./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-66.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 803cd42f Calling Ultimate with: /root/.sdkman/candidates/java/current/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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-66.i -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 12bb580d008789dc82bd22e84ab6c6fa66b09798075ab5a16232b78d93de6996 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-803cd42-m [2024-11-22 07:15:12,582 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-22 07:15:12,638 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-22 07:15:12,643 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-22 07:15:12,643 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-22 07:15:12,672 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-22 07:15:12,673 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-22 07:15:12,673 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-22 07:15:12,674 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-22 07:15:12,674 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-22 07:15:12,674 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-22 07:15:12,675 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-22 07:15:12,675 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-22 07:15:12,678 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-22 07:15:12,679 INFO L153 SettingsManager]: * Use SBE=true [2024-11-22 07:15:12,679 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-22 07:15:12,679 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-22 07:15:12,679 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-22 07:15:12,680 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-22 07:15:12,680 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-22 07:15:12,680 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-22 07:15:12,680 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-22 07:15:12,681 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-22 07:15:12,681 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-22 07:15:12,681 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-22 07:15:12,682 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-22 07:15:12,682 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-22 07:15:12,682 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-22 07:15:12,682 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-22 07:15:12,683 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-22 07:15:12,683 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-22 07:15:12,683 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-22 07:15:12,683 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:15:12,683 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-22 07:15:12,684 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-22 07:15:12,684 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-22 07:15:12,684 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-22 07:15:12,685 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-22 07:15:12,685 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-22 07:15:12,685 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-22 07:15:12,686 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-22 07:15:12,686 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-22 07:15:12,686 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 12bb580d008789dc82bd22e84ab6c6fa66b09798075ab5a16232b78d93de6996 [2024-11-22 07:15:12,902 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-22 07:15:12,920 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-22 07:15:12,923 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-22 07:15:12,923 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-22 07:15:12,924 INFO L274 PluginConnector]: CDTParser initialized [2024-11-22 07:15:12,925 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-66.i [2024-11-22 07:15:14,228 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-22 07:15:14,392 INFO L384 CDTParser]: Found 1 translation units. [2024-11-22 07:15:14,393 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-66.i [2024-11-22 07:15:14,405 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/487c6453e/9782eb54ca094adc8a4b25e32d6c0044/FLAGaf834668e [2024-11-22 07:15:14,443 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/487c6453e/9782eb54ca094adc8a4b25e32d6c0044 [2024-11-22 07:15:14,446 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-22 07:15:14,448 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-22 07:15:14,450 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-22 07:15:14,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-22 07:15:14,457 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-22 07:15:14,458 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,458 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64568929 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14, skipping insertion in model container [2024-11-22 07:15:14,458 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,491 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-22 07:15:14,679 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-66.i[915,928] [2024-11-22 07:15:14,744 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:15:14,757 INFO L200 MainTranslator]: Completed pre-run [2024-11-22 07:15:14,769 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/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-10_file-66.i[915,928] [2024-11-22 07:15:14,794 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-22 07:15:14,809 INFO L204 MainTranslator]: Completed translation [2024-11-22 07:15:14,815 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14 WrapperNode [2024-11-22 07:15:14,815 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-22 07:15:14,816 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-22 07:15:14,816 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-22 07:15:14,816 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-22 07:15:14,821 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,839 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,893 INFO L138 Inliner]: procedures = 26, calls = 46, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 199 [2024-11-22 07:15:14,894 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-22 07:15:14,894 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-22 07:15:14,898 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-22 07:15:14,898 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-22 07:15:14,921 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,928 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,969 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]. [2024-11-22 07:15:14,970 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,970 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,983 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,992 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,994 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:14,995 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:15,013 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-22 07:15:15,014 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-22 07:15:15,017 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-22 07:15:15,017 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-22 07:15:15,018 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (1/1) ... [2024-11-22 07:15:15,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-22 07:15:15,039 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:15:15,058 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) [2024-11-22 07:15:15,067 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 [2024-11-22 07:15:15,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-22 07:15:15,101 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-22 07:15:15,101 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-22 07:15:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-22 07:15:15,102 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-22 07:15:15,102 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-22 07:15:15,172 INFO L238 CfgBuilder]: Building ICFG [2024-11-22 07:15:15,174 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-22 07:15:15,439 INFO L? ?]: Removed 18 outVars from TransFormulas that were not future-live. [2024-11-22 07:15:15,439 INFO L287 CfgBuilder]: Performing block encoding [2024-11-22 07:15:15,451 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-22 07:15:15,455 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-22 07:15:15,455 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:15:15 BoogieIcfgContainer [2024-11-22 07:15:15,456 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-22 07:15:15,457 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-22 07:15:15,461 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-22 07:15:15,464 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-22 07:15:15,464 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 07:15:14" (1/3) ... [2024-11-22 07:15:15,465 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10015f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:15:15, skipping insertion in model container [2024-11-22 07:15:15,465 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 07:15:14" (2/3) ... [2024-11-22 07:15:15,466 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10015f4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 07:15:15, skipping insertion in model container [2024-11-22 07:15:15,466 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 07:15:15" (3/3) ... [2024-11-22 07:15:15,467 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-10_file-66.i [2024-11-22 07:15:15,479 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-22 07:15:15,479 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-22 07:15:15,525 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-22 07:15:15,532 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;@708bf1c3, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-22 07:15:15,532 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-22 07:15:15,536 INFO L276 IsEmpty]: Start isEmpty. Operand has 87 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 52 states have internal predecessors, (70), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-22 07:15:15,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:15,548 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:15,549 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:15,549 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:15,553 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:15,554 INFO L85 PathProgramCache]: Analyzing trace with hash 1132790254, now seen corresponding path program 1 times [2024-11-22 07:15:15,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:15,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171065883] [2024-11-22 07:15:15,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:15,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:15,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:15,878 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 64 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-22 07:15:15,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:15,879 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171065883] [2024-11-22 07:15:15,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171065883] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-22 07:15:15,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586101753] [2024-11-22 07:15:15,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:15,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-22 07:15:15,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-22 07:15:15,883 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) [2024-11-22 07:15:15,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-22 07:15:16,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:16,048 INFO L255 TraceCheckSpWp]: Trace formula consists of 474 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-22 07:15:16,057 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-22 07:15:16,084 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 64 proven. 0 refuted. 0 times theorem prover too weak. 2048 trivial. 0 not checked. [2024-11-22 07:15:16,084 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-22 07:15:16,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586101753] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:16,085 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-22 07:15:16,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-22 07:15:16,087 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919783927] [2024-11-22 07:15:16,087 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:16,091 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-22 07:15:16,091 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:16,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-22 07:15:16,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:15:16,110 INFO L87 Difference]: Start difference. First operand has 87 states, 51 states have (on average 1.3725490196078431) internal successors, (70), 52 states have internal predecessors, (70), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) Second operand has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-22 07:15:16,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:16,135 INFO L93 Difference]: Finished difference Result 167 states and 299 transitions. [2024-11-22 07:15:16,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-22 07:15:16,137 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) Word has length 204 [2024-11-22 07:15:16,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:16,144 INFO L225 Difference]: With dead ends: 167 [2024-11-22 07:15:16,144 INFO L226 Difference]: Without dead ends: 83 [2024-11-22 07:15:16,148 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 205 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-22 07:15:16,150 INFO L432 NwaCegarLoop]: 129 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, 129 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 [2024-11-22 07:15:16,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:15:16,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2024-11-22 07:15:16,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 83. [2024-11-22 07:15:16,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 48 states have (on average 1.3125) internal successors, (63), 48 states have internal predecessors, (63), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2024-11-22 07:15:16,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 129 transitions. [2024-11-22 07:15:16,192 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 129 transitions. Word has length 204 [2024-11-22 07:15:16,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:16,192 INFO L471 AbstractCegarLoop]: Abstraction has 83 states and 129 transitions. [2024-11-22 07:15:16,193 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 22.0) internal successors, (44), 2 states have internal predecessors, (44), 2 states have call successors, (33), 2 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-22 07:15:16,193 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 129 transitions. [2024-11-22 07:15:16,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:16,197 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:16,197 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:16,206 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-22 07:15:16,398 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,SelfDestructingSolverStorable0 [2024-11-22 07:15:16,399 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:16,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:16,399 INFO L85 PathProgramCache]: Analyzing trace with hash 569352048, now seen corresponding path program 1 times [2024-11-22 07:15:16,400 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:16,400 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85434042] [2024-11-22 07:15:16,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:16,400 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:16,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:16,639 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:16,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:16,640 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85434042] [2024-11-22 07:15:16,640 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [85434042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:16,640 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:16,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:15:16,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880301727] [2024-11-22 07:15:16,640 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:16,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:15:16,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:16,643 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:15:16,644 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:15:16,644 INFO L87 Difference]: Start difference. First operand 83 states and 129 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:16,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:16,713 INFO L93 Difference]: Finished difference Result 242 states and 379 transitions. [2024-11-22 07:15:16,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:15:16,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-22 07:15:16,718 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:16,719 INFO L225 Difference]: With dead ends: 242 [2024-11-22 07:15:16,720 INFO L226 Difference]: Without dead ends: 162 [2024-11-22 07:15:16,722 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 [2024-11-22 07:15:16,723 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 117 mSDsluCounter, 113 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:16,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 236 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:15:16,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-11-22 07:15:16,745 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 160. [2024-11-22 07:15:16,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 91 states have (on average 1.2747252747252746) internal successors, (116), 91 states have internal predecessors, (116), 66 states have call successors, (66), 2 states have call predecessors, (66), 2 states have return successors, (66), 66 states have call predecessors, (66), 66 states have call successors, (66) [2024-11-22 07:15:16,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 248 transitions. [2024-11-22 07:15:16,748 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 248 transitions. Word has length 204 [2024-11-22 07:15:16,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:16,749 INFO L471 AbstractCegarLoop]: Abstraction has 160 states and 248 transitions. [2024-11-22 07:15:16,753 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:16,753 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 248 transitions. [2024-11-22 07:15:16,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:16,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:16,756 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:16,756 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-22 07:15:16,756 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:16,757 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:16,757 INFO L85 PathProgramCache]: Analyzing trace with hash 1378698674, now seen corresponding path program 1 times [2024-11-22 07:15:16,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:16,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [507745372] [2024-11-22 07:15:16,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:16,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:16,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:17,458 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:17,459 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:17,459 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [507745372] [2024-11-22 07:15:17,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [507745372] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:17,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:17,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:15:17,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831964930] [2024-11-22 07:15:17,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:17,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:15:17,463 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:17,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:15:17,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:15:17,464 INFO L87 Difference]: Start difference. First operand 160 states and 248 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-22 07:15:17,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:17,706 INFO L93 Difference]: Finished difference Result 381 states and 583 transitions. [2024-11-22 07:15:17,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:15:17,706 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 204 [2024-11-22 07:15:17,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:17,709 INFO L225 Difference]: With dead ends: 381 [2024-11-22 07:15:17,709 INFO L226 Difference]: Without dead ends: 224 [2024-11-22 07:15:17,710 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:15:17,711 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 146 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 146 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:17,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [146 Valid, 210 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 07:15:17,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2024-11-22 07:15:17,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 218. [2024-11-22 07:15:17,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 218 states, 135 states have (on average 1.2962962962962963) internal successors, (175), 137 states have internal predecessors, (175), 78 states have call successors, (78), 4 states have call predecessors, (78), 4 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-22 07:15:17,760 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 331 transitions. [2024-11-22 07:15:17,764 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 331 transitions. Word has length 204 [2024-11-22 07:15:17,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:17,765 INFO L471 AbstractCegarLoop]: Abstraction has 218 states and 331 transitions. [2024-11-22 07:15:17,765 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-22 07:15:17,765 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 331 transitions. [2024-11-22 07:15:17,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:17,767 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:17,767 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:17,767 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-22 07:15:17,767 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:17,768 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:17,768 INFO L85 PathProgramCache]: Analyzing trace with hash 1965504688, now seen corresponding path program 1 times [2024-11-22 07:15:17,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:17,772 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [700514544] [2024-11-22 07:15:17,772 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:17,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:17,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:21,661 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:21,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:21,662 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [700514544] [2024-11-22 07:15:21,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [700514544] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:21,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:21,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-22 07:15:21,663 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382087970] [2024-11-22 07:15:21,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:21,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 07:15:21,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:21,664 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 07:15:21,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-22 07:15:21,664 INFO L87 Difference]: Start difference. First operand 218 states and 331 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:22,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:22,302 INFO L93 Difference]: Finished difference Result 289 states and 408 transitions. [2024-11-22 07:15:22,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 07:15:22,303 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-22 07:15:22,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:22,307 INFO L225 Difference]: With dead ends: 289 [2024-11-22 07:15:22,307 INFO L226 Difference]: Without dead ends: 287 [2024-11-22 07:15:22,308 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-22 07:15:22,311 INFO L432 NwaCegarLoop]: 116 mSDtfsCounter, 166 mSDsluCounter, 579 mSDsCounter, 0 mSdLazyCounter, 354 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 354 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 354 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:22,311 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 695 Invalid, 354 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 354 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-22 07:15:22,312 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-11-22 07:15:22,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 235. [2024-11-22 07:15:22,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 152 states have internal predecessors, (193), 78 states have call successors, (78), 6 states have call predecessors, (78), 6 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-22 07:15:22,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 349 transitions. [2024-11-22 07:15:22,345 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 349 transitions. Word has length 204 [2024-11-22 07:15:22,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:22,346 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 349 transitions. [2024-11-22 07:15:22,346 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:22,346 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 349 transitions. [2024-11-22 07:15:22,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:22,348 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:22,348 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:22,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-22 07:15:22,349 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:22,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:22,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1967351730, now seen corresponding path program 1 times [2024-11-22 07:15:22,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:22,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [773546345] [2024-11-22 07:15:22,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:22,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:22,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:27,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:27,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:27,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [773546345] [2024-11-22 07:15:27,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [773546345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:27,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:27,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 07:15:27,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844363776] [2024-11-22 07:15:27,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:27,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 07:15:27,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:27,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 07:15:27,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-22 07:15:27,143 INFO L87 Difference]: Start difference. First operand 235 states and 349 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:28,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:28,313 INFO L93 Difference]: Finished difference Result 287 states and 406 transitions. [2024-11-22 07:15:28,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 07:15:28,314 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-22 07:15:28,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:28,317 INFO L225 Difference]: With dead ends: 287 [2024-11-22 07:15:28,319 INFO L226 Difference]: Without dead ends: 285 [2024-11-22 07:15:28,319 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-22 07:15:28,322 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 141 mSDsluCounter, 692 mSDsCounter, 0 mSdLazyCounter, 419 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 814 SdHoareTripleChecker+Invalid, 419 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 419 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:28,322 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 814 Invalid, 419 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 419 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 07:15:28,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2024-11-22 07:15:28,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 235. [2024-11-22 07:15:28,346 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 152 states have internal predecessors, (193), 78 states have call successors, (78), 6 states have call predecessors, (78), 6 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-22 07:15:28,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 349 transitions. [2024-11-22 07:15:28,347 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 349 transitions. Word has length 204 [2024-11-22 07:15:28,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:28,348 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 349 transitions. [2024-11-22 07:15:28,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:28,348 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 349 transitions. [2024-11-22 07:15:28,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:28,350 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:28,350 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:28,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-22 07:15:28,351 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:28,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:28,352 INFO L85 PathProgramCache]: Analyzing trace with hash -1649404238, now seen corresponding path program 1 times [2024-11-22 07:15:28,352 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:28,352 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718621043] [2024-11-22 07:15:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:28,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:28,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:31,586 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:31,586 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:31,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718621043] [2024-11-22 07:15:31,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718621043] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:31,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:31,587 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2024-11-22 07:15:31,587 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120881904] [2024-11-22 07:15:31,587 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:31,588 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-22 07:15:31,588 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:31,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-22 07:15:31,588 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2024-11-22 07:15:31,589 INFO L87 Difference]: Start difference. First operand 235 states and 349 transitions. Second operand has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:32,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:32,368 INFO L93 Difference]: Finished difference Result 294 states and 414 transitions. [2024-11-22 07:15:32,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-22 07:15:32,369 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-22 07:15:32,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:32,371 INFO L225 Difference]: With dead ends: 294 [2024-11-22 07:15:32,371 INFO L226 Difference]: Without dead ends: 292 [2024-11-22 07:15:32,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-22 07:15:32,372 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 166 mSDsluCounter, 585 mSDsCounter, 0 mSdLazyCounter, 425 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 166 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 425 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:32,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [166 Valid, 706 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 425 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 07:15:32,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 292 states. [2024-11-22 07:15:32,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 292 to 239. [2024-11-22 07:15:32,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 154 states have (on average 1.2922077922077921) internal successors, (199), 156 states have internal predecessors, (199), 78 states have call successors, (78), 6 states have call predecessors, (78), 6 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-22 07:15:32,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 355 transitions. [2024-11-22 07:15:32,412 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 355 transitions. Word has length 204 [2024-11-22 07:15:32,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:32,413 INFO L471 AbstractCegarLoop]: Abstraction has 239 states and 355 transitions. [2024-11-22 07:15:32,414 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.8) internal successors, (42), 15 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:32,414 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 355 transitions. [2024-11-22 07:15:32,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:32,415 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:32,416 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:32,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-22 07:15:32,416 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:32,416 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:32,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1647557196, now seen corresponding path program 1 times [2024-11-22 07:15:32,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:32,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1151037748] [2024-11-22 07:15:32,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:32,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:36,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:36,855 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:36,855 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1151037748] [2024-11-22 07:15:36,855 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1151037748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:36,856 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:36,856 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 07:15:36,856 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380293626] [2024-11-22 07:15:36,856 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:36,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 07:15:36,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:36,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 07:15:36,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=171, Unknown=0, NotChecked=0, Total=240 [2024-11-22 07:15:36,857 INFO L87 Difference]: Start difference. First operand 239 states and 355 transitions. Second operand has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:37,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:37,833 INFO L93 Difference]: Finished difference Result 292 states and 412 transitions. [2024-11-22 07:15:37,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 07:15:37,834 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-22 07:15:37,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:37,835 INFO L225 Difference]: With dead ends: 292 [2024-11-22 07:15:37,835 INFO L226 Difference]: Without dead ends: 290 [2024-11-22 07:15:37,836 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=91, Invalid=215, Unknown=0, NotChecked=0, Total=306 [2024-11-22 07:15:37,836 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 121 mSDsluCounter, 952 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 1081 SdHoareTripleChecker+Invalid, 552 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:37,836 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 1081 Invalid, 552 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 552 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 07:15:37,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290 states. [2024-11-22 07:15:37,849 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290 to 235. [2024-11-22 07:15:37,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 150 states have (on average 1.2866666666666666) internal successors, (193), 152 states have internal predecessors, (193), 78 states have call successors, (78), 6 states have call predecessors, (78), 6 states have return successors, (78), 76 states have call predecessors, (78), 78 states have call successors, (78) [2024-11-22 07:15:37,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 349 transitions. [2024-11-22 07:15:37,851 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 349 transitions. Word has length 204 [2024-11-22 07:15:37,852 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:37,852 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 349 transitions. [2024-11-22 07:15:37,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.625) internal successors, (42), 16 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:37,852 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 349 transitions. [2024-11-22 07:15:37,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:37,853 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:37,854 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:37,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-22 07:15:37,854 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:37,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:37,854 INFO L85 PathProgramCache]: Analyzing trace with hash 1414323500, now seen corresponding path program 1 times [2024-11-22 07:15:37,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:37,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107636015] [2024-11-22 07:15:37,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:37,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:37,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:37,941 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:37,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:37,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107636015] [2024-11-22 07:15:37,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107636015] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:37,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:37,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-22 07:15:37,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431520466] [2024-11-22 07:15:37,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:37,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-22 07:15:37,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:37,944 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-22 07:15:37,944 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-22 07:15:37,945 INFO L87 Difference]: Start difference. First operand 235 states and 349 transitions. Second operand has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:38,149 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:38,149 INFO L93 Difference]: Finished difference Result 766 states and 1128 transitions. [2024-11-22 07:15:38,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-22 07:15:38,150 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-22 07:15:38,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:38,152 INFO L225 Difference]: With dead ends: 766 [2024-11-22 07:15:38,152 INFO L226 Difference]: Without dead ends: 534 [2024-11-22 07:15:38,153 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-22 07:15:38,154 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 96 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 205 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 390 SdHoareTripleChecker+Invalid, 218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 205 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:38,157 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [96 Valid, 390 Invalid, 218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 205 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-22 07:15:38,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 534 states. [2024-11-22 07:15:38,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 534 to 481. [2024-11-22 07:15:38,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 302 states have (on average 1.281456953642384) internal successors, (387), 308 states have internal predecessors, (387), 164 states have call successors, (164), 14 states have call predecessors, (164), 14 states have return successors, (164), 158 states have call predecessors, (164), 164 states have call successors, (164) [2024-11-22 07:15:38,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 715 transitions. [2024-11-22 07:15:38,197 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 715 transitions. Word has length 204 [2024-11-22 07:15:38,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:38,197 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 715 transitions. [2024-11-22 07:15:38,197 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 8.4) internal successors, (42), 5 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:38,198 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 715 transitions. [2024-11-22 07:15:38,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:38,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:38,199 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:38,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-22 07:15:38,199 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:38,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:38,200 INFO L85 PathProgramCache]: Analyzing trace with hash -2071297170, now seen corresponding path program 1 times [2024-11-22 07:15:38,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:38,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1656707982] [2024-11-22 07:15:38,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:38,200 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:38,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:38,241 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:38,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:38,241 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1656707982] [2024-11-22 07:15:38,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1656707982] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:38,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:38,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-22 07:15:38,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755496025] [2024-11-22 07:15:38,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:38,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-22 07:15:38,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:38,243 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-22 07:15:38,243 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-22 07:15:38,243 INFO L87 Difference]: Start difference. First operand 481 states and 715 transitions. Second operand has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:38,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:38,302 INFO L93 Difference]: Finished difference Result 924 states and 1379 transitions. [2024-11-22 07:15:38,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-22 07:15:38,302 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-22 07:15:38,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:38,304 INFO L225 Difference]: With dead ends: 924 [2024-11-22 07:15:38,304 INFO L226 Difference]: Without dead ends: 446 [2024-11-22 07:15:38,306 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 [2024-11-22 07:15:38,306 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 116 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 351 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:38,306 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 351 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-22 07:15:38,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-22 07:15:38,331 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 440. [2024-11-22 07:15:38,332 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 273 states have (on average 1.216117216117216) internal successors, (332), 277 states have internal predecessors, (332), 154 states have call successors, (154), 12 states have call predecessors, (154), 12 states have return successors, (154), 150 states have call predecessors, (154), 154 states have call successors, (154) [2024-11-22 07:15:38,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 640 transitions. [2024-11-22 07:15:38,335 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 640 transitions. Word has length 204 [2024-11-22 07:15:38,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:38,336 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 640 transitions. [2024-11-22 07:15:38,336 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.0) internal successors, (42), 3 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:38,336 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 640 transitions. [2024-11-22 07:15:38,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:38,337 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:38,337 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:38,337 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-22 07:15:38,337 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:38,338 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:38,338 INFO L85 PathProgramCache]: Analyzing trace with hash 2094381870, now seen corresponding path program 1 times [2024-11-22 07:15:38,338 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:38,338 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430127491] [2024-11-22 07:15:38,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:38,338 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:38,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:40,192 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:40,193 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:40,193 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430127491] [2024-11-22 07:15:40,193 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430127491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:40,193 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:40,193 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-11-22 07:15:40,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137162361] [2024-11-22 07:15:40,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:40,194 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-22 07:15:40,194 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:40,194 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-22 07:15:40,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2024-11-22 07:15:40,195 INFO L87 Difference]: Start difference. First operand 440 states and 640 transitions. Second operand has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:41,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:41,029 INFO L93 Difference]: Finished difference Result 522 states and 729 transitions. [2024-11-22 07:15:41,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-22 07:15:41,030 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-22 07:15:41,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:41,032 INFO L225 Difference]: With dead ends: 522 [2024-11-22 07:15:41,033 INFO L226 Difference]: Without dead ends: 520 [2024-11-22 07:15:41,033 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-22 07:15:41,033 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 226 mSDsluCounter, 568 mSDsCounter, 0 mSdLazyCounter, 529 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 226 SdHoareTripleChecker+Valid, 708 SdHoareTripleChecker+Invalid, 545 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 529 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:41,034 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [226 Valid, 708 Invalid, 545 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 529 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 07:15:41,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 520 states. [2024-11-22 07:15:41,089 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 520 to 467. [2024-11-22 07:15:41,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 297 states have (on average 1.2154882154882154) internal successors, (361), 302 states have internal predecessors, (361), 156 states have call successors, (156), 13 states have call predecessors, (156), 13 states have return successors, (156), 151 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-22 07:15:41,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 673 transitions. [2024-11-22 07:15:41,100 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 673 transitions. Word has length 204 [2024-11-22 07:15:41,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:41,100 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 673 transitions. [2024-11-22 07:15:41,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.5) internal successors, (42), 12 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:41,100 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 673 transitions. [2024-11-22 07:15:41,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-22 07:15:41,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:41,101 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:41,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-22 07:15:41,101 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:41,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:41,102 INFO L85 PathProgramCache]: Analyzing trace with hash 2096228912, now seen corresponding path program 1 times [2024-11-22 07:15:41,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:41,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441662790] [2024-11-22 07:15:41,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:41,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:41,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:44,125 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:44,125 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:44,125 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441662790] [2024-11-22 07:15:44,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441662790] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:44,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:44,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2024-11-22 07:15:44,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592827695] [2024-11-22 07:15:44,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:44,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-22 07:15:44,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:44,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-22 07:15:44,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=62, Invalid=120, Unknown=0, NotChecked=0, Total=182 [2024-11-22 07:15:44,130 INFO L87 Difference]: Start difference. First operand 467 states and 673 transitions. Second operand has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:46,263 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.86s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-22 07:15:46,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:46,970 INFO L93 Difference]: Finished difference Result 520 states and 727 transitions. [2024-11-22 07:15:46,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-22 07:15:46,971 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 204 [2024-11-22 07:15:46,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:46,974 INFO L225 Difference]: With dead ends: 520 [2024-11-22 07:15:46,974 INFO L226 Difference]: Without dead ends: 518 [2024-11-22 07:15:46,974 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=84, Invalid=156, Unknown=0, NotChecked=0, Total=240 [2024-11-22 07:15:46,975 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 265 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 364 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 705 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 364 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:46,975 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 705 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 364 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-22 07:15:46,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 518 states. [2024-11-22 07:15:47,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 518 to 467. [2024-11-22 07:15:47,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 297 states have (on average 1.2154882154882154) internal successors, (361), 302 states have internal predecessors, (361), 156 states have call successors, (156), 13 states have call predecessors, (156), 13 states have return successors, (156), 151 states have call predecessors, (156), 156 states have call successors, (156) [2024-11-22 07:15:47,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 673 transitions. [2024-11-22 07:15:47,008 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 673 transitions. Word has length 204 [2024-11-22 07:15:47,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:47,008 INFO L471 AbstractCegarLoop]: Abstraction has 467 states and 673 transitions. [2024-11-22 07:15:47,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0) internal successors, (42), 14 states have internal predecessors, (42), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:47,008 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 673 transitions. [2024-11-22 07:15:47,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-22 07:15:47,009 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:47,009 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:47,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-22 07:15:47,010 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:47,010 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:47,010 INFO L85 PathProgramCache]: Analyzing trace with hash -730345455, now seen corresponding path program 1 times [2024-11-22 07:15:47,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:47,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1788773080] [2024-11-22 07:15:47,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:47,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:47,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:49,370 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:49,370 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:49,370 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1788773080] [2024-11-22 07:15:49,371 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1788773080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:49,371 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:49,371 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 07:15:49,371 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186141251] [2024-11-22 07:15:49,371 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:49,371 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 07:15:49,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:49,372 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 07:15:49,372 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-22 07:15:49,372 INFO L87 Difference]: Start difference. First operand 467 states and 673 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:50,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:15:50,209 INFO L93 Difference]: Finished difference Result 667 states and 915 transitions. [2024-11-22 07:15:50,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 07:15:50,210 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-22 07:15:50,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:15:50,220 INFO L225 Difference]: With dead ends: 667 [2024-11-22 07:15:50,220 INFO L226 Difference]: Without dead ends: 665 [2024-11-22 07:15:50,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=109, Invalid=197, Unknown=0, NotChecked=0, Total=306 [2024-11-22 07:15:50,221 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 243 mSDsluCounter, 787 mSDsCounter, 0 mSdLazyCounter, 387 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 938 SdHoareTripleChecker+Invalid, 398 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 387 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-22 07:15:50,221 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 938 Invalid, 398 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 387 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-22 07:15:50,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-22 07:15:50,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 475. [2024-11-22 07:15:50,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 307 states have (on average 1.221498371335505) internal successors, (375), 311 states have internal predecessors, (375), 152 states have call successors, (152), 15 states have call predecessors, (152), 15 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-22 07:15:50,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 679 transitions. [2024-11-22 07:15:50,268 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 679 transitions. Word has length 205 [2024-11-22 07:15:50,268 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:15:50,268 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 679 transitions. [2024-11-22 07:15:50,268 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:15:50,269 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 679 transitions. [2024-11-22 07:15:50,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-22 07:15:50,270 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:15:50,270 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:15:50,270 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-22 07:15:50,270 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:15:50,270 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:15:50,271 INFO L85 PathProgramCache]: Analyzing trace with hash -728498413, now seen corresponding path program 1 times [2024-11-22 07:15:50,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:15:50,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209225330] [2024-11-22 07:15:50,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:15:50,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:15:50,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:15:56,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:15:56,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:15:56,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209225330] [2024-11-22 07:15:56,697 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [209225330] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:15:56,697 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:15:56,697 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2024-11-22 07:15:56,698 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455096549] [2024-11-22 07:15:56,698 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:15:56,702 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-22 07:15:56,702 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:15:56,703 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-22 07:15:56,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=232, Unknown=0, NotChecked=0, Total=306 [2024-11-22 07:15:56,703 INFO L87 Difference]: Start difference. First operand 475 states and 679 transitions. Second operand has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-22 07:16:00,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:16:00,137 INFO L93 Difference]: Finished difference Result 628 states and 867 transitions. [2024-11-22 07:16:00,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 07:16:00,139 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) Word has length 205 [2024-11-22 07:16:00,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:16:00,141 INFO L225 Difference]: With dead ends: 628 [2024-11-22 07:16:00,142 INFO L226 Difference]: Without dead ends: 626 [2024-11-22 07:16:00,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=255, Invalid=737, Unknown=0, NotChecked=0, Total=992 [2024-11-22 07:16:00,147 INFO L432 NwaCegarLoop]: 146 mSDtfsCounter, 319 mSDsluCounter, 632 mSDsCounter, 0 mSdLazyCounter, 811 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 845 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-22 07:16:00,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 778 Invalid, 845 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 811 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-22 07:16:00,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 626 states. [2024-11-22 07:16:00,187 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 626 to 475. [2024-11-22 07:16:00,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 307 states have (on average 1.221498371335505) internal successors, (375), 311 states have internal predecessors, (375), 152 states have call successors, (152), 15 states have call predecessors, (152), 15 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-22 07:16:00,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 679 transitions. [2024-11-22 07:16:00,191 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 679 transitions. Word has length 205 [2024-11-22 07:16:00,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:16:00,192 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 679 transitions. [2024-11-22 07:16:00,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.388888888888889) internal successors, (43), 18 states have internal predecessors, (43), 2 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 2 states have call predecessors, (33), 2 states have call successors, (33) [2024-11-22 07:16:00,192 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 679 transitions. [2024-11-22 07:16:00,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-22 07:16:00,193 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:16:00,193 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:16:00,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-22 07:16:00,193 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:16:00,194 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:16:00,194 INFO L85 PathProgramCache]: Analyzing trace with hash -50287085, now seen corresponding path program 1 times [2024-11-22 07:16:00,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:16:00,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527394633] [2024-11-22 07:16:00,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:16:00,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:16:00,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:16:03,040 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:16:03,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:16:03,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527394633] [2024-11-22 07:16:03,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527394633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:16:03,041 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:16:03,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 07:16:03,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1137209849] [2024-11-22 07:16:03,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:16:03,042 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 07:16:03,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:16:03,042 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 07:16:03,043 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-22 07:16:03,043 INFO L87 Difference]: Start difference. First operand 475 states and 679 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:16:03,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:16:03,799 INFO L93 Difference]: Finished difference Result 635 states and 875 transitions. [2024-11-22 07:16:03,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 07:16:03,799 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-22 07:16:03,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:16:03,802 INFO L225 Difference]: With dead ends: 635 [2024-11-22 07:16:03,802 INFO L226 Difference]: Without dead ends: 633 [2024-11-22 07:16:03,803 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=109, Invalid=197, Unknown=0, NotChecked=0, Total=306 [2024-11-22 07:16:03,805 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 267 mSDsluCounter, 599 mSDsCounter, 0 mSdLazyCounter, 381 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 755 SdHoareTripleChecker+Invalid, 414 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-22 07:16:03,805 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 755 Invalid, 414 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 381 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-22 07:16:03,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2024-11-22 07:16:03,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 479. [2024-11-22 07:16:03,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 311 states have (on average 1.22508038585209) internal successors, (381), 315 states have internal predecessors, (381), 152 states have call successors, (152), 15 states have call predecessors, (152), 15 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-22 07:16:03,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 685 transitions. [2024-11-22 07:16:03,846 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 685 transitions. Word has length 205 [2024-11-22 07:16:03,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:16:03,846 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 685 transitions. [2024-11-22 07:16:03,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:16:03,846 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 685 transitions. [2024-11-22 07:16:03,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-22 07:16:03,847 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:16:03,847 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:16:03,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-22 07:16:03,848 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:16:03,848 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:16:03,848 INFO L85 PathProgramCache]: Analyzing trace with hash -48440043, now seen corresponding path program 1 times [2024-11-22 07:16:03,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:16:03,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029196418] [2024-11-22 07:16:03,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:16:03,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:16:03,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:16:10,476 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:16:10,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:16:10,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029196418] [2024-11-22 07:16:10,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029196418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:16:10,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:16:10,477 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2024-11-22 07:16:10,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185139445] [2024-11-22 07:16:10,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:16:10,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-22 07:16:10,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:16:10,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-22 07:16:10,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=269, Unknown=0, NotChecked=0, Total=342 [2024-11-22 07:16:10,481 INFO L87 Difference]: Start difference. First operand 479 states and 685 transitions. Second operand has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-22 07:16:14,563 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:16:14,563 INFO L93 Difference]: Finished difference Result 649 states and 885 transitions. [2024-11-22 07:16:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-22 07:16:14,564 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) Word has length 205 [2024-11-22 07:16:14,564 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:16:14,568 INFO L225 Difference]: With dead ends: 649 [2024-11-22 07:16:14,568 INFO L226 Difference]: Without dead ends: 647 [2024-11-22 07:16:14,570 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2024-11-22 07:16:14,570 INFO L432 NwaCegarLoop]: 152 mSDtfsCounter, 390 mSDsluCounter, 634 mSDsCounter, 0 mSdLazyCounter, 985 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 390 SdHoareTripleChecker+Valid, 786 SdHoareTripleChecker+Invalid, 1056 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 985 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-22 07:16:14,570 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [390 Valid, 786 Invalid, 1056 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 985 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-22 07:16:14,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2024-11-22 07:16:14,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 487. [2024-11-22 07:16:14,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 487 states, 316 states have (on average 1.2151898734177216) internal successors, (384), 320 states have internal predecessors, (384), 152 states have call successors, (152), 18 states have call predecessors, (152), 18 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-22 07:16:14,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 487 states to 487 states and 688 transitions. [2024-11-22 07:16:14,612 INFO L78 Accepts]: Start accepts. Automaton has 487 states and 688 transitions. Word has length 205 [2024-11-22 07:16:14,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:16:14,613 INFO L471 AbstractCegarLoop]: Abstraction has 487 states and 688 transitions. [2024-11-22 07:16:14,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.263157894736842) internal successors, (43), 19 states have internal predecessors, (43), 3 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 3 states have call predecessors, (33), 3 states have call successors, (33) [2024-11-22 07:16:14,613 INFO L276 IsEmpty]: Start isEmpty. Operand 487 states and 688 transitions. [2024-11-22 07:16:14,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-22 07:16:14,614 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:16:14,614 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:16:14,614 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-22 07:16:14,615 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:16:14,615 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:16:14,615 INFO L85 PathProgramCache]: Analyzing trace with hash -143539441, now seen corresponding path program 1 times [2024-11-22 07:16:14,615 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:16:14,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1301195265] [2024-11-22 07:16:14,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:16:14,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:16:14,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-22 07:16:35,846 INFO L134 CoverageAnalysis]: Checked inductivity of 2112 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2112 trivial. 0 not checked. [2024-11-22 07:16:35,846 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-22 07:16:35,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1301195265] [2024-11-22 07:16:35,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1301195265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-22 07:16:35,847 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-22 07:16:35,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2024-11-22 07:16:35,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [443357495] [2024-11-22 07:16:35,847 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-22 07:16:35,847 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-22 07:16:35,848 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-22 07:16:35,848 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-22 07:16:35,848 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2024-11-22 07:16:35,848 INFO L87 Difference]: Start difference. First operand 487 states and 688 transitions. Second operand has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:16:38,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-22 07:16:38,214 INFO L93 Difference]: Finished difference Result 720 states and 967 transitions. [2024-11-22 07:16:38,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-22 07:16:38,214 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) Word has length 205 [2024-11-22 07:16:38,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-22 07:16:38,218 INFO L225 Difference]: With dead ends: 720 [2024-11-22 07:16:38,219 INFO L226 Difference]: Without dead ends: 718 [2024-11-22 07:16:38,220 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=221, Invalid=535, Unknown=0, NotChecked=0, Total=756 [2024-11-22 07:16:38,221 INFO L432 NwaCegarLoop]: 163 mSDtfsCounter, 224 mSDsluCounter, 965 mSDsCounter, 0 mSdLazyCounter, 650 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 1128 SdHoareTripleChecker+Invalid, 675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 650 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-22 07:16:38,224 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 1128 Invalid, 675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 650 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-22 07:16:38,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 718 states. [2024-11-22 07:16:38,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 718 to 501. [2024-11-22 07:16:38,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 501 states, 330 states have (on average 1.2303030303030302) internal successors, (406), 334 states have internal predecessors, (406), 152 states have call successors, (152), 18 states have call predecessors, (152), 18 states have return successors, (152), 148 states have call predecessors, (152), 152 states have call successors, (152) [2024-11-22 07:16:38,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 710 transitions. [2024-11-22 07:16:38,275 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 710 transitions. Word has length 205 [2024-11-22 07:16:38,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-22 07:16:38,277 INFO L471 AbstractCegarLoop]: Abstraction has 501 states and 710 transitions. [2024-11-22 07:16:38,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 1 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 1 states have call predecessors, (33), 1 states have call successors, (33) [2024-11-22 07:16:38,277 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 710 transitions. [2024-11-22 07:16:38,278 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2024-11-22 07:16:38,278 INFO L207 NwaCegarLoop]: Found error trace [2024-11-22 07:16:38,278 INFO L215 NwaCegarLoop]: trace histogram [33, 33, 33, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-22 07:16:38,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-22 07:16:38,278 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-22 07:16:38,278 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-22 07:16:38,279 INFO L85 PathProgramCache]: Analyzing trace with hash -141692399, now seen corresponding path program 1 times [2024-11-22 07:16:38,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-22 07:16:38,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796753967] [2024-11-22 07:16:38,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-22 07:16:38,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-22 07:16:38,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat