./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label02.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.6.1.ufo.UNBOUNDED.pals+Problem12_label02.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 dbee9cda36a67f6e027f5c3662c75509e745ea501d7248f54e8e93f6e2072cf5 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-3289d67-m [2024-11-16 09:43:48,394 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-16 09:43:48,467 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-16 09:43:48,471 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-16 09:43:48,472 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-16 09:43:48,515 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-16 09:43:48,515 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-16 09:43:48,516 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-16 09:43:48,516 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-16 09:43:48,518 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-16 09:43:48,518 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-16 09:43:48,518 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-16 09:43:48,519 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-16 09:43:48,519 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-16 09:43:48,521 INFO L153 SettingsManager]: * Use SBE=true [2024-11-16 09:43:48,522 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-16 09:43:48,522 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-16 09:43:48,522 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-16 09:43:48,523 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-16 09:43:48,523 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-16 09:43:48,527 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-16 09:43:48,528 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-16 09:43:48,528 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-16 09:43:48,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-16 09:43:48,528 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-16 09:43:48,528 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-16 09:43:48,529 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-16 09:43:48,529 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-16 09:43:48,529 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-16 09:43:48,529 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-16 09:43:48,530 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-16 09:43:48,530 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-16 09:43:48,530 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:43:48,530 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-16 09:43:48,531 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-16 09:43:48,531 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-16 09:43:48,531 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-16 09:43:48,532 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-16 09:43:48,533 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-16 09:43:48,533 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-16 09:43:48,533 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-16 09:43:48,534 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-16 09:43:48,534 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> dbee9cda36a67f6e027f5c3662c75509e745ea501d7248f54e8e93f6e2072cf5 [2024-11-16 09:43:48,789 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-16 09:43:48,815 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-16 09:43:48,819 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-16 09:43:48,820 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-16 09:43:48,821 INFO L274 PluginConnector]: CDTParser initialized [2024-11-16 09:43:48,822 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-16 09:43:50,249 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-16 09:43:50,723 INFO L384 CDTParser]: Found 1 translation units. [2024-11-16 09:43:50,725 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-16 09:43:50,765 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97a87ff81/e723d844a67f4ecb8dc94b047f6eef71/FLAG7771b9fe0 [2024-11-16 09:43:50,840 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/97a87ff81/e723d844a67f4ecb8dc94b047f6eef71 [2024-11-16 09:43:50,843 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-16 09:43:50,844 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-16 09:43:50,846 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-16 09:43:50,848 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-16 09:43:50,853 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-16 09:43:50,854 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:43:50" (1/1) ... [2024-11-16 09:43:50,855 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@31b71308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:50, skipping insertion in model container [2024-11-16 09:43:50,855 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.11 09:43:50" (1/1) ... [2024-11-16 09:43:50,960 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-16 09:43:51,388 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.6.1.ufo.UNBOUNDED.pals+Problem12_label02.c[15547,15560] [2024-11-16 09:43:51,475 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.6.1.ufo.UNBOUNDED.pals+Problem12_label02.c[22837,22850] [2024-11-16 09:43:52,070 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:43:52,083 INFO L200 MainTranslator]: Completed pre-run [2024-11-16 09:43:52,131 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.6.1.ufo.UNBOUNDED.pals+Problem12_label02.c[15547,15560] [2024-11-16 09:43:52,142 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.6.1.ufo.UNBOUNDED.pals+Problem12_label02.c[22837,22850] [2024-11-16 09:43:52,477 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-16 09:43:52,507 INFO L204 MainTranslator]: Completed translation [2024-11-16 09:43:52,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52 WrapperNode [2024-11-16 09:43:52,508 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-16 09:43:52,509 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-16 09:43:52,509 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-16 09:43:52,509 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-16 09:43:52,516 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:52,576 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:52,940 INFO L138 Inliner]: procedures = 38, calls = 23, calls flagged for inlining = 18, calls inlined = 18, statements flattened = 5156 [2024-11-16 09:43:52,941 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-16 09:43:52,941 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-16 09:43:52,941 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-16 09:43:52,941 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-16 09:43:52,953 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:52,953 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:52,997 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:53,192 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 09:43:53,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:53,193 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:53,304 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:53,321 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:53,343 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:53,359 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:53,406 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-16 09:43:53,408 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-16 09:43:53,408 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-16 09:43:53,408 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-16 09:43:53,409 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (1/1) ... [2024-11-16 09:43:53,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-16 09:43:53,425 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:43:53,441 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 09:43:53,447 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 09:43:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-16 09:43:53,493 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-16 09:43:53,494 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-16 09:43:53,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-16 09:43:53,631 INFO L256 CfgBuilder]: Building ICFG [2024-11-16 09:43:53,634 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-16 09:43:57,843 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L3687: havoc calculate_output2_#t~ret42#1; [2024-11-16 09:43:57,844 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L5177: havoc calculate_output3_#t~ret43#1; [2024-11-16 09:43:57,844 INFO L1250 $ProcedureCfgBuilder]: dead code at ProgramPoint L2208: havoc calculate_output_#t~ret41#1; [2024-11-16 09:43:58,015 INFO L? ?]: Removed 749 outVars from TransFormulas that were not future-live. [2024-11-16 09:43:58,015 INFO L307 CfgBuilder]: Performing block encoding [2024-11-16 09:43:58,054 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-16 09:43:58,054 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-16 09:43:58,055 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:43:58 BoogieIcfgContainer [2024-11-16 09:43:58,055 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-16 09:43:58,057 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-16 09:43:58,057 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-16 09:43:58,060 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-16 09:43:58,061 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.11 09:43:50" (1/3) ... [2024-11-16 09:43:58,061 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba08b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:43:58, skipping insertion in model container [2024-11-16 09:43:58,062 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.11 09:43:52" (2/3) ... [2024-11-16 09:43:58,063 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ba08b11 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.11 09:43:58, skipping insertion in model container [2024-11-16 09:43:58,063 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 16.11 09:43:58" (3/3) ... [2024-11-16 09:43:58,064 INFO L112 eAbstractionObserver]: Analyzing ICFG pals_lcr.6.1.ufo.UNBOUNDED.pals+Problem12_label02.c [2024-11-16 09:43:58,079 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-16 09:43:58,080 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-16 09:43:58,169 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-16 09:43:58,175 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;@2a82d240, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-16 09:43:58,176 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-16 09:43:58,187 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 09:43:58,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:43:58,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:58,197 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 09:43:58,197 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:58,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:58,202 INFO L85 PathProgramCache]: Analyzing trace with hash -806731122, now seen corresponding path program 1 times [2024-11-16 09:43:58,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:58,210 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584661062] [2024-11-16 09:43:58,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:58,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:58,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:58,469 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 09:43:58,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:58,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584661062] [2024-11-16 09:43:58,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584661062] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:58,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:58,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-16 09:43:58,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654182014] [2024-11-16 09:43:58,473 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:58,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-16 09:43:58,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:58,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-16 09:43:58,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-16 09:43:58,504 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 09:43:58,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:58,597 INFO L93 Difference]: Finished difference Result 1796 states and 3398 transitions. [2024-11-16 09:43:58,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-16 09:43:58,604 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 09:43:58,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:58,623 INFO L225 Difference]: With dead ends: 1796 [2024-11-16 09:43:58,623 INFO L226 Difference]: Without dead ends: 855 [2024-11-16 09:43:58,629 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 09:43:58,632 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 09:43:58,633 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 09:43:58,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-16 09:43:58,716 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2024-11-16 09:43:58,719 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 09:43:58,722 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1610 transitions. [2024-11-16 09:43:58,724 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1610 transitions. Word has length 28 [2024-11-16 09:43:58,724 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:58,724 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1610 transitions. [2024-11-16 09:43:58,724 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 09:43:58,725 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1610 transitions. [2024-11-16 09:43:58,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-16 09:43:58,727 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:58,727 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 09:43:58,728 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-16 09:43:58,728 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:58,728 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:58,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1450179885, now seen corresponding path program 1 times [2024-11-16 09:43:58,729 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:58,730 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139116673] [2024-11-16 09:43:58,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:58,730 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:58,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:58,981 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 09:43:58,981 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:58,981 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139116673] [2024-11-16 09:43:58,981 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139116673] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:58,981 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:58,982 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-16 09:43:58,982 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258684756] [2024-11-16 09:43:58,982 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:58,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-16 