./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.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 726c27beb485f609d605f0581621ddf01187954349267fe751f77dd8e4a5e6ab --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:45:03,340 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:45:03,406 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:45:03,410 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:45:03,411 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:45:03,429 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:45:03,430 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:45:03,430 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:45:03,431 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:45:03,431 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:45:03,432 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:45:03,432 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:45:03,432 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:45:03,433 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:45:03,433 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:45:03,433 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:45:03,434 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:45:03,434 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:45:03,434 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:45:03,435 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:45:03,435 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:45:03,436 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:45:03,436 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:45:03,436 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:45:03,437 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:45:03,437 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:45:03,437 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:45:03,437 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:45:03,438 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:45:03,438 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:45:03,438 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:45:03,439 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:45:03,439 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:45:03,439 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:45:03,439 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:45:03,440 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:45:03,440 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:45:03,440 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:45:03,441 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:45:03,441 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:45:03,441 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:45:03,441 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:45:03,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 726c27beb485f609d605f0581621ddf01187954349267fe751f77dd8e4a5e6ab [2024-11-16 09:45:03,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:45:03,707 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:45:03,711 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:45:03,713 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:45:03,714 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:45:03,715 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-16 09:45:05,102 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:45:05,619 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:45:05,621 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-16 09:45:05,656 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48bc945bd/578cb984e31b499c8f2868a26ef3e09a/FLAGb187e2be8 [2024-11-16 09:45:05,691 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/48bc945bd/578cb984e31b499c8f2868a26ef3e09a [2024-11-16 09:45:05,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:45:05,698 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:45:05,699 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:45:05,699 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:45:05,704 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:45:05,705 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:45:05" (1/1) ... [2024-11-16 09:45:05,706 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1b16ef53 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:05, skipping insertion in model container [2024-11-16 09:45:05,706 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:45:05" (1/1) ... [2024-11-16 09:45:05,813 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:45:06,234 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[15510,15523] [2024-11-16 09:45:06,291 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[21065,21078] [2024-11-16 09:45:06,909 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:45:06,921 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:45:06,953 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[15510,15523] [2024-11-16 09:45:06,960 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/combinations/pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c[21065,21078] [2024-11-16 09:45:07,332 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:45:07,363 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:45:07,363 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07 WrapperNode [2024-11-16 09:45:07,363 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:45:07,364 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:45:07,364 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:45:07,365 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:45:07,371 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:07,433 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:07,812 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5155 [2024-11-16 09:45:07,813 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:45:07,814 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:45:07,814 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:45:07,814 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:45:07,824 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:07,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:07,895 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:08,066 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 09:45:08,066 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:08,067 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:08,236 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:08,256 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:08,281 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:08,300 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:08,443 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:45:08,445 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:45:08,446 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:45:08,446 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:45:08,447 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (1/1) ... [2024-11-16 09:45:08,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:45:08,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:08,489 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 09:45:08,491 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 09:45:08,538 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:45:08,538 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:45:08,539 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:45:08,539 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:45:08,632 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:45:08,634 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:45:12,898 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3685: havoc calculate_output2_#t~ret42#1; [2024-11-16 09:45:12,899 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5175: havoc calculate_output3_#t~ret43#1; [2024-11-16 09:45:12,899 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2206: havoc calculate_output_#t~ret41#1; [2024-11-16 09:45:13,078 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-16 09:45:13,078 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:45:13,109 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:45:13,110 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:45:13,110 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:45:13 BoogieIcfgContainer [2024-11-16 09:45:13,111 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:45:13,113 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:45:13,114 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:45:13,117 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:45:13,118 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:45:05" (1/3) ... [2024-11-16 09:45:13,118 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788d2ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:45:13, skipping insertion in model container [2024-11-16 09:45:13,119 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:45:07" (2/3) ... [2024-11-16 09:45:13,119 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@788d2ac7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:45:13, skipping insertion in model container [2024-11-16 09:45:13,120 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:45:13" (3/3) ... [2024-11-16 09:45:13,121 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.ufo.UNBOUNDED.pals+Problem12_label01.c [2024-11-16 09:45:13,141 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:45:13,142 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:45:13,234 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:45:13,241 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;@f0466f2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:45:13,242 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:45:13,252 INFO L276 IsEmpty]: Start isEmpty. Operand has 923 states, 920 states have (on average 1.8967391304347827) internal successors, (1745), 922 states have internal predecessors, (1745), 0 states have call successors, (0), 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 09:45:13,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:45:13,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:13,263 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:13,263 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:13,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:13,270 INFO L85 PathProgramCache]: Analyzing trace with hash -806731122, now seen corresponding path program 1 times [2024-11-16 09:45:13,278 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:13,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [357270758] [2024-11-16 09:45:13,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:13,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:13,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:13,577 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 09:45:13,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:13,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [357270758] [2024-11-16 09:45:13,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [357270758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:13,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:13,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:45:13,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [232721330] [2024-11-16 09:45:13,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:13,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 09:45:13,585 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:13,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 09:45:13,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:45:13,613 INFO L87 Difference]: Start difference. First operand has 923 states, 920 states have (on average 1.8967391304347827) internal successors, (1745), 922 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:13,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:13,704 INFO L93 Difference]: Finished difference Result 1796 states and 3398 transitions. [2024-11-16 09:45:13,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 09:45:13,709 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-16 09:45:13,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:13,736 INFO L225 Difference]: With dead ends: 1796 [2024-11-16 09:45:13,737 INFO L226 Difference]: Without dead ends: 855 [2024-11-16 09:45:13,745 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:45:13,748 INFO L432 NwaCegarLoop]: 1674 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1674 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:13,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1674 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:13,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-16 09:45:13,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2024-11-16 09:45:13,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 853 states have (on average 1.887456037514654) internal successors, (1610), 854 states have internal predecessors, (1610), 0 states have call successors, (0), 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 09:45:13,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1610 transitions. [2024-11-16 09:45:13,820 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1610 transitions. Word has length 28 [2024-11-16 09:45:13,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:13,821 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1610 transitions. [2024-11-16 09:45:13,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.0) internal successors, (28), 2 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:13,824 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1610 transitions. [2024-11-16 09:45:13,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:45:13,826 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:13,826 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:13,826 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:45:13,827 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:13,827 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:13,827 INFO L85 PathProgramCache]: Analyzing trace with hash 1450179885, now seen corresponding path program 1 times [2024-11-16 09:45:13,827 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:13,827 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1860257872] [2024-11-16 09:45:13,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:13,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:13,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:14,098 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 09:45:14,098 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:14,098 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1860257872] [2024-11-16 09:45:14,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1860257872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:14,099 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:14,099 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:45:14,099 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936796867] [2024-11-16 09:45:14,099 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:14,100 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:45:14,100 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:14,101 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:45:14,103 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:45:14,104 INFO L87 Difference]: Start difference. First operand 855 states and 1610 transitions. Second operand has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:14,220 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:14,220 INFO L93 Difference]: Finished difference Result 912 states and 1697 transitions. [2024-11-16 09:45:14,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:45:14,221 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2024-11-16 09:45:14,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:14,225 INFO L225 Difference]: With dead ends: 912 [2024-11-16 09:45:14,225 INFO L226 Difference]: Without dead ends: 855 [2024-11-16 09:45:14,226 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:45:14,227 INFO L432 NwaCegarLoop]: 1608 mSDtfsCounter, 0 mSDsluCounter, 4779 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6387 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:14,227 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6387 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:14,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-16 09:45:14,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2024-11-16 09:45:14,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 855 states, 853 states have (on average 1.8405627198124268) internal successors, (1570), 854 states have internal predecessors, (1570), 0 states have call successors, (0), 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 09:45:14,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1570 transitions. [2024-11-16 09:45:14,263 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1570 transitions. Word has length 28 [2024-11-16 09:45:14,263 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:14,264 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1570 transitions. [2024-11-16 09:45:14,265 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.6) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:14,265 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1570 transitions. [2024-11-16 09:45:14,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-16 09:45:14,268 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:14,268 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:14,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:45:14,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:14,269 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:14,269 INFO L85 PathProgramCache]: Analyzing trace with hash 2000093785, now seen corresponding path program 1 times [2024-11-16 09:45:14,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:14,272 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [173235045] [2024-11-16 09:45:14,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:14,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:14,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:14,520 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 09:45:14,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:14,520 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [173235045] [2024-11-16 09:45:14,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [173235045] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:14,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:14,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:14,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [38394090] [2024-11-16 09:45:14,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:14,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:45:14,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:14,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:45:14,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 09:45:14,523 INFO L87 Difference]: Start difference. First operand 855 states and 1570 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 09:45:20,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:20,669 INFO L93 Difference]: Finished difference Result 3114 states and 5883 transitions. [2024-11-16 09:45:20,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:45:20,670 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 50 [2024-11-16 09:45:20,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:20,679 INFO L225 Difference]: With dead ends: 3114 [2024-11-16 09:45:20,680 INFO L226 Difference]: Without dead ends: 2359 [2024-11-16 09:45:20,681 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:45:20,682 INFO L432 NwaCegarLoop]: 806 mSDtfsCounter, 2477 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5354 mSolverCounterSat, 1153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2477 SdHoareTripleChecker+Valid, 829 SdHoareTripleChecker+Invalid, 6507 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1153 IncrementalHoareTripleChecker+Valid, 5354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:20,683 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2477 Valid, 829 Invalid, 6507 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1153 Valid, 5354 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-16 09:45:20,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2359 states. [2024-11-16 09:45:20,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2359 to 2359. [2024-11-16 09:45:20,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2357 states have (on average 1.5638523546881629) internal successors, (3686), 2358 states have internal predecessors, (3686), 0 states have call successors, (0), 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 09:45:20,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3686 transitions. [2024-11-16 09:45:20,732 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3686 transitions. Word has length 50 [2024-11-16 09:45:20,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:20,733 INFO L471 AbstractCegarLoop]: Abstraction has 2359 states and 3686 transitions. [2024-11-16 09:45:20,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 0 states have call successors, (0), 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 09:45:20,733 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3686 transitions. [2024-11-16 09:45:20,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 09:45:20,735 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:20,735 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:20,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:45:20,736 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:20,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:20,737 INFO L85 PathProgramCache]: Analyzing trace with hash 1102156321, now seen corresponding path program 1 times [2024-11-16 09:45:20,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:20,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1713857846] [2024-11-16 09:45:20,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:20,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:20,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:20,973 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 09:45:20,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:20,974 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1713857846] [2024-11-16 09:45:20,974 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1713857846] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:20,974 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:20,974 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:20,975 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [289602589] [2024-11-16 09:45:20,975 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:20,975 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:20,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:20,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:20,976 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:20,977 INFO L87 Difference]: Start difference. First operand 2359 states and 3686 transitions. Second operand has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 09:45:21,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:21,279 INFO L93 Difference]: Finished difference Result 2995 states and 4682 transitions. [2024-11-16 09:45:21,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:45:21,279 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 67 [2024-11-16 09:45:21,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:21,290 INFO L225 Difference]: With dead ends: 2995 [2024-11-16 09:45:21,291 INFO L226 Difference]: Without dead ends: 2942 [2024-11-16 09:45:21,295 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=181, Unknown=0, NotChecked=0, Total=272 [2024-11-16 09:45:21,297 INFO L432 NwaCegarLoop]: 1564 mSDtfsCounter, 9908 mSDsluCounter, 1586 mSDsCounter, 0 mSdLazyCounter, 154 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9908 SdHoareTripleChecker+Valid, 3150 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:21,298 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9908 Valid, 3150 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 154 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:21,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2024-11-16 09:45:21,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 2409. [2024-11-16 09:45:21,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 2407 states have (on average 1.5641877856252597) internal successors, (3765), 2408 states have internal predecessors, (3765), 0 states have call successors, (0), 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 09:45:21,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3765 transitions. [2024-11-16 09:45:21,354 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3765 transitions. Word has length 67 [2024-11-16 09:45:21,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:21,356 INFO L471 AbstractCegarLoop]: Abstraction has 2409 states and 3765 transitions. [2024-11-16 09:45:21,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.375) internal successors, (67), 8 states have internal predecessors, (67), 0 states have call successors, (0), 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 09:45:21,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3765 transitions. [2024-11-16 09:45:21,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:45:21,358 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:21,358 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:21,362 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:45:21,362 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:21,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:21,363 INFO L85 PathProgramCache]: Analyzing trace with hash 604662915, now seen corresponding path program 1 times [2024-11-16 09:45:21,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:21,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726662306] [2024-11-16 09:45:21,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:21,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:21,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:21,759 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 09:45:21,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:21,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726662306] [2024-11-16 09:45:21,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1726662306] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:21,762 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:21,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:21,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292994025] [2024-11-16 09:45:21,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:21,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:21,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:21,764 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:21,764 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:21,764 INFO L87 Difference]: Start difference. First operand 2409 states and 3765 transitions. Second operand has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:22,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:22,018 INFO L93 Difference]: Finished difference Result 2515 states and 3929 transitions. [2024-11-16 09:45:22,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:22,018 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 69 [2024-11-16 09:45:22,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:22,027 INFO L225 Difference]: With dead ends: 2515 [2024-11-16 09:45:22,028 INFO L226 Difference]: Without dead ends: 2412 [2024-11-16 09:45:22,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-11-16 09:45:22,032 INFO L432 NwaCegarLoop]: 1562 mSDtfsCounter, 6036 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6036 SdHoareTripleChecker+Valid, 1960 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:22,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6036 Valid, 1960 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:22,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2024-11-16 09:45:22,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2409. [2024-11-16 09:45:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 2407 states have (on average 1.5637723307021187) internal successors, (3764), 2408 states have internal predecessors, (3764), 0 states have call successors, (0), 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 09:45:22,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3764 transitions. [2024-11-16 09:45:22,075 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3764 transitions. Word has length 69 [2024-11-16 09:45:22,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:22,076 INFO L471 AbstractCegarLoop]: Abstraction has 2409 states and 3764 transitions. [2024-11-16 09:45:22,076 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.625) internal successors, (69), 8 states have internal predecessors, (69), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:22,076 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3764 transitions. [2024-11-16 09:45:22,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:45:22,077 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:22,077 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:22,077 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:45:22,078 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:22,078 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:22,078 INFO L85 PathProgramCache]: Analyzing trace with hash -1006466910, now seen corresponding path program 1 times [2024-11-16 09:45:22,078 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:22,078 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115212035] [2024-11-16 09:45:22,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:22,079 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:22,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:22,164 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 09:45:22,164 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:22,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115212035] [2024-11-16 09:45:22,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115212035] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:22,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:22,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:22,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1858836074] [2024-11-16 09:45:22,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:22,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:22,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:22,166 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:22,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:22,167 INFO L87 Difference]: Start difference. First operand 2409 states and 3764 transitions. Second operand has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:22,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:22,209 INFO L93 Difference]: Finished difference Result 2603 states and 4066 transitions. [2024-11-16 09:45:22,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:22,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 70 [2024-11-16 09:45:22,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:22,219 INFO L225 Difference]: With dead ends: 2603 [2024-11-16 09:45:22,219 INFO L226 Difference]: Without dead ends: 2500 [2024-11-16 09:45:22,220 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 09:45:22,223 INFO L432 NwaCegarLoop]: 1566 mSDtfsCounter, 1496 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1496 SdHoareTripleChecker+Valid, 1642 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:22,226 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1496 Valid, 1642 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:22,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2024-11-16 09:45:22,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 2495. [2024-11-16 09:45:22,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2493 states have (on average 1.5627757721620537) internal successors, (3896), 2494 states have internal predecessors, (3896), 0 states have call successors, (0), 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 09:45:22,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3896 transitions. [2024-11-16 09:45:22,281 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3896 transitions. Word has length 70 [2024-11-16 09:45:22,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:22,281 INFO L471 AbstractCegarLoop]: Abstraction has 2495 states and 3896 transitions. [2024-11-16 09:45:22,282 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.333333333333332) internal successors, (70), 3 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:22,282 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3896 transitions. [2024-11-16 09:45:22,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:22,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:22,284 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:22,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:45:22,284 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:22,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:22,285 INFO L85 PathProgramCache]: Analyzing trace with hash -694789691, now seen corresponding path program 1 times [2024-11-16 09:45:22,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:22,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169560762] [2024-11-16 09:45:22,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:22,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:22,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:22,370 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 09:45:22,371 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:22,371 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169560762] [2024-11-16 09:45:22,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169560762] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:22,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:22,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:22,372 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251020777] [2024-11-16 09:45:22,372 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:22,372 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:22,372 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:22,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:22,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:22,373 INFO L87 Difference]: Start difference. First operand 2495 states and 3896 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:22,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:22,411 INFO L93 Difference]: Finished difference Result 2857 states and 4454 transitions. [2024-11-16 09:45:22,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:22,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:45:22,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:22,422 INFO L225 Difference]: With dead ends: 2857 [2024-11-16 09:45:22,422 INFO L226 Difference]: Without dead ends: 2668 [2024-11-16 09:45:22,425 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 09:45:22,426 INFO L432 NwaCegarLoop]: 1619 mSDtfsCounter, 1509 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1509 SdHoareTripleChecker+Valid, 1711 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:22,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1509 Valid, 1711 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:22,429 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2024-11-16 09:45:22,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2665. [2024-11-16 09:45:22,475 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2663 states have (on average 1.5602703717611717) internal successors, (4155), 2664 states have internal predecessors, (4155), 0 states have call successors, (0), 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 09:45:22,483 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 4155 transitions. [2024-11-16 09:45:22,483 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 4155 transitions. Word has length 71 [2024-11-16 09:45:22,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:22,484 INFO L471 AbstractCegarLoop]: Abstraction has 2665 states and 4155 transitions. [2024-11-16 09:45:22,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:22,485 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 4155 transitions. [2024-11-16 09:45:22,486 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:22,486 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:22,486 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:22,486 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:45:22,486 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:22,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:22,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1696199419, now seen corresponding path program 1 times [2024-11-16 09:45:22,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:22,487 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1862088098] [2024-11-16 09:45:22,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:22,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:22,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:22,643 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:22,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:22,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1862088098] [2024-11-16 09:45:22,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1862088098] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:22,643 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:22,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:22,644 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579635670] [2024-11-16 09:45:22,644 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:22,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:22,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:22,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:22,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:22,645 INFO L87 Difference]: Start difference. First operand 2665 states and 4155 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:22,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:22,683 INFO L93 Difference]: Finished difference Result 3351 states and 5203 transitions. [2024-11-16 09:45:22,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:22,684 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:45:22,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:22,693 INFO L225 Difference]: With dead ends: 3351 [2024-11-16 09:45:22,694 INFO L226 Difference]: Without dead ends: 2992 [2024-11-16 09:45:22,695 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 09:45:22,696 INFO L432 NwaCegarLoop]: 1617 mSDtfsCounter, 1507 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1507 SdHoareTripleChecker+Valid, 1713 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:22,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1507 Valid, 1713 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:22,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2024-11-16 09:45:22,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2989. [2024-11-16 09:45:22,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2989 states, 2987 states have (on average 1.5537328423167058) internal successors, (4641), 2988 states have internal predecessors, (4641), 0 states have call successors, (0), 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 09:45:22,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 4641 transitions. [2024-11-16 09:45:22,755 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 4641 transitions. Word has length 71 [2024-11-16 09:45:22,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:22,756 INFO L471 AbstractCegarLoop]: Abstraction has 2989 states and 4641 transitions. [2024-11-16 09:45:22,756 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:22,756 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 4641 transitions. [2024-11-16 09:45:22,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:22,759 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:22,760 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:22,760 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:45:22,760 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:22,760 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:22,761 INFO L85 PathProgramCache]: Analyzing trace with hash -1710649275, now seen corresponding path program 1 times [2024-11-16 09:45:22,761 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:22,761 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750765003] [2024-11-16 09:45:22,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:22,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:22,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:22,825 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 09:45:22,825 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:22,826 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750765003] [2024-11-16 09:45:22,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750765003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:22,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:22,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:22,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69546631] [2024-11-16 09:45:22,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:22,827 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:22,830 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:22,831 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:22,831 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:22,831 INFO L87 Difference]: Start difference. First operand 2989 states and 4641 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:22,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:22,879 INFO L93 Difference]: Finished difference Result 4291 states and 6605 transitions. [2024-11-16 09:45:22,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:22,880 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:45:22,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:22,893 INFO L225 Difference]: With dead ends: 4291 [2024-11-16 09:45:22,893 INFO L226 Difference]: Without dead ends: 3608 [2024-11-16 09:45:22,895 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:22,896 INFO L432 NwaCegarLoop]: 1615 mSDtfsCounter, 1505 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1505 SdHoareTripleChecker+Valid, 1715 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:22,897 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1505 Valid, 1715 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:22,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2024-11-16 09:45:22,960 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3605. [2024-11-16 09:45:22,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 3603 states have (on average 1.5401054676658341) internal successors, (5549), 3604 states have internal predecessors, (5549), 0 states have call successors, (0), 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 09:45:22,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 5549 transitions. [2024-11-16 09:45:22,974 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 5549 transitions. Word has length 71 [2024-11-16 09:45:22,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:22,974 INFO L471 AbstractCegarLoop]: Abstraction has 3605 states and 5549 transitions. [2024-11-16 09:45:22,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:22,974 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 5549 transitions. [2024-11-16 09:45:22,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:22,975 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:22,975 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:22,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:45:22,976 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:22,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:22,979 INFO L85 PathProgramCache]: Analyzing trace with hash 380953477, now seen corresponding path program 1 times [2024-11-16 09:45:22,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:22,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134260094] [2024-11-16 09:45:22,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:22,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:22,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:23,042 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 09:45:23,042 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:23,042 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134260094] [2024-11-16 09:45:23,043 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134260094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:23,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:23,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:23,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1819298235] [2024-11-16 09:45:23,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:23,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:23,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:23,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:23,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:23,044 INFO L87 Difference]: Start difference. First operand 3605 states and 5549 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:23,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:23,109 INFO L93 Difference]: Finished difference Result 6075 states and 9217 transitions. [2024-11-16 09:45:23,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:23,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:45:23,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:23,136 INFO L225 Difference]: With dead ends: 6075 [2024-11-16 09:45:23,139 INFO L226 Difference]: Without dead ends: 4776 [2024-11-16 09:45:23,143 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 09:45:23,144 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 1503 mSDsluCounter, 104 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1503 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:23,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1503 Valid, 1717 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:23,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4776 states. [2024-11-16 09:45:23,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4776 to 4773. [2024-11-16 09:45:23,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4773 states, 4771 states have (on average 1.5168727730035632) internal successors, (7237), 4772 states have internal predecessors, (7237), 0 states have call successors, (0), 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 09:45:23,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4773 states to 4773 states and 7237 transitions. [2024-11-16 09:45:23,262 INFO L78 Accepts]: Start accepts. Automaton has 4773 states and 7237 transitions. Word has length 71 [2024-11-16 09:45:23,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:23,263 INFO L471 AbstractCegarLoop]: Abstraction has 4773 states and 7237 transitions. [2024-11-16 09:45:23,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:23,263 INFO L276 IsEmpty]: Start isEmpty. Operand 4773 states and 7237 transitions. [2024-11-16 09:45:23,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:23,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:23,264 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:23,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:45:23,264 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:23,264 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:23,264 INFO L85 PathProgramCache]: Analyzing trace with hash -143323578, now seen corresponding path program 1 times [2024-11-16 09:45:23,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:23,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301063631] [2024-11-16 09:45:23,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:23,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:23,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:23,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:23,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:23,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301063631] [2024-11-16 09:45:23,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301063631] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:23,544 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:23,544 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:23,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1089650725] [2024-11-16 09:45:23,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:23,545 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:23,545 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:23,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:23,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:23,546 INFO L87 Difference]: Start difference. First operand 4773 states and 7237 transitions. Second operand has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:23,649 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:23,650 INFO L93 Difference]: Finished difference Result 4872 states and 7367 transitions. [2024-11-16 09:45:23,650 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:23,650 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:45:23,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:23,661 INFO L225 Difference]: With dead ends: 4872 [2024-11-16 09:45:23,661 INFO L226 Difference]: Without dead ends: 4869 [2024-11-16 09:45:23,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:23,665 INFO L432 NwaCegarLoop]: 1564 mSDtfsCounter, 0 mSDsluCounter, 9371 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 10935 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:23,666 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10935 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:23,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2024-11-16 09:45:23,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4869. [2024-11-16 09:45:23,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 4867 states have (on average 1.5033901787548798) internal successors, (7317), 4868 states have internal predecessors, (7317), 0 states have call successors, (0), 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 09:45:23,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 7317 transitions. [2024-11-16 09:45:23,791 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 7317 transitions. Word has length 71 [2024-11-16 09:45:23,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:23,792 INFO L471 AbstractCegarLoop]: Abstraction has 4869 states and 7317 transitions. [2024-11-16 09:45:23,792 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 8.875) internal successors, (71), 8 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:23,792 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 7317 transitions. [2024-11-16 09:45:23,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:45:23,793 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:23,793 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:23,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:45:23,793 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:23,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:23,794 INFO L85 PathProgramCache]: Analyzing trace with hash -412715387, now seen corresponding path program 1 times [2024-11-16 09:45:23,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:23,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289763436] [2024-11-16 09:45:23,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:23,794 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:23,855 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 09:45:23,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:23,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289763436] [2024-11-16 09:45:23,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289763436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:23,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:23,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:23,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565422669] [2024-11-16 09:45:23,857 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:23,857 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:23,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:23,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:23,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:23,859 INFO L87 Difference]: Start difference. First operand 4869 states and 7317 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:24,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:24,016 INFO L93 Difference]: Finished difference Result 9739 states and 14297 transitions. [2024-11-16 09:45:24,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:24,016 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-16 09:45:24,016 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:24,029 INFO L225 Difference]: With dead ends: 9739 [2024-11-16 09:45:24,030 INFO L226 Difference]: Without dead ends: 7176 [2024-11-16 09:45:24,035 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 09:45:24,035 INFO L432 NwaCegarLoop]: 1629 mSDtfsCounter, 1511 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1511 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:24,036 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1511 Valid, 1717 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:24,043 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2024-11-16 09:45:24,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 7173. [2024-11-16 09:45:24,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7173 states, 7171 states have (on average 1.4666015897364384) internal successors, (10517), 7172 states have internal predecessors, (10517), 0 states have call successors, (0), 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 09:45:24,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7173 states to 7173 states and 10517 transitions. [2024-11-16 09:45:24,213 INFO L78 Accepts]: Start accepts. Automaton has 7173 states and 10517 transitions. Word has length 71 [2024-11-16 09:45:24,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:24,214 INFO L471 AbstractCegarLoop]: Abstraction has 7173 states and 10517 transitions. [2024-11-16 09:45:24,214 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 3 states have internal predecessors, (71), 0 states have call successors, (0), 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 09:45:24,215 INFO L276 IsEmpty]: Start isEmpty. Operand 7173 states and 10517 transitions. [2024-11-16 09:45:24,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:45:24,215 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:24,216 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-16 09:45:24,216 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:45:24,216 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:24,216 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:24,217 INFO L85 PathProgramCache]: Analyzing trace with hash -1728012283, now seen corresponding path program 1 times [2024-11-16 09:45:24,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:24,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [359928758] [2024-11-16 09:45:24,217 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:24,217 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:24,276 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 09:45:24,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:24,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [359928758] [2024-11-16 09:45:24,276 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [359928758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:24,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:24,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:24,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [396061737] [2024-11-16 09:45:24,277 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:24,277 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:24,277 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:24,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:24,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:24,279 INFO L87 Difference]: Start difference. First operand 7173 states and 10517 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 09:45:24,410 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:24,410 INFO L93 Difference]: Finished difference Result 12303 states and 17886 transitions. [2024-11-16 09:45:24,411 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:24,411 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-16 09:45:24,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:24,429 INFO L225 Difference]: With dead ends: 12303 [2024-11-16 09:45:24,429 INFO L226 Difference]: Without dead ends: 9547 [2024-11-16 09:45:24,436 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 09:45:24,437 INFO L432 NwaCegarLoop]: 1634 mSDtfsCounter, 1510 mSDsluCounter, 84 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1510 SdHoareTripleChecker+Valid, 1718 SdHoareTripleChecker+Invalid, 6 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:24,438 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1510 Valid, 1718 Invalid, 6 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:24,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9547 states. [2024-11-16 09:45:24,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9547 to 9544. [2024-11-16 09:45:24,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9544 states, 9542 states have (on average 1.4479144833368267) internal successors, (13816), 9543 states have internal predecessors, (13816), 0 states have call successors, (0), 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 09:45:24,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9544 states to 9544 states and 13816 transitions. [2024-11-16 09:45:24,680 INFO L78 Accepts]: Start accepts. Automaton has 9544 states and 13816 transitions. Word has length 73 [2024-11-16 09:45:24,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:24,680 INFO L471 AbstractCegarLoop]: Abstraction has 9544 states and 13816 transitions. [2024-11-16 09:45:24,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 0 states have call successors, (0), 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 09:45:24,681 INFO L276 IsEmpty]: Start isEmpty. Operand 9544 states and 13816 transitions. [2024-11-16 09:45:24,683 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:24,683 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:24,684 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:24,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:45:24,684 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:24,685 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:24,685 INFO L85 PathProgramCache]: Analyzing trace with hash 449686707, now seen corresponding path program 1 times [2024-11-16 09:45:24,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:24,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621310540] [2024-11-16 09:45:24,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:24,685 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:24,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:24,871 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-16 09:45:24,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:24,872 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621310540] [2024-11-16 09:45:24,872 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621310540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:24,872 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:24,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:24,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450826397] [2024-11-16 09:45:24,872 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:24,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:24,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:24,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:24,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:24,874 INFO L87 Difference]: Start difference. First operand 9544 states and 13816 transitions. Second operand has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 09:45:26,018 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:26,019 INFO L93 Difference]: Finished difference Result 54493 states and 77158 transitions. [2024-11-16 09:45:26,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:26,019 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 94 [2024-11-16 09:45:26,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:26,104 INFO L225 Difference]: With dead ends: 54493 [2024-11-16 09:45:26,104 INFO L226 Difference]: Without dead ends: 47258 [2024-11-16 09:45:26,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:26,134 INFO L432 NwaCegarLoop]: 1652 mSDtfsCounter, 8142 mSDsluCounter, 2285 mSDsCounter, 0 mSdLazyCounter, 147 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8142 SdHoareTripleChecker+Valid, 3937 SdHoareTripleChecker+Invalid, 152 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 147 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:26,134 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8142 Valid, 3937 Invalid, 152 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 147 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:26,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47258 states. [2024-11-16 09:45:26,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47258 to 16776. [2024-11-16 09:45:26,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16776 states, 16774 states have (on average 1.4264933826159532) internal successors, (23928), 16775 states have internal predecessors, (23928), 0 states have call successors, (0), 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 09:45:26,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16776 states to 16776 states and 23928 transitions. [2024-11-16 09:45:26,853 INFO L78 Accepts]: Start accepts. Automaton has 16776 states and 23928 transitions. Word has length 94 [2024-11-16 09:45:26,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:26,854 INFO L471 AbstractCegarLoop]: Abstraction has 16776 states and 23928 transitions. [2024-11-16 09:45:26,854 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.0) internal successors, (88), 8 states have internal predecessors, (88), 0 states have call successors, (0), 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 09:45:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 16776 states and 23928 transitions. [2024-11-16 09:45:26,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:26,858 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:26,858 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:26,858 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:45:26,859 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:26,859 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:26,859 INFO L85 PathProgramCache]: Analyzing trace with hash -551723021, now seen corresponding path program 1 times [2024-11-16 09:45:26,859 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:26,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384154423] [2024-11-16 09:45:26,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:26,860 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:27,064 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2024-11-16 09:45:27,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:27,065 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384154423] [2024-11-16 09:45:27,065 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [384154423] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:27,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:27,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:27,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2136657205] [2024-11-16 09:45:27,066 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:27,066 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:27,066 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:27,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:27,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:27,067 INFO L87 Difference]: Start difference. First operand 16776 states and 23928 transitions. Second operand has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:27,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:27,919 INFO L93 Difference]: Finished difference Result 61725 states and 87270 transitions. [2024-11-16 09:45:27,920 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:27,920 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:45:27,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:28,032 INFO L225 Difference]: With dead ends: 61725 [2024-11-16 09:45:28,033 INFO L226 Difference]: Without dead ends: 54490 [2024-11-16 09:45:28,066 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:28,067 INFO L432 NwaCegarLoop]: 1648 mSDtfsCounter, 8198 mSDsluCounter, 2181 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8198 SdHoareTripleChecker+Valid, 3829 SdHoareTripleChecker+Invalid, 122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:28,067 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8198 Valid, 3829 Invalid, 122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:28,106 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54490 states. [2024-11-16 09:45:28,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54490 to 27656. [2024-11-16 09:45:28,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27656 states, 27654 states have (on average 1.4114413828017647) internal successors, (39032), 27655 states have internal predecessors, (39032), 0 states have call successors, (0), 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 09:45:28,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27656 states to 27656 states and 39032 transitions. [2024-11-16 09:45:28,974 INFO L78 Accepts]: Start accepts. Automaton has 27656 states and 39032 transitions. Word has length 94 [2024-11-16 09:45:28,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:28,974 INFO L471 AbstractCegarLoop]: Abstraction has 27656 states and 39032 transitions. [2024-11-16 09:45:28,975 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.75) internal successors, (86), 8 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:28,975 INFO L276 IsEmpty]: Start isEmpty. Operand 27656 states and 39032 transitions. [2024-11-16 09:45:28,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:28,981 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:28,981 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:28,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:45:28,982 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:28,982 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:28,982 INFO L85 PathProgramCache]: Analyzing trace with hash -566172877, now seen corresponding path program 1 times [2024-11-16 09:45:28,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:28,986 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230757918] [2024-11-16 09:45:28,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:28,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:29,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:29,172 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-16 09:45:29,172 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:29,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230757918] [2024-11-16 09:45:29,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230757918] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:29,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:29,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:29,174 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528465574] [2024-11-16 09:45:29,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:29,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:29,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:29,176 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:29,176 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:29,176 INFO L87 Difference]: Start difference. First operand 27656 states and 39032 transitions. Second operand has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 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 09:45:30,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:30,585 INFO L93 Difference]: Finished difference Result 68957 states and 97382 transitions. [2024-11-16 09:45:30,585 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:30,586 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 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 94 [2024-11-16 09:45:30,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:30,681 INFO L225 Difference]: With dead ends: 68957 [2024-11-16 09:45:30,681 INFO L226 Difference]: Without dead ends: 61722 [2024-11-16 09:45:30,706 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:30,707 INFO L432 NwaCegarLoop]: 1644 mSDtfsCounter, 8250 mSDsluCounter, 2190 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8250 SdHoareTripleChecker+Valid, 3834 SdHoareTripleChecker+Invalid, 124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:30,707 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8250 Valid, 3834 Invalid, 124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:30,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61722 states. [2024-11-16 09:45:31,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61722 to 34888. [2024-11-16 09:45:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34888 states, 34886 states have (on average 1.40870263142808) internal successors, (49144), 34887 states have internal predecessors, (49144), 0 states have call successors, (0), 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 09:45:31,869 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34888 states to 34888 states and 49144 transitions. [2024-11-16 09:45:31,873 INFO L78 Accepts]: Start accepts. Automaton has 34888 states and 49144 transitions. Word has length 94 [2024-11-16 09:45:31,874 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:31,874 INFO L471 AbstractCegarLoop]: Abstraction has 34888 states and 49144 transitions. [2024-11-16 09:45:31,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.5) internal successors, (84), 8 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 09:45:31,874 INFO L276 IsEmpty]: Start isEmpty. Operand 34888 states and 49144 transitions. [2024-11-16 09:45:31,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:31,878 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:31,879 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:31,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:45:31,879 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:31,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:31,880 INFO L85 PathProgramCache]: Analyzing trace with hash 1525429875, now seen corresponding path program 1 times [2024-11-16 09:45:31,880 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:31,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603194706] [2024-11-16 09:45:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:31,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:32,272 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2024-11-16 09:45:32,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:32,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603194706] [2024-11-16 09:45:32,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603194706] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:32,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:32,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:32,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507871623] [2024-11-16 09:45:32,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:32,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:32,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:32,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:32,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:32,274 INFO L87 Difference]: Start difference. First operand 34888 states and 49144 transitions. Second operand has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:33,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:33,395 INFO L93 Difference]: Finished difference Result 76189 states and 107494 transitions. [2024-11-16 09:45:33,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:33,395 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2024-11-16 09:45:33,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:33,491 INFO L225 Difference]: With dead ends: 76189 [2024-11-16 09:45:33,491 INFO L226 Difference]: Without dead ends: 68954 [2024-11-16 09:45:33,517 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:33,518 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 8147 mSDsluCounter, 2282 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8147 SdHoareTripleChecker+Valid, 3935 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:33,518 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8147 Valid, 3935 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:33,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68954 states. [2024-11-16 09:45:34,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68954 to 42120. [2024-11-16 09:45:34,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42120 states, 42118 states have (on average 1.406904411415547) internal successors, (59256), 42119 states have internal predecessors, (59256), 0 states have call successors, (0), 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 09:45:35,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42120 states to 42120 states and 59256 transitions. [2024-11-16 09:45:35,048 INFO L78 Accepts]: Start accepts. Automaton has 42120 states and 59256 transitions. Word has length 94 [2024-11-16 09:45:35,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:35,048 INFO L471 AbstractCegarLoop]: Abstraction has 42120 states and 59256 transitions. [2024-11-16 09:45:35,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 10.25) internal successors, (82), 8 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-16 09:45:35,048 INFO L276 IsEmpty]: Start isEmpty. Operand 42120 states and 59256 transitions. [2024-11-16 09:45:35,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:45:35,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:35,053 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:35,053 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:45:35,053 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:35,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:35,053 INFO L85 PathProgramCache]: Analyzing trace with hash 731761011, now seen corresponding path program 1 times [2024-11-16 09:45:35,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:35,054 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441397318] [2024-11-16 09:45:35,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:35,054 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:35,230 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-16 09:45:35,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:35,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441397318] [2024-11-16 09:45:35,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441397318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:35,231 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:35,232 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:35,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545874000] [2024-11-16 09:45:35,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:35,232 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:35,232 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:35,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:35,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:35,233 INFO L87 Difference]: Start difference. First operand 42120 states and 59256 transitions. Second operand has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 09:45:37,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:37,169 INFO L93 Difference]: Finished difference Result 83421 states and 117606 transitions. [2024-11-16 09:45:37,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:37,169 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 94 [2024-11-16 09:45:37,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:37,258 INFO L225 Difference]: With dead ends: 83421 [2024-11-16 09:45:37,258 INFO L226 Difference]: Without dead ends: 76186 [2024-11-16 09:45:37,275 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:37,276 INFO L432 NwaCegarLoop]: 1653 mSDtfsCounter, 8078 mSDsluCounter, 2467 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8078 SdHoareTripleChecker+Valid, 4120 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:37,276 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8078 Valid, 4120 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:37,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76186 states. [2024-11-16 09:45:38,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76186 to 49352. [2024-11-16 09:45:38,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49352 states, 49350 states have (on average 1.4056332320162108) internal successors, (69368), 49351 states have internal predecessors, (69368), 0 states have call successors, (0), 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 09:45:38,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49352 states to 49352 states and 69368 transitions. [2024-11-16 09:45:38,569 INFO L78 Accepts]: Start accepts. Automaton has 49352 states and 69368 transitions. Word has length 94 [2024-11-16 09:45:38,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:38,569 INFO L471 AbstractCegarLoop]: Abstraction has 49352 states and 69368 transitions. [2024-11-16 09:45:38,569 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.25) internal successors, (90), 8 states have internal predecessors, (90), 0 states have call successors, (0), 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 09:45:38,569 INFO L276 IsEmpty]: Start isEmpty. Operand 49352 states and 69368 transitions. [2024-11-16 09:45:38,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:45:38,576 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:38,576 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:38,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:45:38,576 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:38,577 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:38,577 INFO L85 PathProgramCache]: Analyzing trace with hash 646589077, now seen corresponding path program 1 times [2024-11-16 09:45:38,577 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:38,577 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1296972283] [2024-11-16 09:45:38,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:38,578 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:38,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:38,680 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:38,681 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:38,681 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1296972283] [2024-11-16 09:45:38,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1296972283] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:38,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:38,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:38,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387380516] [2024-11-16 09:45:38,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:38,682 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:38,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:38,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:38,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:38,682 INFO L87 Difference]: Start difference. First operand 49352 states and 69368 transitions. Second operand has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 09:45:39,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:39,550 INFO L93 Difference]: Finished difference Result 82662 states and 116405 transitions. [2024-11-16 09:45:39,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:39,550 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 96 [2024-11-16 09:45:39,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:39,595 INFO L225 Difference]: With dead ends: 82662 [2024-11-16 09:45:39,595 INFO L226 Difference]: Without dead ends: 35619 [2024-11-16 09:45:39,614 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 09:45:39,615 INFO L432 NwaCegarLoop]: 1620 mSDtfsCounter, 59 mSDsluCounter, 1555 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 3175 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:39,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 3175 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:39,629 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35619 states. [2024-11-16 09:45:40,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35619 to 35616. [2024-11-16 09:45:40,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35616 states, 35614 states have (on average 1.4102319312629865) internal successors, (50224), 35615 states have internal predecessors, (50224), 0 states have call successors, (0), 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 09:45:40,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35616 states to 35616 states and 50224 transitions. [2024-11-16 09:45:40,596 INFO L78 Accepts]: Start accepts. Automaton has 35616 states and 50224 transitions. Word has length 96 [2024-11-16 09:45:40,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:40,597 INFO L471 AbstractCegarLoop]: Abstraction has 35616 states and 50224 transitions. [2024-11-16 09:45:40,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.0) internal successors, (96), 3 states have internal predecessors, (96), 0 states have call successors, (0), 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 09:45:40,597 INFO L276 IsEmpty]: Start isEmpty. Operand 35616 states and 50224 transitions. [2024-11-16 09:45:40,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:45:40,599 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:40,600 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:40,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:45:40,600 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:40,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:40,600 INFO L85 PathProgramCache]: Analyzing trace with hash -1397821581, now seen corresponding path program 1 times [2024-11-16 09:45:40,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:40,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855188806] [2024-11-16 09:45:40,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:40,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:40,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:40,782 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2024-11-16 09:45:40,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:40,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855188806] [2024-11-16 09:45:40,783 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855188806] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:40,783 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:40,783 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:45:40,784 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411365577] [2024-11-16 09:45:40,784 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:40,784 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:45:40,785 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:40,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:45:40,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:45:40,785 INFO L87 Difference]: Start difference. First operand 35616 states and 50224 transitions. Second operand has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 09:45:42,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:42,069 INFO L93 Difference]: Finished difference Result 66357 states and 93630 transitions. [2024-11-16 09:45:42,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:45:42,069 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 96 [2024-11-16 09:45:42,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:42,134 INFO L225 Difference]: With dead ends: 66357 [2024-11-16 09:45:42,134 INFO L226 Difference]: Without dead ends: 61234 [2024-11-16 09:45:42,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=54, Invalid=102, Unknown=0, NotChecked=0, Total=156 [2024-11-16 09:45:42,151 INFO L432 NwaCegarLoop]: 1641 mSDtfsCounter, 8102 mSDsluCounter, 2410 mSDsCounter, 0 mSdLazyCounter, 160 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8102 SdHoareTripleChecker+Valid, 4051 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 160 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:42,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8102 Valid, 4051 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 160 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-16 09:45:42,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61234 states. [2024-11-16 09:45:43,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61234 to 40736. [2024-11-16 09:45:43,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40736 states, 40734 states have (on average 1.4089458437668778) internal successors, (57392), 40735 states have internal predecessors, (57392), 0 states have call successors, (0), 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 09:45:43,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40736 states to 40736 states and 57392 transitions. [2024-11-16 09:45:43,532 INFO L78 Accepts]: Start accepts. Automaton has 40736 states and 57392 transitions. Word has length 96 [2024-11-16 09:45:43,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:43,533 INFO L471 AbstractCegarLoop]: Abstraction has 40736 states and 57392 transitions. [2024-11-16 09:45:43,533 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 11.75) internal successors, (94), 8 states have internal predecessors, (94), 0 states have call successors, (0), 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 09:45:43,533 INFO L276 IsEmpty]: Start isEmpty. Operand 40736 states and 57392 transitions. [2024-11-16 09:45:43,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 09:45:43,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:43,538 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:43,538 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:45:43,538 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:43,538 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:43,539 INFO L85 PathProgramCache]: Analyzing trace with hash -987382443, now seen corresponding path program 1 times [2024-11-16 09:45:43,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:43,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604368399] [2024-11-16 09:45:43,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:43,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:43,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:43,652 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:43,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:43,652 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604368399] [2024-11-16 09:45:43,652 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604368399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:43,653 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:43,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:43,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003679954] [2024-11-16 09:45:43,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:43,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:43,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:43,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:43,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:43,654 INFO L87 Difference]: Start difference. First operand 40736 states and 57392 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 09:45:44,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:44,226 INFO L93 Difference]: Finished difference Result 59942 states and 84276 transitions. [2024-11-16 09:45:44,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:44,227 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 98 [2024-11-16 09:45:44,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:44,249 INFO L225 Difference]: With dead ends: 59942 [2024-11-16 09:45:44,249 INFO L226 Difference]: Without dead ends: 21539 [2024-11-16 09:45:44,271 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 09:45:44,271 INFO L432 NwaCegarLoop]: 1613 mSDtfsCounter, 52 mSDsluCounter, 1547 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 3160 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:44,271 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 3160 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:44,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21539 states. [2024-11-16 09:45:44,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21539 to 21536. [2024-11-16 09:45:44,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21536 states, 21534 states have (on average 1.40577691093155) internal successors, (30272), 21535 states have internal predecessors, (30272), 0 states have call successors, (0), 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 09:45:44,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21536 states to 21536 states and 30272 transitions. [2024-11-16 09:45:44,829 INFO L78 Accepts]: Start accepts. Automaton has 21536 states and 30272 transitions. Word has length 98 [2024-11-16 09:45:44,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:44,830 INFO L471 AbstractCegarLoop]: Abstraction has 21536 states and 30272 transitions. [2024-11-16 09:45:44,830 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 0 states have call successors, (0), 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 09:45:44,830 INFO L276 IsEmpty]: Start isEmpty. Operand 21536 states and 30272 transitions. [2024-11-16 09:45:44,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 09:45:44,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:44,832 INFO L215 NwaCegarLoop]: trace histogram [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 09:45:44,833 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:45:44,833 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:44,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:44,833 INFO L85 PathProgramCache]: Analyzing trace with hash -1359947049, now seen corresponding path program 1 times [2024-11-16 09:45:44,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:44,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325737956] [2024-11-16 09:45:44,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:44,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:44,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:44,927 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:44,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:44,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325737956] [2024-11-16 09:45:44,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325737956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:44,928 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:44,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:44,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916313435] [2024-11-16 09:45:44,928 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:44,929 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:44,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:44,929 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:44,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:44,930 INFO L87 Difference]: Start difference. First operand 21536 states and 30272 transitions. Second operand has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 09:45:45,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:45,124 INFO L93 Difference]: Finished difference Result 31142 states and 43596 transitions. [2024-11-16 09:45:45,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:45,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 100 [2024-11-16 09:45:45,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:45,140 INFO L225 Difference]: With dead ends: 31142 [2024-11-16 09:45:45,141 INFO L226 Difference]: Without dead ends: 11939 [2024-11-16 09:45:45,152 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 09:45:45,153 INFO L432 NwaCegarLoop]: 1606 mSDtfsCounter, 47 mSDsluCounter, 1539 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 3145 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:45,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 3145 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:45,160 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11939 states. [2024-11-16 09:45:45,526 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11939 to 11936. [2024-11-16 09:45:45,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11936 states, 11934 states have (on average 1.4104239986592928) internal successors, (16832), 11935 states have internal predecessors, (16832), 0 states have call successors, (0), 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 09:45:45,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11936 states to 11936 states and 16832 transitions. [2024-11-16 09:45:45,550 INFO L78 Accepts]: Start accepts. Automaton has 11936 states and 16832 transitions. Word has length 100 [2024-11-16 09:45:45,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:45,550 INFO L471 AbstractCegarLoop]: Abstraction has 11936 states and 16832 transitions. [2024-11-16 09:45:45,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 33.333333333333336) internal successors, (100), 3 states have internal predecessors, (100), 0 states have call successors, (0), 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 09:45:45,551 INFO L276 IsEmpty]: Start isEmpty. Operand 11936 states and 16832 transitions. [2024-11-16 09:45:45,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 09:45:45,553 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:45,553 INFO L215 NwaCegarLoop]: trace histogram [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 09:45:45,553 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:45:45,553 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:45,554 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:45,554 INFO L85 PathProgramCache]: Analyzing trace with hash -975182626, now seen corresponding path program 1 times [2024-11-16 09:45:45,554 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:45,554 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798684450] [2024-11-16 09:45:45,554 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:45,554 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:45,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:45,676 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:45,676 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:45,676 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798684450] [2024-11-16 09:45:45,677 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [798684450] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:45,677 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:45,677 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:45,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707269601] [2024-11-16 09:45:45,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:45,679 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:45,679 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:45,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:45,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:45,680 INFO L87 Difference]: Start difference. First operand 11936 states and 16832 transitions. Second operand has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 09:45:45,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:45,837 INFO L93 Difference]: Finished difference Result 16742 states and 23436 transitions. [2024-11-16 09:45:45,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:45,838 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 102 [2024-11-16 09:45:45,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:45,846 INFO L225 Difference]: With dead ends: 16742 [2024-11-16 09:45:45,846 INFO L226 Difference]: Without dead ends: 7139 [2024-11-16 09:45:45,852 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 09:45:45,853 INFO L432 NwaCegarLoop]: 1599 mSDtfsCounter, 44 mSDsluCounter, 1531 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 3130 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:45,853 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 3130 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:45,857 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7139 states. [2024-11-16 09:45:46,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7139 to 7136. [2024-11-16 09:45:46,030 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7136 states, 7134 states have (on average 1.4258480515839642) internal successors, (10172), 7135 states have internal predecessors, (10172), 0 states have call successors, (0), 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 09:45:46,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7136 states to 7136 states and 10172 transitions. [2024-11-16 09:45:46,042 INFO L78 Accepts]: Start accepts. Automaton has 7136 states and 10172 transitions. Word has length 102 [2024-11-16 09:45:46,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:46,042 INFO L471 AbstractCegarLoop]: Abstraction has 7136 states and 10172 transitions. [2024-11-16 09:45:46,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.0) internal successors, (102), 3 states have internal predecessors, (102), 0 states have call successors, (0), 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 09:45:46,043 INFO L276 IsEmpty]: Start isEmpty. Operand 7136 states and 10172 transitions. [2024-11-16 09:45:46,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 09:45:46,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:46,045 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:46,045 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:45:46,045 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:46,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:46,046 INFO L85 PathProgramCache]: Analyzing trace with hash 1599975429, now seen corresponding path program 1 times [2024-11-16 09:45:46,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:46,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1122060008] [2024-11-16 09:45:46,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:46,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:46,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:46,197 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:46,197 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1122060008] [2024-11-16 09:45:46,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1122060008] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:46,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:46,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:46,198 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1832167881] [2024-11-16 09:45:46,198 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:46,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:46,199 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:46,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:46,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:46,200 INFO L87 Difference]: Start difference. First operand 7136 states and 10172 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 09:45:46,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:46,301 INFO L93 Difference]: Finished difference Result 9542 states and 13446 transitions. [2024-11-16 09:45:46,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:46,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 104 [2024-11-16 09:45:46,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:46,308 INFO L225 Difference]: With dead ends: 9542 [2024-11-16 09:45:46,308 INFO L226 Difference]: Without dead ends: 4739 [2024-11-16 09:45:46,311 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 09:45:46,311 INFO L432 NwaCegarLoop]: 1592 mSDtfsCounter, 41 mSDsluCounter, 1523 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 3115 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:46,312 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 3115 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:46,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4739 states. [2024-11-16 09:45:46,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4739 to 4736. [2024-11-16 09:45:46,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4736 states, 4734 states have (on average 1.4516265314744403) internal successors, (6872), 4735 states have internal predecessors, (6872), 0 states have call successors, (0), 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 09:45:46,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4736 states to 4736 states and 6872 transitions. [2024-11-16 09:45:46,417 INFO L78 Accepts]: Start accepts. Automaton has 4736 states and 6872 transitions. Word has length 104 [2024-11-16 09:45:46,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:46,417 INFO L471 AbstractCegarLoop]: Abstraction has 4736 states and 6872 transitions. [2024-11-16 09:45:46,418 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 0 states have call successors, (0), 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 09:45:46,418 INFO L276 IsEmpty]: Start isEmpty. Operand 4736 states and 6872 transitions. [2024-11-16 09:45:46,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:45:46,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:46,419 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:46,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:45:46,419 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:46,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:46,420 INFO L85 PathProgramCache]: Analyzing trace with hash 2124065868, now seen corresponding path program 1 times [2024-11-16 09:45:46,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:46,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233806790] [2024-11-16 09:45:46,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:46,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:46,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:46,580 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:46,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:46,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233806790] [2024-11-16 09:45:46,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233806790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:45:46,581 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:45:46,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:45:46,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [257001446] [2024-11-16 09:45:46,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:45:46,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:45:46,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:46,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:45:46,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:45:46,583 INFO L87 Difference]: Start difference. First operand 4736 states and 6872 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 09:45:46,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:46,625 INFO L93 Difference]: Finished difference Result 5942 states and 8496 transitions. [2024-11-16 09:45:46,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:45:46,626 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-16 09:45:46,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:46,631 INFO L225 Difference]: With dead ends: 5942 [2024-11-16 09:45:46,632 INFO L226 Difference]: Without dead ends: 3539 [2024-11-16 09:45:46,633 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 09:45:46,633 INFO L432 NwaCegarLoop]: 1585 mSDtfsCounter, 38 mSDsluCounter, 1515 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 3100 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:46,634 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 3100 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:45:46,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2024-11-16 09:45:46,674 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3536. [2024-11-16 09:45:46,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 3534 states have (on average 1.481890209394454) internal successors, (5237), 3535 states have internal predecessors, (5237), 0 states have call successors, (0), 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 09:45:46,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5237 transitions. [2024-11-16 09:45:46,681 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5237 transitions. Word has length 106 [2024-11-16 09:45:46,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:46,681 INFO L471 AbstractCegarLoop]: Abstraction has 3536 states and 5237 transitions. [2024-11-16 09:45:46,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 0 states have call successors, (0), 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 09:45:46,681 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5237 transitions. [2024-11-16 09:45:46,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:45:46,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:46,683 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:46,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:45:46,683 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:46,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:46,684 INFO L85 PathProgramCache]: Analyzing trace with hash 1444497843, now seen corresponding path program 1 times [2024-11-16 09:45:46,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:46,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090037850] [2024-11-16 09:45:46,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:46,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:46,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:47,083 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:47,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:47,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090037850] [2024-11-16 09:45:47,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090037850] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:47,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2113289035] [2024-11-16 09:45:47,084 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:47,084 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:47,084 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:47,086 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 09:45:47,087 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 09:45:47,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:47,250 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-16 09:45:47,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:48,961 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 13 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:48,962 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:45:51,757 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:51,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2113289035] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:45:51,758 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:45:51,758 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 17, 17] total 38 [2024-11-16 09:45:51,758 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4670334] [2024-11-16 09:45:51,758 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:45:51,759 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2024-11-16 09:45:51,759 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:51,760 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2024-11-16 09:45:51,760 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=245, Invalid=1161, Unknown=0, NotChecked=0, Total=1406 [2024-11-16 09:45:51,761 INFO L87 Difference]: Start difference. First operand 3536 states and 5237 transitions. Second operand has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 0 states have call successors, (0), 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 09:45:54,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:54,333 INFO L93 Difference]: Finished difference Result 9604 states and 13335 transitions. [2024-11-16 09:45:54,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-16 09:45:54,333 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 0 states have call successors, (0), 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 108 [2024-11-16 09:45:54,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:54,341 INFO L225 Difference]: With dead ends: 9604 [2024-11-16 09:45:54,341 INFO L226 Difference]: Without dead ends: 8401 [2024-11-16 09:45:54,343 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 188 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1880 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=1495, Invalid=4985, Unknown=0, NotChecked=0, Total=6480 [2024-11-16 09:45:54,344 INFO L432 NwaCegarLoop]: 1560 mSDtfsCounter, 15635 mSDsluCounter, 13053 mSDsCounter, 0 mSdLazyCounter, 1314 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15635 SdHoareTripleChecker+Valid, 14613 SdHoareTripleChecker+Invalid, 1372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 1314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:54,344 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15635 Valid, 14613 Invalid, 1372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 1314 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:45:54,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8401 states. [2024-11-16 09:45:54,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8401 to 5914. [2024-11-16 09:45:54,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5914 states, 5912 states have (on average 1.408998646820027) internal successors, (8330), 5913 states have internal predecessors, (8330), 0 states have call successors, (0), 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 09:45:54,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5914 states to 5914 states and 8330 transitions. [2024-11-16 09:45:54,457 INFO L78 Accepts]: Start accepts. Automaton has 5914 states and 8330 transitions. Word has length 108 [2024-11-16 09:45:54,458 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:54,458 INFO L471 AbstractCegarLoop]: Abstraction has 5914 states and 8330 transitions. [2024-11-16 09:45:54,458 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 7.315789473684211) internal successors, (278), 38 states have internal predecessors, (278), 0 states have call successors, (0), 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 09:45:54,458 INFO L276 IsEmpty]: Start isEmpty. Operand 5914 states and 8330 transitions. [2024-11-16 09:45:54,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 09:45:54,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:54,460 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:54,486 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 09:45:54,660 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-16 09:45:54,661 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:54,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:54,662 INFO L85 PathProgramCache]: Analyzing trace with hash 725327129, now seen corresponding path program 1 times [2024-11-16 09:45:54,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:54,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842876454] [2024-11-16 09:45:54,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:54,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:54,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:55,040 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:55,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:55,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842876454] [2024-11-16 09:45:55,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842876454] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:55,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1095625997] [2024-11-16 09:45:55,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:55,042 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:55,042 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:55,043 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 09:45:55,045 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 09:45:55,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:55,190 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-16 09:45:55,193 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:55,825 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:55,825 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:45:56,913 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 9 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:56,913 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1095625997] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:45:56,913 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:45:56,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 30 [2024-11-16 09:45:56,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768371468] [2024-11-16 09:45:56,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:45:56,914 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-16 09:45:56,914 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:45:56,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-16 09:45:56,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=706, Unknown=0, NotChecked=0, Total=870 [2024-11-16 09:45:56,916 INFO L87 Difference]: Start difference. First operand 5914 states and 8330 transitions. Second operand has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 0 states have call successors, (0), 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 09:45:57,790 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:45:57,790 INFO L93 Difference]: Finished difference Result 13337 states and 18119 transitions. [2024-11-16 09:45:57,791 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-16 09:45:57,791 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 0 states have call successors, (0), 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 109 [2024-11-16 09:45:57,791 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:45:57,804 INFO L225 Difference]: With dead ends: 13337 [2024-11-16 09:45:57,804 INFO L226 Difference]: Without dead ends: 9756 [2024-11-16 09:45:57,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 241 GetRequests, 198 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 433 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=468, Invalid=1512, Unknown=0, NotChecked=0, Total=1980 [2024-11-16 09:45:57,810 INFO L432 NwaCegarLoop]: 1548 mSDtfsCounter, 9683 mSDsluCounter, 5280 mSDsCounter, 0 mSdLazyCounter, 752 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9683 SdHoareTripleChecker+Valid, 6828 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 752 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-16 09:45:57,810 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [9683 Valid, 6828 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 752 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-16 09:45:57,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9756 states. [2024-11-16 09:45:58,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9756 to 9664. [2024-11-16 09:45:58,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9664 states, 9662 states have (on average 1.361726350652039) internal successors, (13157), 9663 states have internal predecessors, (13157), 0 states have call successors, (0), 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 09:45:58,048 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9664 states to 9664 states and 13157 transitions. [2024-11-16 09:45:58,051 INFO L78 Accepts]: Start accepts. Automaton has 9664 states and 13157 transitions. Word has length 109 [2024-11-16 09:45:58,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:45:58,052 INFO L471 AbstractCegarLoop]: Abstraction has 9664 states and 13157 transitions. [2024-11-16 09:45:58,052 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 9.7) internal successors, (291), 30 states have internal predecessors, (291), 0 states have call successors, (0), 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 09:45:58,052 INFO L276 IsEmpty]: Start isEmpty. Operand 9664 states and 13157 transitions. [2024-11-16 09:45:58,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-16 09:45:58,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:45:58,055 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:45:58,071 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-16 09:45:58,259 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,SelfDestructingSolverStorable26 [2024-11-16 09:45:58,260 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:45:58,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:45:58,260 INFO L85 PathProgramCache]: Analyzing trace with hash 87373779, now seen corresponding path program 1 times [2024-11-16 09:45:58,260 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:45:58,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527560303] [2024-11-16 09:45:58,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:58,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:45:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:59,008 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:59,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:45:59,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527560303] [2024-11-16 09:45:59,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527560303] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:45:59,009 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010201505] [2024-11-16 09:45:59,009 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:45:59,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:45:59,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:45:59,010 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 09:45:59,011 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 09:45:59,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:45:59,146 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:45:59,149 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:45:59,628 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:45:59,629 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:00,470 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 7 proven. 11 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:00,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010201505] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:00,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:00,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-16 09:46:00,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856160443] [2024-11-16 09:46:00,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:00,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-16 09:46:00,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:00,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-16 09:46:00,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=108, Invalid=704, Unknown=0, NotChecked=0, Total=812 [2024-11-16 09:46:00,472 INFO L87 Difference]: Start difference. First operand 9664 states and 13157 transitions. Second operand has 29 states, 29 states have (on average 10.586206896551724) internal successors, (307), 28 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 09:46:02,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:46:02,764 INFO L93 Difference]: Finished difference Result 38439 states and 51054 transitions. [2024-11-16 09:46:02,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-11-16 09:46:02,765 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 10.586206896551724) internal successors, (307), 28 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 109 [2024-11-16 09:46:02,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:46:02,796 INFO L225 Difference]: With dead ends: 38439 [2024-11-16 09:46:02,796 INFO L226 Difference]: Without dead ends: 31108 [2024-11-16 09:46:02,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 60 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 793 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=751, Invalid=3031, Unknown=0, NotChecked=0, Total=3782 [2024-11-16 09:46:02,808 INFO L432 NwaCegarLoop]: 1543 mSDtfsCounter, 23947 mSDsluCounter, 8423 mSDsCounter, 0 mSdLazyCounter, 1138 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23947 SdHoareTripleChecker+Valid, 9966 SdHoareTripleChecker+Invalid, 1173 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 1138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:46:02,808 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23947 Valid, 9966 Invalid, 1173 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 1138 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:46:02,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31108 states. [2024-11-16 09:46:03,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31108 to 30924. [2024-11-16 09:46:03,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30924 states, 30922 states have (on average 1.3121078843541816) internal successors, (40573), 30923 states have internal predecessors, (40573), 0 states have call successors, (0), 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 09:46:03,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30924 states to 30924 states and 40573 transitions. [2024-11-16 09:46:03,608 INFO L78 Accepts]: Start accepts. Automaton has 30924 states and 40573 transitions. Word has length 109 [2024-11-16 09:46:03,608 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:46:03,608 INFO L471 AbstractCegarLoop]: Abstraction has 30924 states and 40573 transitions. [2024-11-16 09:46:03,608 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 10.586206896551724) internal successors, (307), 28 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 09:46:03,609 INFO L276 IsEmpty]: Start isEmpty. Operand 30924 states and 40573 transitions. [2024-11-16 09:46:03,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 09:46:03,611 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:46:03,611 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-16 09:46:03,624 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-16 09:46:03,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:03,812 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:46:03,813 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:46:03,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1385757684, now seen corresponding path program 1 times [2024-11-16 09:46:03,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:46:03,813 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1941135874] [2024-11-16 09:46:03,813 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:03,813 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:46:03,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:04,316 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:04,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:46:04,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1941135874] [2024-11-16 09:46:04,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1941135874] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:46:04,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194175291] [2024-11-16 09:46:04,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:46:04,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:46:04,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:46:04,320 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-16 09:46:04,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-16 09:46:04,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:46:04,488 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-11-16 09:46:04,491 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:46:06,032 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:06,032 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:46:07,916 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:46:07,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194175291] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:46:07,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:46:07,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 18, 15] total 39 [2024-11-16 09:46:07,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [835783142] [2024-11-16 09:46:07,917 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:46:07,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-16 09:46:07,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:46:07,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-16 09:46:07,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1330, Unknown=0, NotChecked=0, Total=1482 [2024-11-16 09:46:07,919 INFO L87 Difference]: Start difference. First operand 30924 states and 40573 transitions. Second operand has 39 states, 39 states have (on average 7.6923076923076925) internal successors, (300), 39 states have internal predecessors, (300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)