 states have call successors, (0), 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 03:57:21,880 INFO L276 IsEmpty]: Start isEmpty. Operand 1509 states and 2817 transitions. [2024-11-16 03:57:21,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-16 03:57:21,883 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:21,884 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 03:57:21,884 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 03:57:21,884 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:21,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:21,885 INFO L85 PathProgramCache]: Analyzing trace with hash -895845058, now seen corresponding path program 1 times [2024-11-16 03:57:21,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:21,886 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553334206] [2024-11-16 03:57:21,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:21,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:21,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:22,288 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:57:22,289 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:22,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553334206] [2024-11-16 03:57:22,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553334206] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:22,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:22,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:22,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891275261] [2024-11-16 03:57:22,292 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:22,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:57:22,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:22,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:57:22,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:22,297 INFO L87 Difference]: Start difference. First operand 1509 states and 2817 transitions. Second operand has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 03:57:27,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:27,344 INFO L93 Difference]: Finished difference Result 5281 states and 9830 transitions. [2024-11-16 03:57:27,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 03:57:27,344 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 03:57:27,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:27,360 INFO L225 Difference]: With dead ends: 5281 [2024-11-16 03:57:27,360 INFO L226 Difference]: Without dead ends: 3774 [2024-11-16 03:57:27,365 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:57:27,366 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 2296 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 3612 mSolverCounterSat, 1535 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2296 SdHoareTripleChecker+Valid, 208 SdHoareTripleChecker+Invalid, 5147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1535 IncrementalHoareTripleChecker+Valid, 3612 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:27,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2296 Valid, 208 Invalid, 5147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1535 Valid, 3612 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-16 03:57:27,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3774 states. [2024-11-16 03:57:27,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3774 to 3765. [2024-11-16 03:57:27,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3765 states, 3764 states have (on average 1.6107863974495218) internal successors, (6063), 3764 states have internal predecessors, (6063), 0 states have call successors, (0), 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 03:57:27,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3765 states to 3765 states and 6063 transitions. [2024-11-16 03:57:27,442 INFO L78 Accepts]: Start accepts. Automaton has 3765 states and 6063 transitions. Word has length 84 [2024-11-16 03:57:27,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:27,444 INFO L471 AbstractCegarLoop]: Abstraction has 3765 states and 6063 transitions. [2024-11-16 03:57:27,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.0) internal successors, (84), 3 states have internal predecessors, (84), 0 states have call successors, (0), 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 03:57:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3765 states and 6063 transitions. [2024-11-16 03:57:27,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2024-11-16 03:57:27,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:27,451 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 03:57:27,451 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 03:57:27,452 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:27,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:27,457 INFO L85 PathProgramCache]: Analyzing trace with hash 882047711, now seen corresponding path program 1 times [2024-11-16 03:57:27,457 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:27,457 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402153519] [2024-11-16 03:57:27,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:27,458 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:27,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:27,875 INFO L134 CoverageAnalysis]: Checked inductivity of 84 backedges. 84 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:57:27,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:27,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402153519] [2024-11-16 03:57:27,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [402153519] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:27,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:27,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:27,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1714283911] [2024-11-16 03:57:27,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:27,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 03:57:27,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:27,879 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 03:57:27,880 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:27,880 INFO L87 Difference]: Start difference. First operand 3765 states and 6063 transitions. Second operand has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 03:57:31,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:31,082 INFO L93 Difference]: Finished difference Result 10574 states and 17463 transitions. [2024-11-16 03:57:31,082 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 03:57:31,083 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 159 [2024-11-16 03:57:31,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:31,109 INFO L225 Difference]: With dead ends: 10574 [2024-11-16 03:57:31,111 INFO L226 Difference]: Without dead ends: 6773 [2024-11-16 03:57:31,118 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-16 03:57:31,119 INFO L432 NwaCegarLoop]: 697 mSDtfsCounter, 702 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 3107 mSolverCounterSat, 729 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 702 SdHoareTripleChecker+Valid, 714 SdHoareTripleChecker+Invalid, 3836 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 729 IncrementalHoareTripleChecker+Valid, 3107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:31,120 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [702 Valid, 714 Invalid, 3836 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [729 Valid, 3107 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-16 03:57:31,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states. [2024-11-16 03:57:31,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 6773. [2024-11-16 03:57:31,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6773 states, 6772 states have (on average 1.3613408151210868) internal successors, (9219), 6772 states have internal predecessors, (9219), 0 states have call successors, (0), 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 03:57:31,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6773 states to 6773 states and 9219 transitions. [2024-11-16 03:57:31,293 INFO L78 Accepts]: Start accepts. Automaton has 6773 states and 9219 transitions. Word has length 159 [2024-11-16 03:57:31,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:31,294 INFO L471 AbstractCegarLoop]: Abstraction has 6773 states and 9219 transitions. [2024-11-16 03:57:31,294 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 39.75) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 03:57:31,295 INFO L276 IsEmpty]: Start isEmpty. Operand 6773 states and 9219 transitions. [2024-11-16 03:57:31,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-16 03:57:31,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:31,300 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 03:57:31,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 03:57:31,300 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:31,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:31,301 INFO L85 PathProgramCache]: Analyzing trace with hash 335112622, now seen corresponding path program 1 times [2024-11-16 03:57:31,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:31,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002018163] [2024-11-16 03:57:31,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:31,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:31,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:31,662 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:57:31,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:31,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1002018163] [2024-11-16 03:57:31,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1002018163] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:31,663 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:31,663 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:31,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202903325] [2024-11-16 03:57:31,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:31,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:31,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:31,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:31,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:31,666 INFO L87 Difference]: Start difference. First operand 6773 states and 9219 transitions. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 03:57:34,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:34,100 INFO L93 Difference]: Finished difference Result 13544 states and 18436 transitions. [2024-11-16 03:57:34,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:34,101 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 229 [2024-11-16 03:57:34,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:34,120 INFO L225 Difference]: With dead ends: 13544 [2024-11-16 03:57:34,120 INFO L226 Difference]: Without dead ends: 6773 [2024-11-16 03:57:34,129 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 03:57:34,130 INFO L432 NwaCegarLoop]: 1078 mSDtfsCounter, 693 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2514 mSolverCounterSat, 418 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 693 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 2932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 418 IncrementalHoareTripleChecker+Valid, 2514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:34,130 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [693 Valid, 1086 Invalid, 2932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [418 Valid, 2514 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:57:34,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6773 states. [2024-11-16 03:57:34,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6773 to 6773. [2024-11-16 03:57:34,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6773 states, 6772 states have (on average 1.3034554046072062) internal successors, (8827), 6772 states have internal predecessors, (8827), 0 states have call successors, (0), 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 03:57:34,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6773 states to 6773 states and 8827 transitions. [2024-11-16 03:57:34,294 INFO L78 Accepts]: Start accepts. Automaton has 6773 states and 8827 transitions. Word has length 229 [2024-11-16 03:57:34,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:34,295 INFO L471 AbstractCegarLoop]: Abstraction has 6773 states and 8827 transitions. [2024-11-16 03:57:34,295 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 0 states have call successors, (0), 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 03:57:34,295 INFO L276 IsEmpty]: Start isEmpty. Operand 6773 states and 8827 transitions. [2024-11-16 03:57:34,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-16 03:57:34,298 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:34,299 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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 03:57:34,299 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 03:57:34,299 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:34,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:34,300 INFO L85 PathProgramCache]: Analyzing trace with hash -1450687368, now seen corresponding path program 1 times [2024-11-16 03:57:34,300 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:34,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [286106805] [2024-11-16 03:57:34,301 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:34,301 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:34,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:34,719 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 55 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:57:34,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:34,719 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [286106805] [2024-11-16 03:57:34,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [286106805] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:57:34,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1852419382] [2024-11-16 03:57:34,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:34,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:57:34,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:57:34,722 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 03:57:34,723 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 03:57:34,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:34,838 INFO L255 TraceCheckSpWp]: Trace formula consists of 338 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:57:34,848 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:57:34,976 INFO L134 CoverageAnalysis]: Checked inductivity of 89 backedges. 89 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 03:57:34,976 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:57:34,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1852419382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:34,977 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:57:34,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-16 03:57:34,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013514955] [2024-11-16 03:57:34,977 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:34,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:34,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:34,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:34,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:57:34,979 INFO L87 Difference]: Start difference. First operand 6773 states and 8827 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 03:57:37,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:37,603 INFO L93 Difference]: Finished difference Result 16552 states and 22447 transitions. [2024-11-16 03:57:37,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:37,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2024-11-16 03:57:37,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:37,645 INFO L225 Difference]: With dead ends: 16552 [2024-11-16 03:57:37,645 INFO L226 Difference]: Without dead ends: 9781 [2024-11-16 03:57:37,654 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 236 GetRequests, 232 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-16 03:57:37,656 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 877 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2100 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 877 SdHoareTripleChecker+Valid, 378 SdHoareTripleChecker+Invalid, 2803 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 2100 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:37,656 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [877 Valid, 378 Invalid, 2803 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 2100 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-16 03:57:37,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9781 states. [2024-11-16 03:57:37,781 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9781 to 9781. [2024-11-16 03:57:37,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9781 states, 9780 states have (on average 1.3083844580777095) internal successors, (12796), 9780 states have internal predecessors, (12796), 0 states have call successors, (0), 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 03:57:37,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9781 states to 9781 states and 12796 transitions. [2024-11-16 03:57:37,819 INFO L78 Accepts]: Start accepts. Automaton has 9781 states and 12796 transitions. Word has length 233 [2024-11-16 03:57:37,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:37,819 INFO L471 AbstractCegarLoop]: Abstraction has 9781 states and 12796 transitions. [2024-11-16 03:57:37,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 03:57:37,820 INFO L276 IsEmpty]: Start isEmpty. Operand 9781 states and 12796 transitions. [2024-11-16 03:57:37,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2024-11-16 03:57:37,822 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:37,823 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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] [2024-11-16 03:57:37,841 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-16 03:57:38,023 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:57:38,024 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:38,024 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:38,025 INFO L85 PathProgramCache]: Analyzing trace with hash 1231293660, now seen corresponding path program 1 times [2024-11-16 03:57:38,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:38,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086963436] [2024-11-16 03:57:38,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:38,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:38,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:38,274 INFO L134 CoverageAnalysis]: Checked inductivity of 112 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-16 03:57:38,275 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:38,275 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086963436] [2024-11-16 03:57:38,275 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2086963436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:38,275 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:38,275 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:38,275 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2100085397] [2024-11-16 03:57:38,276 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:38,276 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:38,276 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:38,277 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:38,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:38,277 INFO L87 Difference]: Start difference. First operand 9781 states and 12796 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 03:57:41,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:41,029 INFO L93 Difference]: Finished difference Result 27832 states and 36796 transitions. [2024-11-16 03:57:41,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:41,030 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 252 [2024-11-16 03:57:41,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:41,061 INFO L225 Difference]: With dead ends: 27832 [2024-11-16 03:57:41,061 INFO L226 Difference]: Without dead ends: 18053 [2024-11-16 03:57:41,074 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 03:57:41,079 INFO L432 NwaCegarLoop]: 1389 mSDtfsCounter, 746 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2411 mSolverCounterSat, 527 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 746 SdHoareTripleChecker+Valid, 1399 SdHoareTripleChecker+Invalid, 2938 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 527 IncrementalHoareTripleChecker+Valid, 2411 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:41,079 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [746 Valid, 1399 Invalid, 2938 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [527 Valid, 2411 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-16 03:57:41,096 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18053 states. [2024-11-16 03:57:41,253 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18053 to 18053. [2024-11-16 03:57:41,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18053 states, 18052 states have (on average 1.212829603368048) internal successors, (21894), 18052 states have internal predecessors, (21894), 0 states have call successors, (0), 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 03:57:41,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18053 states to 18053 states and 21894 transitions. [2024-11-16 03:57:41,306 INFO L78 Accepts]: Start accepts. Automaton has 18053 states and 21894 transitions. Word has length 252 [2024-11-16 03:57:41,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:41,306 INFO L471 AbstractCegarLoop]: Abstraction has 18053 states and 21894 transitions. [2024-11-16 03:57:41,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 3 states have internal predecessors, (154), 0 states have call successors, (0), 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 03:57:41,307 INFO L276 IsEmpty]: Start isEmpty. Operand 18053 states and 21894 transitions. [2024-11-16 03:57:41,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-11-16 03:57:41,310 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:41,310 INFO L215 NwaCegarLoop]: trace histogram [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, 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, 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, 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 03:57:41,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 03:57:41,310 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:41,311 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:41,311 INFO L85 PathProgramCache]: Analyzing trace with hash 633128704, now seen corresponding path program 1 times [2024-11-16 03:57:41,311 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:41,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440830944] [2024-11-16 03:57:41,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:41,312 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:41,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:41,588 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-16 03:57:41,589 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:41,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440830944] [2024-11-16 03:57:41,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [440830944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:41,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:41,590 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 03:57:41,590 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2018814448] [2024-11-16 03:57:41,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:41,591 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:41,591 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:41,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:41,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:41,592 INFO L87 Difference]: Start difference. First operand 18053 states and 21894 transitions. Second operand has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 03:57:44,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:44,192 INFO L93 Difference]: Finished difference Result 42120 states and 51637 transitions. [2024-11-16 03:57:44,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:44,192 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 273 [2024-11-16 03:57:44,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:44,230 INFO L225 Difference]: With dead ends: 42120 [2024-11-16 03:57:44,230 INFO L226 Difference]: Without dead ends: 24069 [2024-11-16 03:57:44,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 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 03:57:44,253 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 697 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1975 mSolverCounterSat, 814 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 697 SdHoareTripleChecker+Valid, 437 SdHoareTripleChecker+Invalid, 2789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 814 IncrementalHoareTripleChecker+Valid, 1975 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:44,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [697 Valid, 437 Invalid, 2789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [814 Valid, 1975 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:57:44,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24069 states. [2024-11-16 03:57:44,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24069 to 22565. [2024-11-16 03:57:44,654 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22565 states, 22564 states have (on average 1.1582166282574011) internal successors, (26134), 22564 states have internal predecessors, (26134), 0 states have call successors, (0), 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 03:57:44,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22565 states to 22565 states and 26134 transitions. [2024-11-16 03:57:44,683 INFO L78 Accepts]: Start accepts. Automaton has 22565 states and 26134 transitions. Word has length 273 [2024-11-16 03:57:44,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:44,683 INFO L471 AbstractCegarLoop]: Abstraction has 22565 states and 26134 transitions. [2024-11-16 03:57:44,684 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.333333333333336) internal successors, (154), 2 states have internal predecessors, (154), 0 states have call successors, (0), 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 03:57:44,684 INFO L276 IsEmpty]: Start isEmpty. Operand 22565 states and 26134 transitions. [2024-11-16 03:57:44,689 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 354 [2024-11-16 03:57:44,690 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:44,691 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-16 03:57:44,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 03:57:44,691 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:44,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:44,692 INFO L85 PathProgramCache]: Analyzing trace with hash -11318202, now seen corresponding path program 1 times [2024-11-16 03:57:44,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:44,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347968440] [2024-11-16 03:57:44,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:44,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:44,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:45,269 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 20 proven. 110 refuted. 0 times theorem prover too weak. 169 trivial. 0 not checked. [2024-11-16 03:57:45,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:45,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347968440] [2024-11-16 03:57:45,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347968440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:57:45,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2026521156] [2024-11-16 03:57:45,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:45,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:57:45,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:57:45,272 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 03:57:45,274 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 03:57:45,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:45,416 INFO L255 TraceCheckSpWp]: Trace formula consists of 481 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:57:45,422 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:57:45,825 INFO L134 CoverageAnalysis]: Checked inductivity of 299 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 279 trivial. 0 not checked. [2024-11-16 03:57:45,826 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:57:45,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2026521156] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:45,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:57:45,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-16 03:57:45,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024915554] [2024-11-16 03:57:45,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:45,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:45,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:45,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:45,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:57:45,827 INFO L87 Difference]: Start difference. First operand 22565 states and 26134 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 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 03:57:48,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:48,251 INFO L93 Difference]: Finished difference Result 54904 states and 63122 transitions. [2024-11-16 03:57:48,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:48,252 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 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 353 [2024-11-16 03:57:48,252 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:48,293 INFO L225 Difference]: With dead ends: 54904 [2024-11-16 03:57:48,294 INFO L226 Difference]: Without dead ends: 32341 [2024-11-16 03:57:48,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 352 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:57:48,318 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 626 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2352 mSolverCounterSat, 363 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 626 SdHoareTripleChecker+Valid, 597 SdHoareTripleChecker+Invalid, 2715 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 363 IncrementalHoareTripleChecker+Valid, 2352 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:48,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [626 Valid, 597 Invalid, 2715 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [363 Valid, 2352 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:57:48,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32341 states. [2024-11-16 03:57:48,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32341 to 29333. [2024-11-16 03:57:48,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29333 states, 29332 states have (on average 1.1408700395472522) internal successors, (33464), 29332 states have internal predecessors, (33464), 0 states have call successors, (0), 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 03:57:49,074 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29333 states to 29333 states and 33464 transitions. [2024-11-16 03:57:49,075 INFO L78 Accepts]: Start accepts. Automaton has 29333 states and 33464 transitions. Word has length 353 [2024-11-16 03:57:49,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:49,076 INFO L471 AbstractCegarLoop]: Abstraction has 29333 states and 33464 transitions. [2024-11-16 03:57:49,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 2 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 03:57:49,077 INFO L276 IsEmpty]: Start isEmpty. Operand 29333 states and 33464 transitions. [2024-11-16 03:57:49,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-16 03:57:49,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:49,083 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-16 03:57:49,101 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-16 03:57:49,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2024-11-16 03:57:49,284 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:49,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:49,285 INFO L85 PathProgramCache]: Analyzing trace with hash 1534664575, now seen corresponding path program 1 times [2024-11-16 03:57:49,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:49,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060175891] [2024-11-16 03:57:49,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:49,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:49,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:50,071 INFO L134 CoverageAnalysis]: Checked inductivity of 311 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 291 trivial. 0 not checked. [2024-11-16 03:57:50,074 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:50,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060175891] [2024-11-16 03:57:50,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060175891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:50,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:50,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:50,075 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021658153] [2024-11-16 03:57:50,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:50,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:50,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:50,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:50,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:50,076 INFO L87 Difference]: Start difference. First operand 29333 states and 33464 transitions. Second operand has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 03:57:52,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:52,511 INFO L93 Difference]: Finished difference Result 66184 states and 75378 transitions. [2024-11-16 03:57:52,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:52,513 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 363 [2024-11-16 03:57:52,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:52,554 INFO L225 Difference]: With dead ends: 66184 [2024-11-16 03:57:52,554 INFO L226 Difference]: Without dead ends: 36853 [2024-11-16 03:57:52,575 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 03:57:52,576 INFO L432 NwaCegarLoop]: 904 mSDtfsCounter, 860 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2137 mSolverCounterSat, 595 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 860 SdHoareTripleChecker+Valid, 914 SdHoareTripleChecker+Invalid, 2732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 595 IncrementalHoareTripleChecker+Valid, 2137 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:52,576 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [860 Valid, 914 Invalid, 2732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [595 Valid, 2137 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-16 03:57:52,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36853 states. [2024-11-16 03:57:53,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36853 to 35349. [2024-11-16 03:57:53,058 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35349 states, 35348 states have (on average 1.1181962204368) internal successors, (39526), 35348 states have internal predecessors, (39526), 0 states have call successors, (0), 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 03:57:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35349 states to 35349 states and 39526 transitions. [2024-11-16 03:57:53,105 INFO L78 Accepts]: Start accepts. Automaton has 35349 states and 39526 transitions. Word has length 363 [2024-11-16 03:57:53,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:53,106 INFO L471 AbstractCegarLoop]: Abstraction has 35349 states and 39526 transitions. [2024-11-16 03:57:53,106 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.0) internal successors, (159), 3 states have internal predecessors, (159), 0 states have call successors, (0), 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 03:57:53,106 INFO L276 IsEmpty]: Start isEmpty. Operand 35349 states and 39526 transitions. [2024-11-16 03:57:53,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-16 03:57:53,111 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:53,111 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-16 03:57:53,111 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 03:57:53,112 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:53,112 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:53,112 INFO L85 PathProgramCache]: Analyzing trace with hash -880627473, now seen corresponding path program 1 times [2024-11-16 03:57:53,112 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:53,112 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490435309] [2024-11-16 03:57:53,113 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:53,113 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:53,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:53,864 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 62 proven. 232 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-16 03:57:53,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:53,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490435309] [2024-11-16 03:57:53,865 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490435309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 03:57:53,865 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [125623477] [2024-11-16 03:57:53,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:53,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:57:53,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 03:57:53,867 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 03:57:53,868 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 03:57:54,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:54,140 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-16 03:57:54,145 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 03:57:54,322 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 252 proven. 0 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-16 03:57:54,323 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-16 03:57:54,323 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [125623477] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:54,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-16 03:57:54,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-16 03:57:54,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088205438] [2024-11-16 03:57:54,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:54,324 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:54,324 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:54,325 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:54,325 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:57:54,325 INFO L87 Difference]: Start difference. First operand 35349 states and 39526 transitions. Second operand has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 03:57:57,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:57:57,244 INFO L93 Difference]: Finished difference Result 93256 states and 105025 transitions. [2024-11-16 03:57:57,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:57:57,245 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 03:57:57,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:57:57,316 INFO L225 Difference]: With dead ends: 93256 [2024-11-16 03:57:57,316 INFO L226 Difference]: Without dead ends: 57909 [2024-11-16 03:57:57,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-16 03:57:57,346 INFO L432 NwaCegarLoop]: 1024 mSDtfsCounter, 664 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2331 mSolverCounterSat, 717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 1032 SdHoareTripleChecker+Invalid, 3048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 717 IncrementalHoareTripleChecker+Valid, 2331 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-16 03:57:57,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 1032 Invalid, 3048 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [717 Valid, 2331 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-16 03:57:57,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57909 states. [2024-11-16 03:57:57,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57909 to 57909. [2024-11-16 03:57:57,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57909 states, 57908 states have (on average 1.1233508323547696) internal successors, (65051), 57908 states have internal predecessors, (65051), 0 states have call successors, (0), 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 03:57:58,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57909 states to 57909 states and 65051 transitions. [2024-11-16 03:57:58,323 INFO L78 Accepts]: Start accepts. Automaton has 57909 states and 65051 transitions. Word has length 392 [2024-11-16 03:57:58,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:57:58,324 INFO L471 AbstractCegarLoop]: Abstraction has 57909 states and 65051 transitions. [2024-11-16 03:57:58,324 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 102.33333333333333) internal successors, (307), 3 states have internal predecessors, (307), 0 states have call successors, (0), 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 03:57:58,328 INFO L276 IsEmpty]: Start isEmpty. Operand 57909 states and 65051 transitions. [2024-11-16 03:57:58,333 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 402 [2024-11-16 03:57:58,335 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:57:58,335 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 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] [2024-11-16 03:57:58,355 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 03:57:58,539 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 03:57:58,540 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:57:58,540 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:57:58,540 INFO L85 PathProgramCache]: Analyzing trace with hash -988589774, now seen corresponding path program 1 times [2024-11-16 03:57:58,541 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:57:58,541 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [478155850] [2024-11-16 03:57:58,541 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:57:58,541 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:57:58,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:57:58,868 INFO L134 CoverageAnalysis]: Checked inductivity of 360 backedges. 261 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-16 03:57:58,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:57:58,868 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [478155850] [2024-11-16 03:57:58,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [478155850] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:57:58,868 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:57:58,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:57:58,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005164722] [2024-11-16 03:57:58,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:57:58,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:57:58,869 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:57:58,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:57:58,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:57:58,870 INFO L87 Difference]: Start difference. First operand 57909 states and 65051 transitions. Second operand has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 03:58:01,530 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:01,530 INFO L93 Difference]: Finished difference Result 120328 states and 134686 transitions. [2024-11-16 03:58:01,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:01,531 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 401 [2024-11-16 03:58:01,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:01,715 INFO L225 Difference]: With dead ends: 120328 [2024-11-16 03:58:01,715 INFO L226 Difference]: Without dead ends: 61669 [2024-11-16 03:58:01,734 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 03:58:01,736 INFO L432 NwaCegarLoop]: 996 mSDtfsCounter, 762 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2084 mSolverCounterSat, 553 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 762 SdHoareTripleChecker+Valid, 1004 SdHoareTripleChecker+Invalid, 2637 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 553 IncrementalHoareTripleChecker+Valid, 2084 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:01,736 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [762 Valid, 1004 Invalid, 2637 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [553 Valid, 2084 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-16 03:58:01,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61669 states. [2024-11-16 03:58:02,217 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61669 to 55653. [2024-11-16 03:58:02,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55653 states, 55652 states have (on average 1.0889276216488177) internal successors, (60601), 55652 states have internal predecessors, (60601), 0 states have call successors, (0), 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 03:58:02,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55653 states to 55653 states and 60601 transitions. [2024-11-16 03:58:02,311 INFO L78 Accepts]: Start accepts. Automaton has 55653 states and 60601 transitions. Word has length 401 [2024-11-16 03:58:02,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:02,312 INFO L471 AbstractCegarLoop]: Abstraction has 55653 states and 60601 transitions. [2024-11-16 03:58:02,312 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.0) internal successors, (303), 3 states have internal predecessors, (303), 0 states have call successors, (0), 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 03:58:02,312 INFO L276 IsEmpty]: Start isEmpty. Operand 55653 states and 60601 transitions. [2024-11-16 03:58:02,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-11-16 03:58:02,321 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:02,322 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:58:02,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 03:58:02,322 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:02,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:02,323 INFO L85 PathProgramCache]: Analyzing trace with hash -940723023, now seen corresponding path program 1 times [2024-11-16 03:58:02,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:02,323 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993923794] [2024-11-16 03:58:02,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:02,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:02,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:02,706 INFO L134 CoverageAnalysis]: Checked inductivity of 676 backedges. 556 proven. 0 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-16 03:58:02,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:02,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993923794] [2024-11-16 03:58:02,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993923794] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:02,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:02,707 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:02,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1023107974] [2024-11-16 03:58:02,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:02,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:02,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:02,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:02,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:02,708 INFO L87 Difference]: Start difference. First operand 55653 states and 60601 transitions. Second operand has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 03:58:05,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:05,363 INFO L93 Difference]: Finished difference Result 132360 states and 144194 transitions. [2024-11-16 03:58:05,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:05,364 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 488 [2024-11-16 03:58:05,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:05,460 INFO L225 Difference]: With dead ends: 132360 [2024-11-16 03:58:05,460 INFO L226 Difference]: Without dead ends: 77461 [2024-11-16 03:58:05,493 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 03:58:05,494 INFO L432 NwaCegarLoop]: 1333 mSDtfsCounter, 657 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2371 mSolverCounterSat, 421 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 1343 SdHoareTripleChecker+Invalid, 2792 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 421 IncrementalHoareTripleChecker+Valid, 2371 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:05,494 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 1343 Invalid, 2792 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [421 Valid, 2371 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:58:05,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77461 states. [2024-11-16 03:58:06,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77461 to 74453. [2024-11-16 03:58:06,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74453 states, 74452 states have (on average 1.0786278407564605) internal successors, (80306), 74452 states have internal predecessors, (80306), 0 states have call successors, (0), 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 03:58:06,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74453 states to 74453 states and 80306 transitions. [2024-11-16 03:58:06,537 INFO L78 Accepts]: Start accepts. Automaton has 74453 states and 80306 transitions. Word has length 488 [2024-11-16 03:58:06,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:06,538 INFO L471 AbstractCegarLoop]: Abstraction has 74453 states and 80306 transitions. [2024-11-16 03:58:06,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 123.33333333333333) internal successors, (370), 3 states have internal predecessors, (370), 0 states have call successors, (0), 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 03:58:06,538 INFO L276 IsEmpty]: Start isEmpty. Operand 74453 states and 80306 transitions. [2024-11-16 03:58:06,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2024-11-16 03:58:06,544 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:06,544 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-16 03:58:06,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 03:58:06,544 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:06,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:06,545 INFO L85 PathProgramCache]: Analyzing trace with hash 173672203, now seen corresponding path program 1 times [2024-11-16 03:58:06,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:06,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228230276] [2024-11-16 03:58:06,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:06,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:06,733 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 27 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2024-11-16 03:58:06,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:06,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228230276] [2024-11-16 03:58:06,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228230276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:06,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:06,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:06,736 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476911776] [2024-11-16 03:58:06,736 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:06,737 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:06,737 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:06,737 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:06,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:06,738 INFO L87 Difference]: Start difference. First operand 74453 states and 80306 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 03:58:09,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:09,438 INFO L93 Difference]: Finished difference Result 149656 states and 161580 transitions. [2024-11-16 03:58:09,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:09,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 511 [2024-11-16 03:58:09,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:09,514 INFO L225 Difference]: With dead ends: 149656 [2024-11-16 03:58:09,514 INFO L226 Difference]: Without dead ends: 75957 [2024-11-16 03:58:09,547 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 03:58:09,548 INFO L432 NwaCegarLoop]: 1111 mSDtfsCounter, 866 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2195 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 866 SdHoareTripleChecker+Valid, 1121 SdHoareTripleChecker+Invalid, 2551 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 2195 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:09,548 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [866 Valid, 1121 Invalid, 2551 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 2195 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:58:09,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75957 states. [2024-11-16 03:58:10,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75957 to 75957. [2024-11-16 03:58:10,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75957 states, 75956 states have (on average 1.0655247775027648) internal successors, (80933), 75956 states have internal predecessors, (80933), 0 states have call successors, (0), 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 03:58:10,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75957 states to 75957 states and 80933 transitions. [2024-11-16 03:58:10,439 INFO L78 Accepts]: Start accepts. Automaton has 75957 states and 80933 transitions. Word has length 511 [2024-11-16 03:58:10,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:10,440 INFO L471 AbstractCegarLoop]: Abstraction has 75957 states and 80933 transitions. [2024-11-16 03:58:10,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 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 03:58:10,440 INFO L276 IsEmpty]: Start isEmpty. Operand 75957 states and 80933 transitions. [2024-11-16 03:58:10,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1016 [2024-11-16 03:58:10,504 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:10,505 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:10,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 03:58:10,505 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:10,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:10,506 INFO L85 PathProgramCache]: Analyzing trace with hash -18784563, now seen corresponding path program 1 times [2024-11-16 03:58:10,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:10,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80793784] [2024-11-16 03:58:10,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:10,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:10,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:11,717 INFO L134 CoverageAnalysis]: Checked inductivity of 743 backedges. 534 proven. 0 refuted. 0 times theorem prover too weak. 209 trivial. 0 not checked. [2024-11-16 03:58:11,717 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:11,717 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80793784] [2024-11-16 03:58:11,717 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80793784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:11,718 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:11,718 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:11,718 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889622007] [2024-11-16 03:58:11,718 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:11,719 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:11,719 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:11,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:11,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:11,721 INFO L87 Difference]: Start difference. First operand 75957 states and 80933 transitions. Second operand has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 0 states have call successors, (0), 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 03:58:14,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:14,565 INFO L93 Difference]: Finished difference Result 183496 states and 196161 transitions. [2024-11-16 03:58:14,565 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:14,565 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 0 states have call successors, (0), 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 1015 [2024-11-16 03:58:14,565 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:14,677 INFO L225 Difference]: With dead ends: 183496 [2024-11-16 03:58:14,677 INFO L226 Difference]: Without dead ends: 108293 [2024-11-16 03:58:14,704 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 03:58:14,704 INFO L432 NwaCegarLoop]: 415 mSDtfsCounter, 742 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2280 mSolverCounterSat, 613 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 742 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 2893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 613 IncrementalHoareTripleChecker+Valid, 2280 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:14,705 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [742 Valid, 424 Invalid, 2893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [613 Valid, 2280 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-16 03:58:14,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 108293 states. [2024-11-16 03:58:15,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 108293 to 106037. [2024-11-16 03:58:15,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106037 states, 106036 states have (on average 1.0596306914632767) internal successors, (112359), 106036 states have internal predecessors, (112359), 0 states have call successors, (0), 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 03:58:16,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106037 states to 106037 states and 112359 transitions. [2024-11-16 03:58:16,043 INFO L78 Accepts]: Start accepts. Automaton has 106037 states and 112359 transitions. Word has length 1015 [2024-11-16 03:58:16,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:16,043 INFO L471 AbstractCegarLoop]: Abstraction has 106037 states and 112359 transitions. [2024-11-16 03:58:16,043 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 0 states have call successors, (0), 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 03:58:16,043 INFO L276 IsEmpty]: Start isEmpty. Operand 106037 states and 112359 transitions. [2024-11-16 03:58:16,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1100 [2024-11-16 03:58:16,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:16,560 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:16,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 03:58:16,560 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:16,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:16,561 INFO L85 PathProgramCache]: Analyzing trace with hash -1417019477, now seen corresponding path program 1 times [2024-11-16 03:58:16,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:16,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992412150] [2024-11-16 03:58:16,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:16,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:16,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:17,539 INFO L134 CoverageAnalysis]: Checked inductivity of 1144 backedges. 534 proven. 0 refuted. 0 times theorem prover too weak. 610 trivial. 0 not checked. [2024-11-16 03:58:17,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:17,540 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992412150] [2024-11-16 03:58:17,540 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992412150] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:17,540 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:17,540 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:17,540 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946738956] [2024-11-16 03:58:17,541 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:17,542 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:17,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:17,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:17,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:17,543 INFO L87 Difference]: Start difference. First operand 106037 states and 112359 transitions. Second operand has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 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 03:58:20,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:20,055 INFO L93 Difference]: Finished difference Result 214328 states and 226988 transitions. [2024-11-16 03:58:20,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:20,055 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 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 1099 [2024-11-16 03:58:20,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:20,163 INFO L225 Difference]: With dead ends: 214328 [2024-11-16 03:58:20,163 INFO L226 Difference]: Without dead ends: 106037 [2024-11-16 03:58:20,199 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 03:58:20,200 INFO L432 NwaCegarLoop]: 1224 mSDtfsCounter, 232 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 2172 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 1232 SdHoareTripleChecker+Invalid, 2470 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 2172 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:20,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 1232 Invalid, 2470 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 2172 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:58:20,261 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106037 states. [2024-11-16 03:58:21,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106037 to 96261. [2024-11-16 03:58:21,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96261 states, 96260 states have (on average 1.048369000623312) internal successors, (100916), 96260 states have internal predecessors, (100916), 0 states have call successors, (0), 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 03:58:21,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96261 states to 96261 states and 100916 transitions. [2024-11-16 03:58:21,442 INFO L78 Accepts]: Start accepts. Automaton has 96261 states and 100916 transitions. Word has length 1099 [2024-11-16 03:58:21,443 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 03:58:21,443 INFO L471 AbstractCegarLoop]: Abstraction has 96261 states and 100916 transitions. [2024-11-16 03:58:21,444 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 254.0) internal successors, (762), 3 states have internal predecessors, (762), 0 states have call successors, (0), 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 03:58:21,444 INFO L276 IsEmpty]: Start isEmpty. Operand 96261 states and 100916 transitions. [2024-11-16 03:58:21,522 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1180 [2024-11-16 03:58:21,522 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 03:58:21,523 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:21,523 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 03:58:21,524 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 03:58:21,524 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 03:58:21,524 INFO L85 PathProgramCache]: Analyzing trace with hash 1553557349, now seen corresponding path program 1 times [2024-11-16 03:58:21,524 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 03:58:21,524 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805611872] [2024-11-16 03:58:21,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 03:58:21,525 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 03:58:22,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 03:58:22,537 INFO L134 CoverageAnalysis]: Checked inductivity of 1355 backedges. 1029 proven. 0 refuted. 0 times theorem prover too weak. 326 trivial. 0 not checked. [2024-11-16 03:58:22,537 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 03:58:22,537 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805611872] [2024-11-16 03:58:22,537 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1805611872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 03:58:22,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 03:58:22,538 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 03:58:22,538 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1417242358] [2024-11-16 03:58:22,538 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 03:58:22,538 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 03:58:22,539 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 03:58:22,539 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 03:58:22,540 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 03:58:22,540 INFO L87 Difference]: Start difference. First operand 96261 states and 100916 transitions. Second operand has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 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 03:58:25,193 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 03:58:25,193 INFO L93 Difference]: Finished difference Result 206056 states and 216565 transitions. [2024-11-16 03:58:25,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 03:58:25,194 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 287.6666666666667) internal successors, (863), 3 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) Word has length 1179 [2024-11-16 03:58:25,194 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 03:58:25,313 INFO L225 Difference]: With dead ends: 206056 [2024-11-16 03:58:25,314 INFO L226 Difference]: Without dead ends: 110549 [2024-11-16 03:58:25,375 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 03:58:25,376 INFO L432 NwaCegarLoop]: 1276 mSDtfsCounter, 646 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 2237 mSolverCounterSat, 307 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 646 SdHoareTripleChecker+Valid, 1286 SdHoareTripleChecker+Invalid, 2544 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 307 IncrementalHoareTripleChecker+Valid, 2237 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-16 03:58:25,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [646 Valid, 1286 Invalid, 2544 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [307 Valid, 2237 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-16 03:58:25,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110549 states.