09:43:58,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:58,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-16 09:43:58,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-16 09:43:58,984 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 09:43:59,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:43:59,099 INFO L93 Difference]: Finished difference Result 912 states and 1697 transitions. [2024-11-16 09:43:59,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-16 09:43:59,100 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 09:43:59,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:43:59,104 INFO L225 Difference]: With dead ends: 912 [2024-11-16 09:43:59,104 INFO L226 Difference]: Without dead ends: 855 [2024-11-16 09:43:59,105 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 09:43:59,106 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 09:43:59,107 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 09:43:59,110 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 855 states. [2024-11-16 09:43:59,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 855 to 855. [2024-11-16 09:43:59,127 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 09:43:59,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 855 states to 855 states and 1570 transitions. [2024-11-16 09:43:59,130 INFO L78 Accepts]: Start accepts. Automaton has 855 states and 1570 transitions. Word has length 28 [2024-11-16 09:43:59,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:43:59,131 INFO L471 AbstractCegarLoop]: Abstraction has 855 states and 1570 transitions. [2024-11-16 09:43:59,132 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 09:43:59,132 INFO L276 IsEmpty]: Start isEmpty. Operand 855 states and 1570 transitions. [2024-11-16 09:43:59,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-11-16 09:43:59,136 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:43:59,136 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] [2024-11-16 09:43:59,136 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-16 09:43:59,136 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:43:59,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:43:59,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1888962013, now seen corresponding path program 1 times [2024-11-16 09:43:59,137 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:43:59,137 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961887672] [2024-11-16 09:43:59,137 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:43:59,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:43:59,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:43:59,414 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 09:43:59,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:43:59,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961887672] [2024-11-16 09:43:59,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [961887672] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:43:59,415 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:43:59,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:43:59,416 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1884976956] [2024-11-16 09:43:59,416 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:43:59,416 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-16 09:43:59,418 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:43:59,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-16 09:43:59,420 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-16 09:43:59,421 INFO L87 Difference]: Start difference. First operand 855 states and 1570 transitions. Second operand has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 09:44:05,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:05,421 INFO L93 Difference]: Finished difference Result 3114 states and 5883 transitions. [2024-11-16 09:44:05,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-16 09:44:05,422 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 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 65 [2024-11-16 09:44:05,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:05,438 INFO L225 Difference]: With dead ends: 3114 [2024-11-16 09:44:05,438 INFO L226 Difference]: Without dead ends: 2359 [2024-11-16 09:44:05,440 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 09:44:05,441 INFO L432 NwaCegarLoop]: 824 mSDtfsCounter, 2453 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 5154 mSolverCounterSat, 1245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 6399 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1245 IncrementalHoareTripleChecker+Valid, 5154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:05,441 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 847 Invalid, 6399 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1245 Valid, 5154 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-16 09:44:05,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2359 states. [2024-11-16 09:44:05,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2359 to 2359. [2024-11-16 09:44:05,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2359 states, 2357 states have (on average 1.5053033517182859) internal successors, (3548), 2358 states have internal predecessors, (3548), 0 states have call successors, (0), 0 states 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 09:44:05,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2359 states to 2359 states and 3548 transitions. [2024-11-16 09:44:05,511 INFO L78 Accepts]: Start accepts. Automaton has 2359 states and 3548 transitions. Word has length 65 [2024-11-16 09:44:05,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:05,512 INFO L471 AbstractCegarLoop]: Abstraction has 2359 states and 3548 transitions. [2024-11-16 09:44:05,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.25) internal successors, (65), 3 states have internal predecessors, (65), 0 states have call successors, (0), 0 states 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 09:44:05,513 INFO L276 IsEmpty]: Start isEmpty. Operand 2359 states and 3548 transitions. [2024-11-16 09:44:05,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-11-16 09:44:05,518 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:05,518 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 09:44:05,519 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-16 09:44:05,519 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:05,519 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:05,520 INFO L85 PathProgramCache]: Analyzing trace with hash 1102156321, now seen corresponding path program 1 times [2024-11-16 09:44:05,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:05,520 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293766594] [2024-11-16 09:44:05,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:05,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:05,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:05,809 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 09:44:05,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:05,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293766594] [2024-11-16 09:44:05,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293766594] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:05,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:05,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:05,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [117783805] [2024-11-16 09:44:05,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:05,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:05,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:05,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:05,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:05,812 INFO L87 Difference]: Start difference. First operand 2359 states and 3548 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 09:44:06,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:06,101 INFO L93 Difference]: Finished difference Result 2995 states and 4544 transitions. [2024-11-16 09:44:06,102 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-16 09:44:06,102 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 09:44:06,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:06,115 INFO L225 Difference]: With dead ends: 2995 [2024-11-16 09:44:06,115 INFO L226 Difference]: Without dead ends: 2942 [2024-11-16 09:44:06,118 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 09:44:06,118 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 09:44:06,122 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 09:44:06,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2942 states. [2024-11-16 09:44:06,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2942 to 2409. [2024-11-16 09:44:06,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 2407 states have (on average 1.5068550062318238) internal successors, (3627), 2408 states have internal predecessors, (3627), 0 states have call successors, (0), 0 states 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 09:44:06,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3627 transitions. [2024-11-16 09:44:06,174 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3627 transitions. Word has length 67 [2024-11-16 09:44:06,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:06,174 INFO L471 AbstractCegarLoop]: Abstraction has 2409 states and 3627 transitions. [2024-11-16 09:44:06,174 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 09:44:06,175 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3627 transitions. [2024-11-16 09:44:06,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-16 09:44:06,176 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:06,176 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 09:44:06,176 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-16 09:44:06,176 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:06,177 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:06,177 INFO L85 PathProgramCache]: Analyzing trace with hash 604662915, now seen corresponding path program 1 times [2024-11-16 09:44:06,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:06,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434994873] [2024-11-16 09:44:06,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:06,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:06,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:06,532 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 09:44:06,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:06,534 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434994873] [2024-11-16 09:44:06,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434994873] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:06,534 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:06,535 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:06,535 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730971263] [2024-11-16 09:44:06,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:06,536 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:06,536 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:06,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:06,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:06,537 INFO L87 Difference]: Start difference. First operand 2409 states and 3627 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 09:44:06,797 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:06,797 INFO L93 Difference]: Finished difference Result 2515 states and 3791 transitions. [2024-11-16 09:44:06,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:06,798 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 09:44:06,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:06,809 INFO L225 Difference]: With dead ends: 2515 [2024-11-16 09:44:06,809 INFO L226 Difference]: Without dead ends: 2412 [2024-11-16 09:44:06,810 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 09:44:06,812 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 09:44:06,812 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 09:44:06,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2412 states. [2024-11-16 09:44:06,846 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2412 to 2409. [2024-11-16 09:44:06,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2409 states, 2407 states have (on average 1.506439551308683) internal successors, (3626), 2408 states have internal predecessors, (3626), 0 states have call successors, (0), 0 states 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 09:44:06,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2409 states to 2409 states and 3626 transitions. [2024-11-16 09:44:06,857 INFO L78 Accepts]: Start accepts. Automaton has 2409 states and 3626 transitions. Word has length 69 [2024-11-16 09:44:06,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:06,858 INFO L471 AbstractCegarLoop]: Abstraction has 2409 states and 3626 transitions. [2024-11-16 09:44:06,858 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 09:44:06,858 INFO L276 IsEmpty]: Start isEmpty. Operand 2409 states and 3626 transitions. [2024-11-16 09:44:06,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-16 09:44:06,859 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:06,860 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 09:44:06,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-16 09:44:06,860 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:06,861 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:06,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1006466910, now seen corresponding path program 1 times [2024-11-16 09:44:06,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:06,862 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552799090] [2024-11-16 09:44:06,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:06,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:06,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:06,971 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 09:44:06,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:06,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552799090] [2024-11-16 09:44:06,972 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552799090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:06,972 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:06,972 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:06,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559592988] [2024-11-16 09:44:06,972 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:06,973 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:06,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:06,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:06,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:06,974 INFO L87 Difference]: Start difference. First operand 2409 states and 3626 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 09:44:07,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:07,020 INFO L93 Difference]: Finished difference Result 2603 states and 3928 transitions. [2024-11-16 09:44:07,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:07,022 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 09:44:07,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:07,031 INFO L225 Difference]: With dead ends: 2603 [2024-11-16 09:44:07,031 INFO L226 Difference]: Without dead ends: 2500 [2024-11-16 09:44:07,032 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 09:44:07,034 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 09:44:07,035 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 09:44:07,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2500 states. [2024-11-16 09:44:07,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2500 to 2495. [2024-11-16 09:44:07,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2495 states, 2493 states have (on average 1.5074207781789009) internal successors, (3758), 2494 states have internal predecessors, (3758), 0 states have call successors, (0), 0 states 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 09:44:07,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2495 states to 2495 states and 3758 transitions. [2024-11-16 09:44:07,083 INFO L78 Accepts]: Start accepts. Automaton has 2495 states and 3758 transitions. Word has length 70 [2024-11-16 09:44:07,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:07,083 INFO L471 AbstractCegarLoop]: Abstraction has 2495 states and 3758 transitions. [2024-11-16 09:44:07,084 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 09:44:07,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2495 states and 3758 transitions. [2024-11-16 09:44:07,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:07,085 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:07,085 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 09:44:07,085 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-16 09:44:07,085 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:07,086 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:07,086 INFO L85 PathProgramCache]: Analyzing trace with hash -694789691, now seen corresponding path program 1 times [2024-11-16 09:44:07,086 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:07,086 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [916441859] [2024-11-16 09:44:07,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:07,086 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:07,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:07,149 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 09:44:07,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:07,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [916441859] [2024-11-16 09:44:07,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [916441859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:07,150 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:07,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:07,150 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1382869027] [2024-11-16 09:44:07,151 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:07,152 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:07,152 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:07,152 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:07,152 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:07,153 INFO L87 Difference]: Start difference. First operand 2495 states and 3758 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 09:44:07,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:07,194 INFO L93 Difference]: Finished difference Result 2857 states and 4316 transitions. [2024-11-16 09:44:07,194 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:07,195 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 09:44:07,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:07,205 INFO L225 Difference]: With dead ends: 2857 [2024-11-16 09:44:07,205 INFO L226 Difference]: Without dead ends: 2668 [2024-11-16 09:44:07,206 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 09:44:07,207 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 09:44:07,207 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 09:44:07,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2668 states. [2024-11-16 09:44:07,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2668 to 2665. [2024-11-16 09:44:07,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2665 states, 2663 states have (on average 1.5084491175366128) internal successors, (4017), 2664 states have internal predecessors, (4017), 0 states have call successors, (0), 0 states 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 09:44:07,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2665 states to 2665 states and 4017 transitions. [2024-11-16 09:44:07,261 INFO L78 Accepts]: Start accepts. Automaton has 2665 states and 4017 transitions. Word has length 71 [2024-11-16 09:44:07,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:07,261 INFO L471 AbstractCegarLoop]: Abstraction has 2665 states and 4017 transitions. [2024-11-16 09:44:07,261 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 09:44:07,262 INFO L276 IsEmpty]: Start isEmpty. Operand 2665 states and 4017 transitions. [2024-11-16 09:44:07,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:07,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:07,263 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 09:44:07,263 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-16 09:44:07,263 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:07,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:07,263 INFO L85 PathProgramCache]: Analyzing trace with hash -1696199419, now seen corresponding path program 1 times [2024-11-16 09:44:07,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:07,264 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1863776952] [2024-11-16 09:44:07,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:07,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:07,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:07,382 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 09:44:07,383 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:07,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1863776952] [2024-11-16 09:44:07,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1863776952] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:07,383 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:07,383 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:07,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [389423426] [2024-11-16 09:44:07,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:07,383 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:07,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:07,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:07,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:07,384 INFO L87 Difference]: Start difference. First operand 2665 states and 4017 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 09:44:07,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:07,424 INFO L93 Difference]: Finished difference Result 3351 states and 5065 transitions. [2024-11-16 09:44:07,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:07,425 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 09:44:07,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:07,434 INFO L225 Difference]: With dead ends: 3351 [2024-11-16 09:44:07,435 INFO L226 Difference]: Without dead ends: 2992 [2024-11-16 09:44:07,436 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 09:44:07,438 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 09:44:07,438 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 09:44:07,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2992 states. [2024-11-16 09:44:07,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2992 to 2989. [2024-11-16 09:44:07,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2989 states, 2987 states have (on average 1.507532641446267) internal successors, (4503), 2988 states have internal predecessors, (4503), 0 states have call successors, (0), 0 states 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 09:44:07,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2989 states to 2989 states and 4503 transitions. [2024-11-16 09:44:07,500 INFO L78 Accepts]: Start accepts. Automaton has 2989 states and 4503 transitions. Word has length 71 [2024-11-16 09:44:07,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:07,500 INFO L471 AbstractCegarLoop]: Abstraction has 2989 states and 4503 transitions. [2024-11-16 09:44:07,501 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 09:44:07,501 INFO L276 IsEmpty]: Start isEmpty. Operand 2989 states and 4503 transitions. [2024-11-16 09:44:07,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:07,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:07,502 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 09:44:07,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-16 09:44:07,502 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:07,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:07,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1710649275, now seen corresponding path program 1 times [2024-11-16 09:44:07,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:07,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095940617] [2024-11-16 09:44:07,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:07,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:07,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:07,565 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 09:44:07,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:07,565 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095940617] [2024-11-16 09:44:07,565 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095940617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:07,565 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:07,566 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:07,566 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [998263028] [2024-11-16 09:44:07,566 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:07,566 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:07,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:07,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:07,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:07,571 INFO L87 Difference]: Start difference. First operand 2989 states and 4503 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 09:44:07,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:07,618 INFO L93 Difference]: Finished difference Result 4291 states and 6467 transitions. [2024-11-16 09:44:07,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:07,618 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 09:44:07,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:07,633 INFO L225 Difference]: With dead ends: 4291 [2024-11-16 09:44:07,633 INFO L226 Difference]: Without dead ends: 3608 [2024-11-16 09:44:07,635 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 09:44:07,636 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 09:44:07,636 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 09:44:07,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3608 states. [2024-11-16 09:44:07,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3608 to 3605. [2024-11-16 09:44:07,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3605 states, 3603 states have (on average 1.50180405217874) internal successors, (5411), 3604 states have internal predecessors, (5411), 0 states have call successors, (0), 0 states 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 09:44:07,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3605 states to 3605 states and 5411 transitions. [2024-11-16 09:44:07,714 INFO L78 Accepts]: Start accepts. Automaton has 3605 states and 5411 transitions. Word has length 71 [2024-11-16 09:44:07,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:07,715 INFO L471 AbstractCegarLoop]: Abstraction has 3605 states and 5411 transitions. [2024-11-16 09:44:07,715 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 09:44:07,715 INFO L276 IsEmpty]: Start isEmpty. Operand 3605 states and 5411 transitions. [2024-11-16 09:44:07,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:07,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:07,716 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 09:44:07,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-16 09:44:07,717 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:07,717 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:07,717 INFO L85 PathProgramCache]: Analyzing trace with hash 380953477, now seen corresponding path program 1 times [2024-11-16 09:44:07,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:07,718 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972876935] [2024-11-16 09:44:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:07,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:07,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:07,773 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 09:44:07,774 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:07,774 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972876935] [2024-11-16 09:44:07,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [972876935] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:07,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:07,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:07,775 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276082081] [2024-11-16 09:44:07,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:07,775 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:07,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:07,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:07,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:07,776 INFO L87 Difference]: Start difference. First operand 3605 states and 5411 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 09:44:07,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:07,846 INFO L93 Difference]: Finished difference Result 6075 states and 9079 transitions. [2024-11-16 09:44:07,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:07,847 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 09:44:07,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:07,874 INFO L225 Difference]: With dead ends: 6075 [2024-11-16 09:44:07,874 INFO L226 Difference]: Without dead ends: 4776 [2024-11-16 09:44:07,878 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 09:44:07,878 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 09:44:07,879 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 09:44:07,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4776 states. [2024-11-16 09:44:07,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4776 to 4773. [2024-11-16 09:44:07,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4773 states, 4771 states have (on average 1.487948019283169) internal successors, (7099), 4772 states have internal predecessors, (7099), 0 states have call successors, (0), 0 states 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 09:44:07,992 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4773 states to 4773 states and 7099 transitions. [2024-11-16 09:44:07,993 INFO L78 Accepts]: Start accepts. Automaton has 4773 states and 7099 transitions. Word has length 71 [2024-11-16 09:44:07,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:07,993 INFO L471 AbstractCegarLoop]: Abstraction has 4773 states and 7099 transitions. [2024-11-16 09:44:07,994 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 09:44:07,994 INFO L276 IsEmpty]: Start isEmpty. Operand 4773 states and 7099 transitions. [2024-11-16 09:44:07,994 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:07,994 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:07,994 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 09:44:07,995 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-16 09:44:07,995 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:07,995 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:07,995 INFO L85 PathProgramCache]: Analyzing trace with hash -143323578, now seen corresponding path program 1 times [2024-11-16 09:44:07,995 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:07,995 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377712043] [2024-11-16 09:44:07,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:07,996 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:08,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:08,243 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 09:44:08,243 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:08,244 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377712043] [2024-11-16 09:44:08,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377712043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:08,244 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:08,244 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:08,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635854123] [2024-11-16 09:44:08,244 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:08,245 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:08,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:08,245 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:08,245 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:08,246 INFO L87 Difference]: Start difference. First operand 4773 states and 7099 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 09:44:08,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:08,440 INFO L93 Difference]: Finished difference Result 4872 states and 7229 transitions. [2024-11-16 09:44:08,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:08,441 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 09:44:08,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:08,455 INFO L225 Difference]: With dead ends: 4872 [2024-11-16 09:44:08,459 INFO L226 Difference]: Without dead ends: 4869 [2024-11-16 09:44:08,461 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 09:44:08,462 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, 0.1s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:08,462 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 10935 Invalid, 51 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-16 09:44:08,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2024-11-16 09:44:08,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4869. [2024-11-16 09:44:08,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4869 states, 4867 states have (on average 1.4750359564413396) internal successors, (7179), 4868 states have internal predecessors, (7179), 0 states have call successors, (0), 0 states 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 09:44:08,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4869 states to 4869 states and 7179 transitions. [2024-11-16 09:44:08,615 INFO L78 Accepts]: Start accepts. Automaton has 4869 states and 7179 transitions. Word has length 71 [2024-11-16 09:44:08,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:08,616 INFO L471 AbstractCegarLoop]: Abstraction has 4869 states and 7179 transitions. [2024-11-16 09:44:08,616 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 09:44:08,617 INFO L276 IsEmpty]: Start isEmpty. Operand 4869 states and 7179 transitions. [2024-11-16 09:44:08,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-16 09:44:08,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:08,618 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 09:44:08,618 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-16 09:44:08,619 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:08,619 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:08,619 INFO L85 PathProgramCache]: Analyzing trace with hash -412715387, now seen corresponding path program 1 times [2024-11-16 09:44:08,619 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:08,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864596364] [2024-11-16 09:44:08,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:08,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:08,691 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 09:44:08,692 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:08,692 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864596364] [2024-11-16 09:44:08,692 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864596364] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:08,692 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:08,693 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:08,693 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1191290927] [2024-11-16 09:44:08,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:08,694 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:08,694 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:08,695 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:08,695 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:08,695 INFO L87 Difference]: Start difference. First operand 4869 states and 7179 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 09:44:08,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:08,832 INFO L93 Difference]: Finished difference Result 9739 states and 14159 transitions. [2024-11-16 09:44:08,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:08,833 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 09:44:08,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:08,848 INFO L225 Difference]: With dead ends: 9739 [2024-11-16 09:44:08,849 INFO L226 Difference]: Without dead ends: 7176 [2024-11-16 09:44:08,856 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 09:44:08,857 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 09:44:08,857 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 09:44:08,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7176 states. [2024-11-16 09:44:09,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7176 to 7173. [2024-11-16 09:44:09,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7173 states, 7171 states have (on average 1.4473574117975179) internal successors, (10379), 7172 states have internal predecessors, (10379), 0 states have call successors, (0), 0 states 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 09:44:09,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7173 states to 7173 states and 10379 transitions. [2024-11-16 09:44:09,035 INFO L78 Accepts]: Start accepts. Automaton has 7173 states and 10379 transitions. Word has length 71 [2024-11-16 09:44:09,035 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:09,035 INFO L471 AbstractCegarLoop]: Abstraction has 7173 states and 10379 transitions. [2024-11-16 09:44:09,035 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 09:44:09,035 INFO L276 IsEmpty]: Start isEmpty. Operand 7173 states and 10379 transitions. [2024-11-16 09:44:09,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-16 09:44:09,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:09,036 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 09:44:09,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-16 09:44:09,036 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:09,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:09,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1728012283, now seen corresponding path program 1 times [2024-11-16 09:44:09,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:09,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408266636] [2024-11-16 09:44:09,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:09,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:09,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:09,097 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 09:44:09,097 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:09,097 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408266636] [2024-11-16 09:44:09,098 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408266636] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:09,098 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:09,098 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:09,098 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2012050326] [2024-11-16 09:44:09,098 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:09,098 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:09,099 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:09,099 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:09,100 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:09,100 INFO L87 Difference]: Start difference. First operand 7173 states and 10379 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 09:44:09,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:09,225 INFO L93 Difference]: Finished difference Result 12303 states and 17748 transitions. [2024-11-16 09:44:09,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:09,226 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 09:44:09,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:09,244 INFO L225 Difference]: With dead ends: 12303 [2024-11-16 09:44:09,244 INFO L226 Difference]: Without dead ends: 9547 [2024-11-16 09:44:09,251 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 09:44:09,252 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 09:44:09,253 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 09:44:09,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9547 states. [2024-11-16 09:44:09,451 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9547 to 9544. [2024-11-16 09:44:09,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9544 states, 9542 states have (on average 1.4334521064766297) internal successors, (13678), 9543 states have internal predecessors, (13678), 0 states have call successors, (0), 0 states 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 09:44:09,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9544 states to 9544 states and 13678 transitions. [2024-11-16 09:44:09,566 INFO L78 Accepts]: Start accepts. Automaton has 9544 states and 13678 transitions. Word has length 73 [2024-11-16 09:44:09,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:09,566 INFO L471 AbstractCegarLoop]: Abstraction has 9544 states and 13678 transitions. [2024-11-16 09:44:09,567 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 09:44:09,567 INFO L276 IsEmpty]: Start isEmpty. Operand 9544 states and 13678 transitions. [2024-11-16 09:44:09,569 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:09,569 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:09,570 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 09:44:09,570 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-16 09:44:09,570 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:09,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:09,571 INFO L85 PathProgramCache]: Analyzing trace with hash 449686707, now seen corresponding path program 1 times [2024-11-16 09:44:09,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:09,571 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704713972] [2024-11-16 09:44:09,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:09,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:09,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:09,760 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 09:44:09,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:09,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704713972] [2024-11-16 09:44:09,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704713972] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:09,761 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:09,761 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:09,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137661502] [2024-11-16 09:44:09,761 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:09,762 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:09,762 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:09,762 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:09,762 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:09,762 INFO L87 Difference]: Start difference. First operand 9544 states and 13678 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 09:44:10,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:10,671 INFO L93 Difference]: Finished difference Result 54493 states and 77020 transitions. [2024-11-16 09:44:10,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:10,672 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 09:44:10,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:10,757 INFO L225 Difference]: With dead ends: 54493 [2024-11-16 09:44:10,758 INFO L226 Difference]: Without dead ends: 47258 [2024-11-16 09:44:10,777 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 09:44:10,778 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 09:44:10,778 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 09:44:10,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47258 states. [2024-11-16 09:44:11,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47258 to 16776. [2024-11-16 09:44:11,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16776 states, 16774 states have (on average 1.4182663646118994) internal successors, (23790), 16775 states have internal predecessors, (23790), 0 states have call successors, (0), 0 states 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 09:44:11,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16776 states to 16776 states and 23790 transitions. [2024-11-16 09:44:11,388 INFO L78 Accepts]: Start accepts. Automaton has 16776 states and 23790 transitions. Word has length 94 [2024-11-16 09:44:11,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:11,389 INFO L471 AbstractCegarLoop]: Abstraction has 16776 states and 23790 transitions. [2024-11-16 09:44:11,389 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 09:44:11,389 INFO L276 IsEmpty]: Start isEmpty. Operand 16776 states and 23790 transitions. [2024-11-16 09:44:11,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:11,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:11,393 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 09:44:11,393 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-16 09:44:11,393 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:11,394 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:11,394 INFO L85 PathProgramCache]: Analyzing trace with hash -551723021, now seen corresponding path program 1 times [2024-11-16 09:44:11,394 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:11,394 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987483469] [2024-11-16 09:44:11,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:11,395 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:11,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:11,645 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 09:44:11,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:11,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987483469] [2024-11-16 09:44:11,646 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [987483469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:11,646 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:11,646 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:11,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793041113] [2024-11-16 09:44:11,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:11,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:11,647 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:11,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:11,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:11,648 INFO L87 Difference]: Start difference. First operand 16776 states and 23790 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 09:44:12,625 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:12,626 INFO L93 Difference]: Finished difference Result 61725 states and 87132 transitions. [2024-11-16 09:44:12,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:12,628 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 09:44:12,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:12,743 INFO L225 Difference]: With dead ends: 61725 [2024-11-16 09:44:12,744 INFO L226 Difference]: Without dead ends: 54490 [2024-11-16 09:44:12,769 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 09:44:12,770 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 09:44:12,770 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 09:44:12,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54490 states. [2024-11-16 09:44:13,739 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54490 to 27656. [2024-11-16 09:44:13,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27656 states, 27654 states have (on average 1.4064511463079483) internal successors, (38894), 27655 states have internal predecessors, (38894), 0 states have call successors, (0), 0 states 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 09:44:13,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27656 states to 27656 states and 38894 transitions. [2024-11-16 09:44:13,818 INFO L78 Accepts]: Start accepts. Automaton has 27656 states and 38894 transitions. Word has length 94 [2024-11-16 09:44:13,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:13,818 INFO L471 AbstractCegarLoop]: Abstraction has 27656 states and 38894 transitions. [2024-11-16 09:44:13,819 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 09:44:13,819 INFO L276 IsEmpty]: Start isEmpty. Operand 27656 states and 38894 transitions. [2024-11-16 09:44:13,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:13,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:13,823 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 09:44:13,823 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-16 09:44:13,823 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:13,824 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:13,824 INFO L85 PathProgramCache]: Analyzing trace with hash -566172877, now seen corresponding path program 1 times [2024-11-16 09:44:13,824 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:13,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078625889] [2024-11-16 09:44:13,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:13,825 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:13,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:14,056 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 09:44:14,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:14,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078625889] [2024-11-16 09:44:14,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078625889] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:14,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:14,057 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:14,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [205894891] [2024-11-16 09:44:14,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:14,058 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:14,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:14,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:14,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:14,059 INFO L87 Difference]: Start difference. First operand 27656 states and 38894 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 09:44:15,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:15,159 INFO L93 Difference]: Finished difference Result 68957 states and 97244 transitions. [2024-11-16 09:44:15,159 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:15,160 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 09:44:15,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:15,305 INFO L225 Difference]: With dead ends: 68957 [2024-11-16 09:44:15,306 INFO L226 Difference]: Without dead ends: 61722 [2024-11-16 09:44:15,339 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 09:44:15,340 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 09:44:15,341 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 09:44:15,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61722 states. [2024-11-16 09:44:16,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61722 to 34888. [2024-11-16 09:44:16,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34888 states, 34886 states have (on average 1.4047468898698618) internal successors, (49006), 34887 states have internal predecessors, (49006), 0 states have call successors, (0), 0 states 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 09:44:16,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34888 states to 34888 states and 49006 transitions. [2024-11-16 09:44:16,432 INFO L78 Accepts]: Start accepts. Automaton has 34888 states and 49006 transitions. Word has length 94 [2024-11-16 09:44:16,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:16,432 INFO L471 AbstractCegarLoop]: Abstraction has 34888 states and 49006 transitions. [2024-11-16 09:44:16,433 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 09:44:16,433 INFO L276 IsEmpty]: Start isEmpty. Operand 34888 states and 49006 transitions. [2024-11-16 09:44:16,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:16,438 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:16,438 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 09:44:16,438 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-16 09:44:16,438 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:16,439 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:16,439 INFO L85 PathProgramCache]: Analyzing trace with hash 1525429875, now seen corresponding path program 1 times [2024-11-16 09:44:16,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:16,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1000410007] [2024-11-16 09:44:16,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:16,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:16,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:16,682 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 09:44:16,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:16,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1000410007] [2024-11-16 09:44:16,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1000410007] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:16,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:16,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:16,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253772619] [2024-11-16 09:44:16,683 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:16,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:16,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:16,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:16,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:16,685 INFO L87 Difference]: Start difference. First operand 34888 states and 49006 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 09:44:18,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:18,069 INFO L93 Difference]: Finished difference Result 76189 states and 107356 transitions. [2024-11-16 09:44:18,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:18,070 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 09:44:18,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:18,162 INFO L225 Difference]: With dead ends: 76189 [2024-11-16 09:44:18,162 INFO L226 Difference]: Without dead ends: 68954 [2024-11-16 09:44:18,188 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 09:44:18,189 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 09:44:18,189 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 09:44:18,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68954 states. [2024-11-16 09:44:19,272 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68954 to 42120. [2024-11-16 09:44:19,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42120 states, 42118 states have (on average 1.4036279025594758) internal successors, (59118), 42119 states have internal predecessors, (59118), 0 states have call successors, (0), 0 states 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 09:44:19,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42120 states to 42120 states and 59118 transitions. [2024-11-16 09:44:19,352 INFO L78 Accepts]: Start accepts. Automaton has 42120 states and 59118 transitions. Word has length 94 [2024-11-16 09:44:19,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:19,352 INFO L471 AbstractCegarLoop]: Abstraction has 42120 states and 59118 transitions. [2024-11-16 09:44:19,352 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 09:44:19,352 INFO L276 IsEmpty]: Start isEmpty. Operand 42120 states and 59118 transitions. [2024-11-16 09:44:19,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2024-11-16 09:44:19,357 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:19,357 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 09:44:19,357 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-16 09:44:19,357 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:19,358 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:19,358 INFO L85 PathProgramCache]: Analyzing trace with hash 731761011, now seen corresponding path program 1 times [2024-11-16 09:44:19,358 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:19,358 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686508057] [2024-11-16 09:44:19,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:19,359 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:19,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:19,536 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 09:44:19,536 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:19,536 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686508057] [2024-11-16 09:44:19,536 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686508057] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:19,537 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:19,537 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:19,537 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395796052] [2024-11-16 09:44:19,537 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:19,537 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:19,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:19,538 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:19,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:19,538 INFO L87 Difference]: Start difference. First operand 42120 states and 59118 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 09:44:21,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:21,285 INFO L93 Difference]: Finished difference Result 83421 states and 117468 transitions. [2024-11-16 09:44:21,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:21,286 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 09:44:21,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:21,382 INFO L225 Difference]: With dead ends: 83421 [2024-11-16 09:44:21,383 INFO L226 Difference]: Without dead ends: 76186 [2024-11-16 09:44:21,410 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 09:44:21,411 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 09:44:21,411 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 09:44:21,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76186 states. [2024-11-16 09:44:22,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76186 to 49352. [2024-11-16 09:44:22,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49352 states, 49350 states have (on average 1.402836879432624) internal successors, (69230), 49351 states have internal predecessors, (69230), 0 states have call successors, (0), 0 states 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 09:44:22,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49352 states to 49352 states and 69230 transitions. [2024-11-16 09:44:22,913 INFO L78 Accepts]: Start accepts. Automaton has 49352 states and 69230 transitions. Word has length 94 [2024-11-16 09:44:22,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:22,914 INFO L471 AbstractCegarLoop]: Abstraction has 49352 states and 69230 transitions. [2024-11-16 09:44:22,914 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 09:44:22,914 INFO L276 IsEmpty]: Start isEmpty. Operand 49352 states and 69230 transitions. [2024-11-16 09:44:22,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:44:22,920 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:22,920 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 09:44:22,920 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-16 09:44:22,920 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:22,920 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:22,921 INFO L85 PathProgramCache]: Analyzing trace with hash 646589077, now seen corresponding path program 1 times [2024-11-16 09:44:22,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:22,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340166063] [2024-11-16 09:44:22,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:22,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:22,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:23,029 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 09:44:23,029 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:23,029 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340166063] [2024-11-16 09:44:23,029 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340166063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:23,029 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:23,030 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:23,030 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1503191464] [2024-11-16 09:44:23,030 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:23,030 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:23,030 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:23,031 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:23,031 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:23,031 INFO L87 Difference]: Start difference. First operand 49352 states and 69230 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 09:44:23,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:23,651 INFO L93 Difference]: Finished difference Result 82662 states and 116267 transitions. [2024-11-16 09:44:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:23,652 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 09:44:23,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:23,701 INFO L225 Difference]: With dead ends: 82662 [2024-11-16 09:44:23,702 INFO L226 Difference]: Without dead ends: 35619 [2024-11-16 09:44:23,748 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 09:44:23,749 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 09:44:23,749 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 09:44:23,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35619 states. [2024-11-16 09:44:24,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35619 to 35616. [2024-11-16 09:44:24,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35616 states, 35614 states have (on average 1.4063570505980794) internal successors, (50086), 35615 states have internal predecessors, (50086), 0 states have call successors, (0), 0 states 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 09:44:25,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35616 states to 35616 states and 50086 transitions. [2024-11-16 09:44:25,016 INFO L78 Accepts]: Start accepts. Automaton has 35616 states and 50086 transitions. Word has length 96 [2024-11-16 09:44:25,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:25,017 INFO L471 AbstractCegarLoop]: Abstraction has 35616 states and 50086 transitions. [2024-11-16 09:44:25,017 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 09:44:25,017 INFO L276 IsEmpty]: Start isEmpty. Operand 35616 states and 50086 transitions. [2024-11-16 09:44:25,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-16 09:44:25,020 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:25,020 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 09:44:25,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-16 09:44:25,020 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:25,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:25,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1397821581, now seen corresponding path program 1 times [2024-11-16 09:44:25,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:25,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1322617558] [2024-11-16 09:44:25,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:25,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:25,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:25,196 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 09:44:25,196 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:25,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1322617558] [2024-11-16 09:44:25,197 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1322617558] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:25,197 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:25,197 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-16 09:44:25,197 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [529054785] [2024-11-16 09:44:25,197 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:25,198 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-16 09:44:25,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:25,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-16 09:44:25,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-16 09:44:25,199 INFO L87 Difference]: Start difference. First operand 35616 states and 50086 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 09:44:26,708 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:26,709 INFO L93 Difference]: Finished difference Result 66357 states and 93492 transitions. [2024-11-16 09:44:26,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-16 09:44:26,709 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 09:44:26,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:26,769 INFO L225 Difference]: With dead ends: 66357 [2024-11-16 09:44:26,769 INFO L226 Difference]: Without dead ends: 61234 [2024-11-16 09:44:26,778 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 09:44:26,780 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 09:44:26,780 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 09:44:26,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61234 states. [2024-11-16 09:44:27,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61234 to 40736. [2024-11-16 09:44:27,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40736 states, 40734 states have (on average 1.405558010507193) internal successors, (57254), 40735 states have internal predecessors, (57254), 0 states have call successors, (0), 0 states 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 09:44:27,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40736 states to 40736 states and 57254 transitions. [2024-11-16 09:44:27,921 INFO L78 Accepts]: Start accepts. Automaton has 40736 states and 57254 transitions. Word has length 96 [2024-11-16 09:44:27,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:27,922 INFO L471 AbstractCegarLoop]: Abstraction has 40736 states and 57254 transitions. [2024-11-16 09:44:27,922 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 09:44:27,922 INFO L276 IsEmpty]: Start isEmpty. Operand 40736 states and 57254 transitions. [2024-11-16 09:44:27,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-11-16 09:44:27,926 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:27,926 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 09:44:27,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-16 09:44:27,927 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:27,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:27,927 INFO L85 PathProgramCache]: Analyzing trace with hash -987382443, now seen corresponding path program 1 times [2024-11-16 09:44:27,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:27,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1619724710] [2024-11-16 09:44:27,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:27,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:27,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:28,030 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 09:44:28,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:28,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1619724710] [2024-11-16 09:44:28,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1619724710] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:28,031 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:28,031 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:28,032 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [168774278] [2024-11-16 09:44:28,032 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:28,032 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:28,032 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:28,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:28,033 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:28,033 INFO L87 Difference]: Start difference. First operand 40736 states and 57254 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 09:44:28,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:28,652 INFO L93 Difference]: Finished difference Result 59942 states and 84138 transitions. [2024-11-16 09:44:28,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:28,652 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 09:44:28,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:28,676 INFO L225 Difference]: With dead ends: 59942 [2024-11-16 09:44:28,677 INFO L226 Difference]: Without dead ends: 21539 [2024-11-16 09:44:28,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:28,702 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 09:44:28,702 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 09:44:28,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21539 states. [2024-11-16 09:44:29,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21539 to 21536. [2024-11-16 09:44:29,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21536 states, 21534 states have (on average 1.399368440605554) internal successors, (30134), 21535 states have internal predecessors, (30134), 0 states have call successors, (0), 0 states 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 09:44:29,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21536 states to 21536 states and 30134 transitions. [2024-11-16 09:44:29,383 INFO L78 Accepts]: Start accepts. Automaton has 21536 states and 30134 transitions. Word has length 98 [2024-11-16 09:44:29,384 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:29,384 INFO L471 AbstractCegarLoop]: Abstraction has 21536 states and 30134 transitions. [2024-11-16 09:44:29,384 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 09:44:29,384 INFO L276 IsEmpty]: Start isEmpty. Operand 21536 states and 30134 transitions. [2024-11-16 09:44:29,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 101 [2024-11-16 09:44:29,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:29,387 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 09:44:29,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-16 09:44:29,388 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:29,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:29,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1359947049, now seen corresponding path program 1 times [2024-11-16 09:44:29,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:29,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215015686] [2024-11-16 09:44:29,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:29,389 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:29,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:29,481 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 09:44:29,481 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:29,482 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215015686] [2024-11-16 09:44:29,482 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215015686] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:29,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:29,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:29,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911648873] [2024-11-16 09:44:29,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:29,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:29,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:29,483 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:29,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:29,483 INFO L87 Difference]: Start difference. First operand 21536 states and 30134 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 09:44:29,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:29,734 INFO L93 Difference]: Finished difference Result 31142 states and 43458 transitions. [2024-11-16 09:44:29,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:29,735 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 09:44:29,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:29,755 INFO L225 Difference]: With dead ends: 31142 [2024-11-16 09:44:29,756 INFO L226 Difference]: Without dead ends: 11939 [2024-11-16 09:44:29,773 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 09:44:29,774 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 09:44:29,774 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 09:44:29,782 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11939 states. [2024-11-16 09:44:30,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11939 to 11936. [2024-11-16 09:44:30,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11936 states, 11934 states have (on average 1.398860398860399) internal successors, (16694), 11935 states have internal predecessors, (16694), 0 states have call successors, (0), 0 states 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 09:44:30,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11936 states to 11936 states and 16694 transitions. [2024-11-16 09:44:30,193 INFO L78 Accepts]: Start accepts. Automaton has 11936 states and 16694 transitions. Word has length 100 [2024-11-16 09:44:30,194 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:30,194 INFO L471 AbstractCegarLoop]: Abstraction has 11936 states and 16694 transitions. [2024-11-16 09:44:30,194 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 09:44:30,194 INFO L276 IsEmpty]: Start isEmpty. Operand 11936 states and 16694 transitions. [2024-11-16 09:44:30,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-11-16 09:44:30,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:30,196 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 09:44:30,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-16 09:44:30,197 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:30,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:30,197 INFO L85 PathProgramCache]: Analyzing trace with hash -975182626, now seen corresponding path program 1 times [2024-11-16 09:44:30,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:30,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233953339] [2024-11-16 09:44:30,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:30,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:30,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:30,288 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 09:44:30,288 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:30,289 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233953339] [2024-11-16 09:44:30,289 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [233953339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:30,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:30,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:30,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1788997437] [2024-11-16 09:44:30,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:30,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:30,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:30,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:30,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:30,290 INFO L87 Difference]: Start difference. First operand 11936 states and 16694 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 09:44:30,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:30,425 INFO L93 Difference]: Finished difference Result 16742 states and 23298 transitions. [2024-11-16 09:44:30,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:30,425 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 09:44:30,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:30,434 INFO L225 Difference]: With dead ends: 16742 [2024-11-16 09:44:30,434 INFO L226 Difference]: Without dead ends: 7139 [2024-11-16 09:44:30,441 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 09:44:30,442 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 09:44:30,442 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 09:44:30,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7139 states. [2024-11-16 09:44:30,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7139 to 7136. [2024-11-16 09:44:30,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7136 states, 7134 states have (on average 1.4065040650406504) internal successors, (10034), 7135 states have internal predecessors, (10034), 0 states have call successors, (0), 0 states 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 09:44:30,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7136 states to 7136 states and 10034 transitions. [2024-11-16 09:44:30,634 INFO L78 Accepts]: Start accepts. Automaton has 7136 states and 10034 transitions. Word has length 102 [2024-11-16 09:44:30,635 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:30,635 INFO L471 AbstractCegarLoop]: Abstraction has 7136 states and 10034 transitions. [2024-11-16 09:44:30,635 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 09:44:30,635 INFO L276 IsEmpty]: Start isEmpty. Operand 7136 states and 10034 transitions. [2024-11-16 09:44:30,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2024-11-16 09:44:30,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:30,637 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 09:44:30,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-16 09:44:30,637 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:30,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:30,638 INFO L85 PathProgramCache]: Analyzing trace with hash 1599975429, now seen corresponding path program 1 times [2024-11-16 09:44:30,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:30,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1818281570] [2024-11-16 09:44:30,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:30,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:30,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:30,751 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 09:44:30,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:30,751 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1818281570] [2024-11-16 09:44:30,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1818281570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:30,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:30,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:30,751 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036028267] [2024-11-16 09:44:30,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:30,752 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:30,752 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:30,752 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:30,752 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:30,753 INFO L87 Difference]: Start difference. First operand 7136 states and 10034 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 09:44:30,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:30,834 INFO L93 Difference]: Finished difference Result 9542 states and 13308 transitions. [2024-11-16 09:44:30,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:30,835 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 09:44:30,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:30,841 INFO L225 Difference]: With dead ends: 9542 [2024-11-16 09:44:30,841 INFO L226 Difference]: Without dead ends: 4739 [2024-11-16 09:44:30,844 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 09:44:30,845 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 09:44:30,846 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 09:44:30,848 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4739 states. [2024-11-16 09:44:30,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4739 to 4736. [2024-11-16 09:44:30,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4736 states, 4734 states have (on average 1.4224757076468104) internal successors, (6734), 4735 states have internal predecessors, (6734), 0 states have call successors, (0), 0 states 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 09:44:30,933 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4736 states to 4736 states and 6734 transitions. [2024-11-16 09:44:30,935 INFO L78 Accepts]: Start accepts. Automaton has 4736 states and 6734 transitions. Word has length 104 [2024-11-16 09:44:30,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:30,935 INFO L471 AbstractCegarLoop]: Abstraction has 4736 states and 6734 transitions. [2024-11-16 09:44:30,935 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 09:44:30,935 INFO L276 IsEmpty]: Start isEmpty. Operand 4736 states and 6734 transitions. [2024-11-16 09:44:30,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-16 09:44:30,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:30,936 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 09:44:30,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-16 09:44:30,937 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:30,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:30,937 INFO L85 PathProgramCache]: Analyzing trace with hash 2124065868, now seen corresponding path program 1 times [2024-11-16 09:44:30,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:30,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1912869365] [2024-11-16 09:44:30,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:30,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:30,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:31,057 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 09:44:31,058 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:31,058 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1912869365] [2024-11-16 09:44:31,058 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1912869365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-16 09:44:31,058 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-16 09:44:31,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-16 09:44:31,059 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157361069] [2024-11-16 09:44:31,059 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-16 09:44:31,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-16 09:44:31,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:31,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-16 09:44:31,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-16 09:44:31,060 INFO L87 Difference]: Start difference. First operand 4736 states and 6734 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 09:44:31,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:31,113 INFO L93 Difference]: Finished difference Result 5942 states and 8358 transitions. [2024-11-16 09:44:31,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-16 09:44:31,114 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 09:44:31,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:31,120 INFO L225 Difference]: With dead ends: 5942 [2024-11-16 09:44:31,120 INFO L226 Difference]: Without dead ends: 3539 [2024-11-16 09:44:31,122 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 09:44:31,123 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 09:44:31,123 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 09:44:31,125 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3539 states. [2024-11-16 09:44:31,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3539 to 3536. [2024-11-16 09:44:31,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3536 states, 3534 states have (on average 1.442840973401245) internal successors, (5099), 3535 states have internal predecessors, (5099), 0 states have call successors, (0), 0 states 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 09:44:31,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3536 states to 3536 states and 5099 transitions. [2024-11-16 09:44:31,184 INFO L78 Accepts]: Start accepts. Automaton has 3536 states and 5099 transitions. Word has length 106 [2024-11-16 09:44:31,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:31,184 INFO L471 AbstractCegarLoop]: Abstraction has 3536 states and 5099 transitions. [2024-11-16 09:44:31,188 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 09:44:31,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3536 states and 5099 transitions. [2024-11-16 09:44:31,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:44:31,189 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:31,189 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 09:44:31,189 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-16 09:44:31,189 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:31,190 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:31,190 INFO L85 PathProgramCache]: Analyzing trace with hash 1444497843, now seen corresponding path program 1 times [2024-11-16 09:44:31,190 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:31,190 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055609960] [2024-11-16 09:44:31,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:31,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:31,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:31,643 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 09:44:31,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:31,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055609960] [2024-11-16 09:44:31,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055609960] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:44:31,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [578807699] [2024-11-16 09:44:31,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:31,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:44:31,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:44:31,646 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 09:44:31,647 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 09:44:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:31,831 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-16 09:44:31,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:44:32,765 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 09:44:32,766 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:44:34,413 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 09:44:34,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [578807699] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:44:34,413 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:44:34,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 12, 13] total 32 [2024-11-16 09:44:34,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190894418] [2024-11-16 09:44:34,414 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:44:34,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-16 09:44:34,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:34,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-16 09:44:34,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=143, Invalid=849, Unknown=0, NotChecked=0, Total=992 [2024-11-16 09:44:34,416 INFO L87 Difference]: Start difference. First operand 3536 states and 5099 transitions. Second operand has 32 states, 32 states have (on average 9.25) internal successors, (296), 32 states have internal predecessors, (296), 0 states have call successors, (0), 0 states 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 09:44:36,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:36,586 INFO L93 Difference]: Finished difference Result 8657 states and 11953 transitions. [2024-11-16 09:44:36,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2024-11-16 09:44:36,586 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 9.25) internal successors, (296), 32 states have internal predecessors, (296), 0 states have call successors, (0), 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 09:44:36,587 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:36,596 INFO L225 Difference]: With dead ends: 8657 [2024-11-16 09:44:36,596 INFO L226 Difference]: Without dead ends: 7454 [2024-11-16 09:44:36,600 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 265 GetRequests, 194 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=990, Invalid=4266, Unknown=0, NotChecked=0, Total=5256 [2024-11-16 09:44:36,600 INFO L432 NwaCegarLoop]: 1519 mSDtfsCounter, 21376 mSDsluCounter, 9767 mSDsCounter, 0 mSdLazyCounter, 1085 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21376 SdHoareTripleChecker+Valid, 11286 SdHoareTripleChecker+Invalid, 1130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1085 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:36,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21376 Valid, 11286 Invalid, 1130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 1085 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:44:36,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7454 states. [2024-11-16 09:44:36,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7454 to 7376. [2024-11-16 09:44:36,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7376 states, 7374 states have (on average 1.3688635747219962) internal successors, (10094), 7375 states have internal predecessors, (10094), 0 states have call successors, (0), 0 states 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 09:44:36,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7376 states to 7376 states and 10094 transitions. [2024-11-16 09:44:36,793 INFO L78 Accepts]: Start accepts. Automaton has 7376 states and 10094 transitions. Word has length 108 [2024-11-16 09:44:36,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:36,793 INFO L471 AbstractCegarLoop]: Abstraction has 7376 states and 10094 transitions. [2024-11-16 09:44:36,793 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 9.25) internal successors, (296), 32 states have internal predecessors, (296), 0 states have call successors, (0), 0 states 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 09:44:36,794 INFO L276 IsEmpty]: Start isEmpty. Operand 7376 states and 10094 transitions. [2024-11-16 09:44:36,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-16 09:44:36,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:36,795 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 09:44:36,813 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 09:44:36,996 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 09:44:36,996 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:36,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:36,997 INFO L85 PathProgramCache]: Analyzing trace with hash -910392077, now seen corresponding path program 1 times [2024-11-16 09:44:36,997 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:36,997 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074569848] [2024-11-16 09:44:36,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:36,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:37,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:37,800 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 09:44:37,800 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:37,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074569848] [2024-11-16 09:44:37,800 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074569848] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:44:37,800 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1052078685] [2024-11-16 09:44:37,800 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:37,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:44:37,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:44:37,802 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 09:44:37,803 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 09:44:37,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:37,949 INFO L255 TraceCheckSpWp]: Trace formula consists of 500 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-16 09:44:37,952 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:44:38,376 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 09:44:38,377 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:44:39,212 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 09:44:39,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1052078685] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:44:39,212 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:44:39,212 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9, 9] total 28 [2024-11-16 09:44:39,212 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068437881] [2024-11-16 09:44:39,212 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:44:39,213 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-16 09:44:39,213 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:39,214 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-16 09:44:39,214 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2024-11-16 09:44:39,214 INFO L87 Difference]: Start difference. First operand 7376 states and 10094 transitions. Second operand has 29 states, 29 states have (on average 9.586206896551724) internal successors, (278), 28 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 09:44:42,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:42,086 INFO L93 Difference]: Finished difference Result 30221 states and 40094 transitions. [2024-11-16 09:44:42,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-16 09:44:42,086 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 9.586206896551724) internal successors, (278), 28 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 09:44:42,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:42,111 INFO L225 Difference]: With dead ends: 30221 [2024-11-16 09:44:42,112 INFO L226 Difference]: Without dead ends: 25178 [2024-11-16 09:44:42,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 271 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1216 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1108, Invalid=4294, Unknown=0, NotChecked=0, Total=5402 [2024-11-16 09:44:42,121 INFO L432 NwaCegarLoop]: 1582 mSDtfsCounter, 21846 mSDsluCounter, 5922 mSDsCounter, 0 mSdLazyCounter, 1481 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21846 SdHoareTripleChecker+Valid, 7504 SdHoareTripleChecker+Invalid, 1511 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 1481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:42,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21846 Valid, 7504 Invalid, 1511 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [30 Valid, 1481 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-16 09:44:42,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25178 states. [2024-11-16 09:44:42,714 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25178 to 24680. [2024-11-16 09:44:42,730 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24680 states, 24678 states have (on average 1.3077234784018155) internal successors, (32272), 24679 states have internal predecessors, (32272), 0 states have call successors, (0), 0 states 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 09:44:42,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24680 states to 24680 states and 32272 transitions. [2024-11-16 09:44:42,759 INFO L78 Accepts]: Start accepts. Automaton has 24680 states and 32272 transitions. Word has length 108 [2024-11-16 09:44:42,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:42,759 INFO L471 AbstractCegarLoop]: Abstraction has 24680 states and 32272 transitions. [2024-11-16 09:44:42,759 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 9.586206896551724) internal successors, (278), 28 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 09:44:42,759 INFO L276 IsEmpty]: Start isEmpty. Operand 24680 states and 32272 transitions. [2024-11-16 09:44:42,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-16 09:44:42,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:42,764 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] [2024-11-16 09:44:42,782 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 09:44:42,965 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 09:44:42,965 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:42,966 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash -1232388178, now seen corresponding path program 1 times [2024-11-16 09:44:42,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:42,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [419471689] [2024-11-16 09:44:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:42,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:43,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:43,401 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 09:44:43,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:43,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [419471689] [2024-11-16 09:44:43,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [419471689] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:44:43,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1871910848] [2024-11-16 09:44:43,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:43,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:44:43,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:44:43,404 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 09:44:43,405 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 09:44:43,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:43,572 INFO L255 TraceCheckSpWp]: Trace formula consists of 504 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:44:43,574 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:44:43,993 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 09:44:43,993 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:44:44,929 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 09:44:44,929 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1871910848] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:44:44,929 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:44:44,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 24 [2024-11-16 09:44:44,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704939207] [2024-11-16 09:44:44,930 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:44:44,930 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-16 09:44:44,930 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:44,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-16 09:44:44,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=513, Unknown=0, NotChecked=0, Total=600 [2024-11-16 09:44:44,931 INFO L87 Difference]: Start difference. First operand 24680 states and 32272 transitions. Second operand has 25 states, 25 states have (on average 12.0) internal successors, (300), 24 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) [2024-11-16 09:44:47,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:47,163 INFO L93 Difference]: Finished difference Result 71373 states and 92682 transitions. [2024-11-16 09:44:47,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2024-11-16 09:44:47,164 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 12.0) internal successors, (300), 24 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) Word has length 110 [2024-11-16 09:44:47,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:47,221 INFO L225 Difference]: With dead ends: 71373 [2024-11-16 09:44:47,221 INFO L226 Difference]: Without dead ends: 49026 [2024-11-16 09:44:47,245 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 568 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=551, Invalid=2205, Unknown=0, NotChecked=0, Total=2756 [2024-11-16 09:44:47,245 INFO L432 NwaCegarLoop]: 1574 mSDtfsCounter, 17323 mSDsluCounter, 7407 mSDsCounter, 0 mSdLazyCounter, 1374 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17323 SdHoareTripleChecker+Valid, 8981 SdHoareTripleChecker+Invalid, 1395 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 1374 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:47,246 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17323 Valid, 8981 Invalid, 1395 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 1374 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-16 09:44:47,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49026 states. [2024-11-16 09:44:48,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49026 to 45536. [2024-11-16 09:44:48,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45536 states, 45534 states have (on average 1.2837440154609743) internal successors, (58454), 45535 states have internal predecessors, (58454), 0 states have call successors, (0), 0 states 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 09:44:48,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45536 states to 45536 states and 58454 transitions. [2024-11-16 09:44:48,695 INFO L78 Accepts]: Start accepts. Automaton has 45536 states and 58454 transitions. Word has length 110 [2024-11-16 09:44:48,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:48,695 INFO L471 AbstractCegarLoop]: Abstraction has 45536 states and 58454 transitions. [2024-11-16 09:44:48,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 12.0) internal successors, (300), 24 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) [2024-11-16 09:44:48,695 INFO L276 IsEmpty]: Start isEmpty. Operand 45536 states and 58454 transitions. [2024-11-16 09:44:48,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-16 09:44:48,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:48,700 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 09:44:48,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-16 09:44:48,901 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 09:44:48,902 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:48,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:48,902 INFO L85 PathProgramCache]: Analyzing trace with hash 2123972718, now seen corresponding path program 1 times [2024-11-16 09:44:48,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:48,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338206835] [2024-11-16 09:44:48,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:48,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:48,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:49,258 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:49,259 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-16 09:44:49,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338206835] [2024-11-16 09:44:49,259 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338206835] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-16 09:44:49,259 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [128999772] [2024-11-16 09:44:49,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:49,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-16 09:44:49,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-16 09:44:49,261 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 09:44:49,263 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 09:44:49,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-16 09:44:49,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 506 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-16 09:44:49,411 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-16 09:44:49,763 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:49,763 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-16 09:44:50,545 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 15 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-16 09:44:50,545 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [128999772] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-16 09:44:50,545 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-16 09:44:50,546 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 21 [2024-11-16 09:44:50,546 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813966080] [2024-11-16 09:44:50,546 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-16 09:44:50,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-16 09:44:50,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-16 09:44:50,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-16 09:44:50,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=372, Unknown=0, NotChecked=0, Total=462 [2024-11-16 09:44:50,547 INFO L87 Difference]: Start difference. First operand 45536 states and 58454 transitions. Second operand has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 0 states have call successors, (0), 0 states 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 09:44:52,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-16 09:44:52,274 INFO L93 Difference]: Finished difference Result 98193 states and 125831 transitions. [2024-11-16 09:44:52,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-16 09:44:52,274 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 0 states have call successors, (0), 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 111 [2024-11-16 09:44:52,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-16 09:44:52,334 INFO L225 Difference]: With dead ends: 98193 [2024-11-16 09:44:52,335 INFO L226 Difference]: Without dead ends: 54990 [2024-11-16 09:44:52,350 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 238 GetRequests, 209 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=230, Invalid=700, Unknown=0, NotChecked=0, Total=930 [2024-11-16 09:44:52,351 INFO L432 NwaCegarLoop]: 1539 mSDtfsCounter, 7761 mSDsluCounter, 5096 mSDsCounter, 0 mSdLazyCounter, 587 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7761 SdHoareTripleChecker+Valid, 6635 SdHoareTripleChecker+Invalid, 595 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 587 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-16 09:44:52,351 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [7761 Valid, 6635 Invalid, 595 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 587 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-16 09:44:52,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54990 states. [2024-11-16 09:44:53,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54990 to 54984. [2024-11-16 09:44:54,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54984 states, 54982 states have (on average 1.2833290895202065) internal successors, (70560), 54983 states have internal predecessors, (70560), 0 states have call successors, (0), 0 states 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 09:44:54,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54984 states to 54984 states and 70560 transitions. [2024-11-16 09:44:54,068 INFO L78 Accepts]: Start accepts. Automaton has 54984 states and 70560 transitions. Word has length 111 [2024-11-16 09:44:54,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-16 09:44:54,068 INFO L471 AbstractCegarLoop]: Abstraction has 54984 states and 70560 transitions. [2024-11-16 09:44:54,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 11.136363636363637) internal successors, (245), 21 states have internal predecessors, (245), 0 states have call successors, (0), 0 states 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 09:44:54,068 INFO L276 IsEmpty]: Start isEmpty. Operand 54984 states and 70560 transitions. [2024-11-16 09:44:54,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-16 09:44:54,073 INFO L207 NwaCegarLoop]: Found error trace [2024-11-16 09:44:54,073 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, 1] [2024-11-16 09:44:54,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-16 09:44:54,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-16 09:44:54,274 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-16 09:44:54,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-16 09:44:54,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1519572535, now seen corresponding path program 1 times [2024-11-16 09:44:54,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-16 09:44:54,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23799041] [2024-11-16 09:44:54,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-16 09:44:54,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-16 09:44:54,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat