./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem17_label44.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 826ab2ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem17_label44.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd --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 d0e5dd4e0c78cefc17408729e8bdba9412ef1664051b7c9adb868259950eae21 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:12:35,811 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:12:35,912 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:12:35,918 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:12:35,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:12:35,948 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:12:35,949 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:12:35,949 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:12:35,949 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:12:35,950 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:12:35,950 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:12:35,950 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:12:35,951 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:12:35,951 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:12:35,951 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:12:35,951 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:12:35,952 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:12:35,952 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:12:35,952 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:12:35,952 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:12:35,952 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:12:35,953 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:12:35,953 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:12:35,953 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:12:35,953 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:12:35,953 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:12:35,953 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:12:35,954 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:12:35,954 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:12:35,954 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:12:35,954 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:12:35,954 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:12:35,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:12:35,955 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:12:35,955 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:12:35,955 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:12:35,955 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:12:35,955 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:12:35,956 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:12:35,956 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:12:35,956 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:12:35,956 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:12:35,956 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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 -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd 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 -> d0e5dd4e0c78cefc17408729e8bdba9412ef1664051b7c9adb868259950eae21 [2024-11-13 13:12:36,357 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:12:36,373 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:12:36,376 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:12:36,378 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:12:36,378 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:12:36,380 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem17_label44.c Unable to find full path for "g++" [2024-11-13 13:12:38,450 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:12:39,137 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:12:39,138 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/sv-benchmarks/c/eca-rers2012/Problem17_label44.c [2024-11-13 13:12:39,169 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/data/653690702/72457b641db7421d9f57b37692f120bc/FLAG7cce22e32 [2024-11-13 13:12:39,555 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/data/653690702/72457b641db7421d9f57b37692f120bc [2024-11-13 13:12:39,558 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:12:39,565 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:12:39,571 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:12:39,572 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:12:39,592 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:12:39,593 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,594 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@35bd4cd1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:39, skipping insertion in model container [2024-11-13 13:12:39,595 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:12:39" (1/1) ... [2024-11-13 13:12:39,785 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:12:40,061 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/sv-benchmarks/c/eca-rers2012/Problem17_label44.c[5354,5367] [2024-11-13 13:12:40,904 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:12:40,920 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:12:40,958 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/sv-benchmarks/c/eca-rers2012/Problem17_label44.c[5354,5367] [2024-11-13 13:12:41,396 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:12:41,422 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:12:41,423 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41 WrapperNode [2024-11-13 13:12:41,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:12:41,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:12:41,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:12:41,427 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:12:41,436 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,502 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,922 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 2612 [2024-11-13 13:12:41,923 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:12:41,925 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:12:41,925 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:12:41,926 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:12:41,937 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:41,937 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,041 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,251 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]. [2024-11-13 13:12:42,251 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,252 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,474 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,565 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,582 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,686 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:12:42,691 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:12:42,691 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:12:42,691 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:12:42,695 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (1/1) ... [2024-11-13 13:12:42,702 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:12:42,717 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:12:42,733 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:12:42,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:12:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:12:42,771 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:12:42,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:12:42,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:12:42,959 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:12:42,961 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:12:49,322 INFO L? ?]: Removed 372 outVars from TransFormulas that were not future-live. [2024-11-13 13:12:49,322 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:12:49,373 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:12:49,377 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:12:49,378 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:12:49 BoogieIcfgContainer [2024-11-13 13:12:49,378 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:12:49,381 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:12:49,385 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:12:49,394 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:12:49,394 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:12:39" (1/3) ... [2024-11-13 13:12:49,395 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32dec2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:12:49, skipping insertion in model container [2024-11-13 13:12:49,395 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:12:41" (2/3) ... [2024-11-13 13:12:49,396 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32dec2ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:12:49, skipping insertion in model container [2024-11-13 13:12:49,396 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:12:49" (3/3) ... [2024-11-13 13:12:49,398 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem17_label44.c [2024-11-13 13:12:49,423 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:12:49,425 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem17_label44.c that has 1 procedures, 590 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:12:49,601 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:12:49,617 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;@70dc5d28, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:12:49,618 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:12:49,625 INFO L276 IsEmpty]: Start isEmpty. Operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:49,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-13 13:12:49,633 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:49,634 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:12:49,634 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:12:49,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:49,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1946088576, now seen corresponding path program 1 times [2024-11-13 13:12:49,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:49,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468128781] [2024-11-13 13:12:49,650 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:49,654 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:50,143 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:50,143 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:50,144 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468128781] [2024-11-13 13:12:50,145 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468128781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:50,145 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:50,145 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:12:50,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1657365758] [2024-11-13 13:12:50,149 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:50,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:12:50,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:50,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:12:50,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:12:50,178 INFO L87 Difference]: Start difference. First operand has 590 states, 588 states have (on average 1.8061224489795917) internal successors, (1062), 589 states have internal predecessors, (1062), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:54,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:54,330 INFO L93 Difference]: Finished difference Result 1642 states and 3024 transitions. [2024-11-13 13:12:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:12:54,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 35 [2024-11-13 13:12:54,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:54,356 INFO L225 Difference]: With dead ends: 1642 [2024-11-13 13:12:54,356 INFO L226 Difference]: Without dead ends: 975 [2024-11-13 13:12:54,362 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:12:54,365 INFO L432 NwaCegarLoop]: 474 mSDtfsCounter, 455 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 1413 mSolverCounterSat, 372 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 550 SdHoareTripleChecker+Invalid, 1785 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 372 IncrementalHoareTripleChecker+Valid, 1413 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:54,367 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 550 Invalid, 1785 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [372 Valid, 1413 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-13 13:12:54,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 975 states. [2024-11-13 13:12:54,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 975 to 972. [2024-11-13 13:12:54,476 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 972 states, 971 states have (on average 1.5077239958805355) internal successors, (1464), 971 states have internal predecessors, (1464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:54,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 972 states to 972 states and 1464 transitions. [2024-11-13 13:12:54,491 INFO L78 Accepts]: Start accepts. Automaton has 972 states and 1464 transitions. Word has length 35 [2024-11-13 13:12:54,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:54,492 INFO L471 AbstractCegarLoop]: Abstraction has 972 states and 1464 transitions. [2024-11-13 13:12:54,492 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.666666666666666) internal successors, (35), 2 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:54,495 INFO L276 IsEmpty]: Start isEmpty. Operand 972 states and 1464 transitions. [2024-11-13 13:12:54,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2024-11-13 13:12:54,498 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:54,498 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:12:54,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:12:54,499 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:12:54,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:54,503 INFO L85 PathProgramCache]: Analyzing trace with hash -1250974253, now seen corresponding path program 1 times [2024-11-13 13:12:54,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:54,504 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289109428] [2024-11-13 13:12:54,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:54,504 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:54,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:55,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:55,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289109428] [2024-11-13 13:12:55,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289109428] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:55,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:55,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:12:55,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1901821631] [2024-11-13 13:12:55,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:55,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:12:55,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:55,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:12:55,066 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:12:55,066 INFO L87 Difference]: Start difference. First operand 972 states and 1464 transitions. Second operand has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:59,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:12:59,112 INFO L93 Difference]: Finished difference Result 2814 states and 4242 transitions. [2024-11-13 13:12:59,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:12:59,113 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 105 [2024-11-13 13:12:59,114 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:12:59,122 INFO L225 Difference]: With dead ends: 2814 [2024-11-13 13:12:59,123 INFO L226 Difference]: Without dead ends: 1844 [2024-11-13 13:12:59,124 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 [2024-11-13 13:12:59,126 INFO L432 NwaCegarLoop]: 853 mSDtfsCounter, 456 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 1283 mSolverCounterSat, 414 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 921 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 414 IncrementalHoareTripleChecker+Valid, 1283 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:12:59,126 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 921 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [414 Valid, 1283 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-13 13:12:59,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1844 states. [2024-11-13 13:12:59,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1844 to 1842. [2024-11-13 13:12:59,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1842 states, 1841 states have (on average 1.3601303639326452) internal successors, (2504), 1841 states have internal predecessors, (2504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:59,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1842 states to 1842 states and 2504 transitions. [2024-11-13 13:12:59,190 INFO L78 Accepts]: Start accepts. Automaton has 1842 states and 2504 transitions. Word has length 105 [2024-11-13 13:12:59,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:12:59,191 INFO L471 AbstractCegarLoop]: Abstraction has 1842 states and 2504 transitions. [2024-11-13 13:12:59,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.0) internal successors, (105), 3 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:12:59,191 INFO L276 IsEmpty]: Start isEmpty. Operand 1842 states and 2504 transitions. [2024-11-13 13:12:59,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-11-13 13:12:59,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:12:59,200 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:12:59,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:12:59,200 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:12:59,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:12:59,204 INFO L85 PathProgramCache]: Analyzing trace with hash 1382500656, now seen corresponding path program 1 times [2024-11-13 13:12:59,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:12:59,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [826388258] [2024-11-13 13:12:59,205 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:12:59,205 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:12:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:12:59,558 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:12:59,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:12:59,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [826388258] [2024-11-13 13:12:59,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [826388258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:12:59,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:12:59,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:12:59,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898714550] [2024-11-13 13:12:59,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:12:59,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:12:59,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:12:59,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:12:59,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:12:59,567 INFO L87 Difference]: Start difference. First operand 1842 states and 2504 transitions. Second operand has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:03,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:03,063 INFO L93 Difference]: Finished difference Result 4559 states and 6339 transitions. [2024-11-13 13:13:03,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:03,064 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 127 [2024-11-13 13:13:03,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:03,077 INFO L225 Difference]: With dead ends: 4559 [2024-11-13 13:13:03,077 INFO L226 Difference]: Without dead ends: 2719 [2024-11-13 13:13:03,079 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:03,080 INFO L432 NwaCegarLoop]: 385 mSDtfsCounter, 382 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1403 mSolverCounterSat, 283 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 1686 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 283 IncrementalHoareTripleChecker+Valid, 1403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:03,081 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 460 Invalid, 1686 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [283 Valid, 1403 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 13:13:03,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2024-11-13 13:13:03,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2711. [2024-11-13 13:13:03,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2711 states, 2710 states have (on average 1.3007380073800738) internal successors, (3525), 2710 states have internal predecessors, (3525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:03,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2711 states to 2711 states and 3525 transitions. [2024-11-13 13:13:03,156 INFO L78 Accepts]: Start accepts. Automaton has 2711 states and 3525 transitions. Word has length 127 [2024-11-13 13:13:03,156 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:03,156 INFO L471 AbstractCegarLoop]: Abstraction has 2711 states and 3525 transitions. [2024-11-13 13:13:03,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.333333333333336) internal successors, (127), 2 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:03,157 INFO L276 IsEmpty]: Start isEmpty. Operand 2711 states and 3525 transitions. [2024-11-13 13:13:03,159 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2024-11-13 13:13:03,159 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:03,160 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:03,160 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:13:03,160 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:03,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:03,161 INFO L85 PathProgramCache]: Analyzing trace with hash 418222992, now seen corresponding path program 1 times [2024-11-13 13:13:03,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:03,161 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984561339] [2024-11-13 13:13:03,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:03,161 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:03,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:03,858 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:13:03,859 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:03,860 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984561339] [2024-11-13 13:13:03,860 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984561339] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:03,860 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:03,860 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:13:03,860 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1523209250] [2024-11-13 13:13:03,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:03,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:03,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:03,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:03,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:03,864 INFO L87 Difference]: Start difference. First operand 2711 states and 3525 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:06,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:06,705 INFO L93 Difference]: Finished difference Result 6280 states and 8056 transitions. [2024-11-13 13:13:06,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:06,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 140 [2024-11-13 13:13:06,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:06,719 INFO L225 Difference]: With dead ends: 6280 [2024-11-13 13:13:06,719 INFO L226 Difference]: Without dead ends: 3571 [2024-11-13 13:13:06,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:06,724 INFO L432 NwaCegarLoop]: 508 mSDtfsCounter, 333 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1426 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 565 SdHoareTripleChecker+Invalid, 1485 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1426 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:06,725 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 565 Invalid, 1485 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1426 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 13:13:06,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3571 states. [2024-11-13 13:13:06,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3571 to 3565. [2024-11-13 13:13:06,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3565 states, 3564 states have (on average 1.2514029180695847) internal successors, (4460), 3564 states have internal predecessors, (4460), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:06,850 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3565 states to 3565 states and 4460 transitions. [2024-11-13 13:13:06,850 INFO L78 Accepts]: Start accepts. Automaton has 3565 states and 4460 transitions. Word has length 140 [2024-11-13 13:13:06,851 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:06,852 INFO L471 AbstractCegarLoop]: Abstraction has 3565 states and 4460 transitions. [2024-11-13 13:13:06,852 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 2 states have internal predecessors, (140), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:06,852 INFO L276 IsEmpty]: Start isEmpty. Operand 3565 states and 4460 transitions. [2024-11-13 13:13:06,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2024-11-13 13:13:06,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:06,855 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:06,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:13:06,856 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:06,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:06,856 INFO L85 PathProgramCache]: Analyzing trace with hash -2114254849, now seen corresponding path program 1 times [2024-11-13 13:13:06,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:06,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506834840] [2024-11-13 13:13:06,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:06,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:06,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:07,091 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:13:07,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:07,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506834840] [2024-11-13 13:13:07,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506834840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:07,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:07,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:13:07,092 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [590125721] [2024-11-13 13:13:07,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:07,092 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:07,092 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:07,093 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:07,093 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:07,093 INFO L87 Difference]: Start difference. First operand 3565 states and 4460 transitions. Second operand has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:09,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:09,950 INFO L93 Difference]: Finished difference Result 10542 states and 13163 transitions. [2024-11-13 13:13:09,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:09,951 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 146 [2024-11-13 13:13:09,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:09,971 INFO L225 Difference]: With dead ends: 10542 [2024-11-13 13:13:09,972 INFO L226 Difference]: Without dead ends: 6125 [2024-11-13 13:13:09,977 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:09,980 INFO L432 NwaCegarLoop]: 516 mSDtfsCounter, 347 mSDsluCounter, 75 mSDsCounter, 0 mSdLazyCounter, 1081 mSolverCounterSat, 548 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 591 SdHoareTripleChecker+Invalid, 1629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 548 IncrementalHoareTripleChecker+Valid, 1081 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:09,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 591 Invalid, 1629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [548 Valid, 1081 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 13:13:09,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6125 states. [2024-11-13 13:13:10,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6125 to 4418. [2024-11-13 13:13:10,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4418 states, 4417 states have (on average 1.1557618292959022) internal successors, (5105), 4417 states have internal predecessors, (5105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:10,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4418 states to 4418 states and 5105 transitions. [2024-11-13 13:13:10,101 INFO L78 Accepts]: Start accepts. Automaton has 4418 states and 5105 transitions. Word has length 146 [2024-11-13 13:13:10,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:10,101 INFO L471 AbstractCegarLoop]: Abstraction has 4418 states and 5105 transitions. [2024-11-13 13:13:10,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.666666666666664) internal successors, (146), 2 states have internal predecessors, (146), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:10,102 INFO L276 IsEmpty]: Start isEmpty. Operand 4418 states and 5105 transitions. [2024-11-13 13:13:10,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2024-11-13 13:13:10,105 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:10,105 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:10,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:13:10,105 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:10,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:10,106 INFO L85 PathProgramCache]: Analyzing trace with hash 1446232413, now seen corresponding path program 1 times [2024-11-13 13:13:10,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:10,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1906424294] [2024-11-13 13:13:10,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:10,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:10,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:10,486 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:13:10,487 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:10,487 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1906424294] [2024-11-13 13:13:10,487 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1906424294] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:10,487 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:10,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:13:10,488 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91640014] [2024-11-13 13:13:10,488 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:10,488 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:10,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:10,489 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:10,489 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:10,489 INFO L87 Difference]: Start difference. First operand 4418 states and 5105 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:13,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:13,450 INFO L93 Difference]: Finished difference Result 11392 states and 13362 transitions. [2024-11-13 13:13:13,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:13,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 187 [2024-11-13 13:13:13,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:13,475 INFO L225 Difference]: With dead ends: 11392 [2024-11-13 13:13:13,475 INFO L226 Difference]: Without dead ends: 6976 [2024-11-13 13:13:13,480 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 [2024-11-13 13:13:13,481 INFO L432 NwaCegarLoop]: 725 mSDtfsCounter, 496 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1136 mSolverCounterSat, 306 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 496 SdHoareTripleChecker+Valid, 783 SdHoareTripleChecker+Invalid, 1442 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 306 IncrementalHoareTripleChecker+Valid, 1136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:13,482 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [496 Valid, 783 Invalid, 1442 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [306 Valid, 1136 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 13:13:13,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6976 states. [2024-11-13 13:13:13,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6976 to 6976. [2024-11-13 13:13:13,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6976 states, 6975 states have (on average 1.1407885304659497) internal successors, (7957), 6975 states have internal predecessors, (7957), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:13,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6976 states to 6976 states and 7957 transitions. [2024-11-13 13:13:13,632 INFO L78 Accepts]: Start accepts. Automaton has 6976 states and 7957 transitions. Word has length 187 [2024-11-13 13:13:13,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:13,632 INFO L471 AbstractCegarLoop]: Abstraction has 6976 states and 7957 transitions. [2024-11-13 13:13:13,633 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:13,633 INFO L276 IsEmpty]: Start isEmpty. Operand 6976 states and 7957 transitions. [2024-11-13 13:13:13,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-11-13 13:13:13,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:13,638 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:13,638 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:13:13,638 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:13,639 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:13,639 INFO L85 PathProgramCache]: Analyzing trace with hash -2069434078, now seen corresponding path program 1 times [2024-11-13 13:13:13,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:13,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2001790335] [2024-11-13 13:13:13,640 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:13,640 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:13,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:13,862 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 70 trivial. 0 not checked. [2024-11-13 13:13:13,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2001790335] [2024-11-13 13:13:13,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2001790335] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:13,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:13,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:13:13,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [710107123] [2024-11-13 13:13:13,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:13,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:13,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:13,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:13,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:13,865 INFO L87 Difference]: Start difference. First operand 6976 states and 7957 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:16,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:16,972 INFO L93 Difference]: Finished difference Result 16920 states and 19482 transitions. [2024-11-13 13:13:16,972 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:16,973 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 189 [2024-11-13 13:13:16,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:17,004 INFO L225 Difference]: With dead ends: 16920 [2024-11-13 13:13:17,004 INFO L226 Difference]: Without dead ends: 9945 [2024-11-13 13:13:17,011 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 [2024-11-13 13:13:17,012 INFO L432 NwaCegarLoop]: 382 mSDtfsCounter, 416 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 1215 mSolverCounterSat, 274 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 416 SdHoareTripleChecker+Valid, 444 SdHoareTripleChecker+Invalid, 1489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 274 IncrementalHoareTripleChecker+Valid, 1215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:17,013 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [416 Valid, 444 Invalid, 1489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [274 Valid, 1215 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 13:13:17,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9945 states. [2024-11-13 13:13:17,151 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9945 to 6949. [2024-11-13 13:13:17,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6949 states, 6948 states have (on average 1.1393206678180772) internal successors, (7916), 6948 states have internal predecessors, (7916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:17,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6949 states to 6949 states and 7916 transitions. [2024-11-13 13:13:17,187 INFO L78 Accepts]: Start accepts. Automaton has 6949 states and 7916 transitions. Word has length 189 [2024-11-13 13:13:17,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:17,187 INFO L471 AbstractCegarLoop]: Abstraction has 6949 states and 7916 transitions. [2024-11-13 13:13:17,191 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 3 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:17,191 INFO L276 IsEmpty]: Start isEmpty. Operand 6949 states and 7916 transitions. [2024-11-13 13:13:17,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-13 13:13:17,199 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:17,200 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:17,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:13:17,200 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:17,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:17,200 INFO L85 PathProgramCache]: Analyzing trace with hash -1158574404, now seen corresponding path program 1 times [2024-11-13 13:13:17,200 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:17,200 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502236844] [2024-11-13 13:13:17,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:17,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:17,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:17,707 INFO L134 CoverageAnalysis]: Checked inductivity of 147 backedges. 65 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-13 13:13:17,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:17,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502236844] [2024-11-13 13:13:17,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502236844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:17,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:17,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:13:17,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206216653] [2024-11-13 13:13:17,709 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:17,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:17,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:17,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:17,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:17,711 INFO L87 Difference]: Start difference. First operand 6949 states and 7916 transitions. Second operand has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:20,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:20,824 INFO L93 Difference]: Finished difference Result 15606 states and 17774 transitions. [2024-11-13 13:13:20,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:20,825 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 255 [2024-11-13 13:13:20,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:20,854 INFO L225 Difference]: With dead ends: 15606 [2024-11-13 13:13:20,854 INFO L226 Difference]: Without dead ends: 8659 [2024-11-13 13:13:20,859 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 [2024-11-13 13:13:20,860 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 401 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 401 SdHoareTripleChecker+Valid, 894 SdHoareTripleChecker+Invalid, 1409 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:20,860 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [401 Valid, 894 Invalid, 1409 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 13:13:20,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8659 states. [2024-11-13 13:13:20,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8659 to 8226. [2024-11-13 13:13:20,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8226 states, 8225 states have (on average 1.132644376899696) internal successors, (9316), 8225 states have internal predecessors, (9316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:20,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8226 states to 8226 states and 9316 transitions. [2024-11-13 13:13:20,994 INFO L78 Accepts]: Start accepts. Automaton has 8226 states and 9316 transitions. Word has length 255 [2024-11-13 13:13:20,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:20,995 INFO L471 AbstractCegarLoop]: Abstraction has 8226 states and 9316 transitions. [2024-11-13 13:13:20,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.0) internal successors, (174), 3 states have internal predecessors, (174), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:20,996 INFO L276 IsEmpty]: Start isEmpty. Operand 8226 states and 9316 transitions. [2024-11-13 13:13:21,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 268 [2024-11-13 13:13:21,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:21,002 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:21,002 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:13:21,002 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:21,003 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:21,003 INFO L85 PathProgramCache]: Analyzing trace with hash -894684992, now seen corresponding path program 1 times [2024-11-13 13:13:21,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:21,003 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651810166] [2024-11-13 13:13:21,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:21,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:21,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:21,334 INFO L134 CoverageAnalysis]: Checked inductivity of 312 backedges. 198 proven. 0 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-13 13:13:21,334 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:21,334 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651810166] [2024-11-13 13:13:21,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651810166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:21,334 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:21,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:13:21,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [737647029] [2024-11-13 13:13:21,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:21,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:21,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:21,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:21,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:21,338 INFO L87 Difference]: Start difference. First operand 8226 states and 9316 transitions. Second operand has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:24,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:24,108 INFO L93 Difference]: Finished difference Result 19418 states and 22175 transitions. [2024-11-13 13:13:24,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:24,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 267 [2024-11-13 13:13:24,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:24,142 INFO L225 Difference]: With dead ends: 19418 [2024-11-13 13:13:24,142 INFO L226 Difference]: Without dead ends: 10344 [2024-11-13 13:13:24,150 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 [2024-11-13 13:13:24,153 INFO L432 NwaCegarLoop]: 778 mSDtfsCounter, 383 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1199 mSolverCounterSat, 258 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 383 SdHoareTripleChecker+Valid, 847 SdHoareTripleChecker+Invalid, 1457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 258 IncrementalHoareTripleChecker+Valid, 1199 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:24,153 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [383 Valid, 847 Invalid, 1457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [258 Valid, 1199 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 13:13:24,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10344 states. [2024-11-13 13:13:24,264 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10344 to 10344. [2024-11-13 13:13:24,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10344 states, 10343 states have (on average 1.1042250797640916) internal successors, (11421), 10343 states have internal predecessors, (11421), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:24,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10344 states to 10344 states and 11421 transitions. [2024-11-13 13:13:24,291 INFO L78 Accepts]: Start accepts. Automaton has 10344 states and 11421 transitions. Word has length 267 [2024-11-13 13:13:24,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:24,292 INFO L471 AbstractCegarLoop]: Abstraction has 10344 states and 11421 transitions. [2024-11-13 13:13:24,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 51.666666666666664) internal successors, (155), 3 states have internal predecessors, (155), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:24,292 INFO L276 IsEmpty]: Start isEmpty. Operand 10344 states and 11421 transitions. [2024-11-13 13:13:24,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 308 [2024-11-13 13:13:24,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:24,299 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:24,300 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:13:24,300 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:24,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:24,305 INFO L85 PathProgramCache]: Analyzing trace with hash -514263909, now seen corresponding path program 1 times [2024-11-13 13:13:24,305 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:24,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829244569] [2024-11-13 13:13:24,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:24,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:24,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:24,581 INFO L134 CoverageAnalysis]: Checked inductivity of 346 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 248 trivial. 0 not checked. [2024-11-13 13:13:24,581 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:24,581 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829244569] [2024-11-13 13:13:24,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829244569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:24,582 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:24,582 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:13:24,582 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493491859] [2024-11-13 13:13:24,582 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:24,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:24,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:24,583 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:24,583 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:24,583 INFO L87 Difference]: Start difference. First operand 10344 states and 11421 transitions. Second operand has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:27,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:27,749 INFO L93 Difference]: Finished difference Result 24095 states and 26821 transitions. [2024-11-13 13:13:27,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:27,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 307 [2024-11-13 13:13:27,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:27,774 INFO L225 Difference]: With dead ends: 24095 [2024-11-13 13:13:27,774 INFO L226 Difference]: Without dead ends: 12876 [2024-11-13 13:13:27,784 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 [2024-11-13 13:13:27,785 INFO L432 NwaCegarLoop]: 609 mSDtfsCounter, 510 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 1183 mSolverCounterSat, 348 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 510 SdHoareTripleChecker+Valid, 639 SdHoareTripleChecker+Invalid, 1531 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 348 IncrementalHoareTripleChecker+Valid, 1183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:27,785 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [510 Valid, 639 Invalid, 1531 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [348 Valid, 1183 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 13:13:27,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12876 states. [2024-11-13 13:13:27,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12876 to 12446. [2024-11-13 13:13:27,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12446 states, 12445 states have (on average 1.1030132583366814) internal successors, (13727), 12445 states have internal predecessors, (13727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:27,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12446 states to 12446 states and 13727 transitions. [2024-11-13 13:13:27,962 INFO L78 Accepts]: Start accepts. Automaton has 12446 states and 13727 transitions. Word has length 307 [2024-11-13 13:13:27,962 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:27,962 INFO L471 AbstractCegarLoop]: Abstraction has 12446 states and 13727 transitions. [2024-11-13 13:13:27,963 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.666666666666664) internal successors, (143), 3 states have internal predecessors, (143), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:27,963 INFO L276 IsEmpty]: Start isEmpty. Operand 12446 states and 13727 transitions. [2024-11-13 13:13:27,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 375 [2024-11-13 13:13:27,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:27,974 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:27,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:13:27,974 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:27,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:27,975 INFO L85 PathProgramCache]: Analyzing trace with hash 1554835724, now seen corresponding path program 1 times [2024-11-13 13:13:27,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:27,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84354954] [2024-11-13 13:13:27,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:27,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:28,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:28,546 INFO L134 CoverageAnalysis]: Checked inductivity of 32 backedges. 32 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:13:28,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:28,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84354954] [2024-11-13 13:13:28,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [84354954] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:28,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:28,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:13:28,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228815911] [2024-11-13 13:13:28,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:28,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:13:28,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:28,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:13:28,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:13:28,551 INFO L87 Difference]: Start difference. First operand 12446 states and 13727 transitions. Second operand has 4 states, 4 states have (on average 93.5) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:32,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:32,353 INFO L93 Difference]: Finished difference Result 34282 states and 37820 transitions. [2024-11-13 13:13:32,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:13:32,354 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 374 [2024-11-13 13:13:32,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:32,387 INFO L225 Difference]: With dead ends: 34282 [2024-11-13 13:13:32,387 INFO L226 Difference]: Without dead ends: 21413 [2024-11-13 13:13:32,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:13:32,401 INFO L432 NwaCegarLoop]: 262 mSDtfsCounter, 536 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 2404 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 333 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 2404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:32,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 333 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 2404 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-13 13:13:32,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21413 states. [2024-11-13 13:13:32,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21413 to 20966. [2024-11-13 13:13:32,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20966 states, 20965 states have (on average 1.0958263772954926) internal successors, (22974), 20965 states have internal predecessors, (22974), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:32,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20966 states to 20966 states and 22974 transitions. [2024-11-13 13:13:32,658 INFO L78 Accepts]: Start accepts. Automaton has 20966 states and 22974 transitions. Word has length 374 [2024-11-13 13:13:32,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:32,659 INFO L471 AbstractCegarLoop]: Abstraction has 20966 states and 22974 transitions. [2024-11-13 13:13:32,660 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 93.5) internal successors, (374), 3 states have internal predecessors, (374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:32,660 INFO L276 IsEmpty]: Start isEmpty. Operand 20966 states and 22974 transitions. [2024-11-13 13:13:32,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2024-11-13 13:13:32,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:32,672 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:32,672 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:13:32,672 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:32,673 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:32,673 INFO L85 PathProgramCache]: Analyzing trace with hash 1684557554, now seen corresponding path program 1 times [2024-11-13 13:13:32,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:32,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580674835] [2024-11-13 13:13:32,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:32,674 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:33,367 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 98 proven. 0 refuted. 0 times theorem prover too weak. 269 trivial. 0 not checked. [2024-11-13 13:13:33,367 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:33,367 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580674835] [2024-11-13 13:13:33,367 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1580674835] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:33,367 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:33,367 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:13:33,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [839341884] [2024-11-13 13:13:33,368 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:33,369 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:33,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:33,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:33,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:33,370 INFO L87 Difference]: Start difference. First operand 20966 states and 22974 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:36,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:36,064 INFO L93 Difference]: Finished difference Result 48758 states and 53485 transitions. [2024-11-13 13:13:36,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:36,065 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 378 [2024-11-13 13:13:36,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:36,109 INFO L225 Difference]: With dead ends: 48758 [2024-11-13 13:13:36,109 INFO L226 Difference]: Without dead ends: 27794 [2024-11-13 13:13:36,126 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 [2024-11-13 13:13:36,127 INFO L432 NwaCegarLoop]: 719 mSDtfsCounter, 428 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1322 mSolverCounterSat, 106 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 1428 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 106 IncrementalHoareTripleChecker+Valid, 1322 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:36,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 770 Invalid, 1428 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [106 Valid, 1322 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 13:13:36,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27794 states. [2024-11-13 13:13:36,602 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27794 to 26926. [2024-11-13 13:13:36,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26926 states, 26925 states have (on average 1.0935561745589601) internal successors, (29444), 26925 states have internal predecessors, (29444), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:36,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26926 states to 26926 states and 29444 transitions. [2024-11-13 13:13:36,662 INFO L78 Accepts]: Start accepts. Automaton has 26926 states and 29444 transitions. Word has length 378 [2024-11-13 13:13:36,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:36,663 INFO L471 AbstractCegarLoop]: Abstraction has 26926 states and 29444 transitions. [2024-11-13 13:13:36,664 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:36,664 INFO L276 IsEmpty]: Start isEmpty. Operand 26926 states and 29444 transitions. [2024-11-13 13:13:36,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 595 [2024-11-13 13:13:36,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:36,690 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:36,690 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:13:36,691 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:36,691 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:36,691 INFO L85 PathProgramCache]: Analyzing trace with hash -1677087408, now seen corresponding path program 1 times [2024-11-13 13:13:36,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:36,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1909758418] [2024-11-13 13:13:36,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:36,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:36,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:37,969 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 284 proven. 82 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-13 13:13:37,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:37,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1909758418] [2024-11-13 13:13:37,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1909758418] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:13:37,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163796067] [2024-11-13 13:13:37,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:37,970 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:37,970 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:13:37,974 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:13:37,977 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:13:38,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:38,338 INFO L255 TraceCheckSpWp]: Trace formula consists of 730 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:13:38,368 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:39,271 INFO L134 CoverageAnalysis]: Checked inductivity of 399 backedges. 317 proven. 0 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-13 13:13:39,271 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:13:39,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163796067] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:39,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:13:39,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [3] total 6 [2024-11-13 13:13:39,272 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1429119605] [2024-11-13 13:13:39,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:39,273 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:13:39,273 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:39,274 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:13:39,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:13:39,275 INFO L87 Difference]: Start difference. First operand 26926 states and 29444 transitions. Second operand has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:43,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:43,630 INFO L93 Difference]: Finished difference Result 72621 states and 79874 transitions. [2024-11-13 13:13:43,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:13:43,631 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 594 [2024-11-13 13:13:43,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:43,776 INFO L225 Difference]: With dead ends: 72621 [2024-11-13 13:13:43,776 INFO L226 Difference]: Without dead ends: 44418 [2024-11-13 13:13:43,788 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 596 GetRequests, 592 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:13:43,790 INFO L432 NwaCegarLoop]: 93 mSDtfsCounter, 617 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2491 mSolverCounterSat, 483 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 617 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 2974 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 483 IncrementalHoareTripleChecker+Valid, 2491 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:43,791 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [617 Valid, 175 Invalid, 2974 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [483 Valid, 2491 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-13 13:13:43,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44418 states. [2024-11-13 13:13:44,249 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44418 to 41830. [2024-11-13 13:13:44,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41830 states, 41829 states have (on average 1.0996676946615984) internal successors, (45998), 41829 states have internal predecessors, (45998), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:44,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41830 states to 41830 states and 45998 transitions. [2024-11-13 13:13:44,359 INFO L78 Accepts]: Start accepts. Automaton has 41830 states and 45998 transitions. Word has length 594 [2024-11-13 13:13:44,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:44,360 INFO L471 AbstractCegarLoop]: Abstraction has 41830 states and 45998 transitions. [2024-11-13 13:13:44,361 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 128.25) internal successors, (513), 4 states have internal predecessors, (513), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:44,361 INFO L276 IsEmpty]: Start isEmpty. Operand 41830 states and 45998 transitions. [2024-11-13 13:13:44,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 680 [2024-11-13 13:13:44,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:44,399 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:44,425 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:13:44,600 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 13:13:44,600 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:44,601 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:44,601 INFO L85 PathProgramCache]: Analyzing trace with hash -1564533099, now seen corresponding path program 1 times [2024-11-13 13:13:44,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:44,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355867256] [2024-11-13 13:13:44,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:44,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:45,286 INFO L134 CoverageAnalysis]: Checked inductivity of 777 backedges. 499 proven. 0 refuted. 0 times theorem prover too weak. 278 trivial. 0 not checked. [2024-11-13 13:13:45,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:45,287 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355867256] [2024-11-13 13:13:45,287 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355867256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:45,287 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:45,287 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:13:45,287 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [61209022] [2024-11-13 13:13:45,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:45,289 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:45,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:45,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:45,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:45,292 INFO L87 Difference]: Start difference. First operand 41830 states and 45998 transitions. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:47,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:47,975 INFO L93 Difference]: Finished difference Result 92167 states and 101918 transitions. [2024-11-13 13:13:47,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:47,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 679 [2024-11-13 13:13:47,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:48,037 INFO L225 Difference]: With dead ends: 92167 [2024-11-13 13:13:48,037 INFO L226 Difference]: Without dead ends: 50339 [2024-11-13 13:13:48,067 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 [2024-11-13 13:13:48,067 INFO L432 NwaCegarLoop]: 651 mSDtfsCounter, 486 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 1146 mSolverCounterSat, 177 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 486 SdHoareTripleChecker+Valid, 695 SdHoareTripleChecker+Invalid, 1323 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 177 IncrementalHoareTripleChecker+Valid, 1146 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:48,068 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [486 Valid, 695 Invalid, 1323 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [177 Valid, 1146 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 13:13:48,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50339 states. [2024-11-13 13:13:48,915 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50339 to 50333. [2024-11-13 13:13:48,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50333 states, 50332 states have (on average 1.0999761583088294) internal successors, (55364), 50332 states have internal predecessors, (55364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:49,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50333 states to 50333 states and 55364 transitions. [2024-11-13 13:13:49,208 INFO L78 Accepts]: Start accepts. Automaton has 50333 states and 55364 transitions. Word has length 679 [2024-11-13 13:13:49,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:49,208 INFO L471 AbstractCegarLoop]: Abstraction has 50333 states and 55364 transitions. [2024-11-13 13:13:49,209 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:49,209 INFO L276 IsEmpty]: Start isEmpty. Operand 50333 states and 55364 transitions. [2024-11-13 13:13:49,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 764 [2024-11-13 13:13:49,237 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:49,237 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:49,237 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:13:49,237 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:49,238 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:49,238 INFO L85 PathProgramCache]: Analyzing trace with hash 188291190, now seen corresponding path program 1 times [2024-11-13 13:13:49,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:49,238 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [206248748] [2024-11-13 13:13:49,238 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:49,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:49,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:50,008 INFO L134 CoverageAnalysis]: Checked inductivity of 746 backedges. 444 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-13 13:13:50,008 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:50,008 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [206248748] [2024-11-13 13:13:50,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [206248748] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:50,009 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:13:50,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:13:50,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [890022335] [2024-11-13 13:13:50,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:50,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:50,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:50,013 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:50,013 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:13:50,013 INFO L87 Difference]: Start difference. First operand 50333 states and 55364 transitions. Second operand has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:52,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:52,800 INFO L93 Difference]: Finished difference Result 107062 states and 117826 transitions. [2024-11-13 13:13:52,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:52,801 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 763 [2024-11-13 13:13:52,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:52,856 INFO L225 Difference]: With dead ends: 107062 [2024-11-13 13:13:52,857 INFO L226 Difference]: Without dead ends: 56731 [2024-11-13 13:13:52,876 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 [2024-11-13 13:13:52,876 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 476 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1232 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 476 SdHoareTripleChecker+Valid, 279 SdHoareTripleChecker+Invalid, 1408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 1232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:52,877 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [476 Valid, 279 Invalid, 1408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 1232 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 13:13:52,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56731 states. [2024-11-13 13:13:53,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56731 to 46065. [2024-11-13 13:13:53,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46065 states, 46064 states have (on average 1.1018148662730114) internal successors, (50754), 46064 states have internal predecessors, (50754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:53,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46065 states to 46065 states and 50754 transitions. [2024-11-13 13:13:53,707 INFO L78 Accepts]: Start accepts. Automaton has 46065 states and 50754 transitions. Word has length 763 [2024-11-13 13:13:53,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:13:53,708 INFO L471 AbstractCegarLoop]: Abstraction has 46065 states and 50754 transitions. [2024-11-13 13:13:53,708 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 182.0) internal successors, (546), 3 states have internal predecessors, (546), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:53,709 INFO L276 IsEmpty]: Start isEmpty. Operand 46065 states and 50754 transitions. [2024-11-13 13:13:53,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 814 [2024-11-13 13:13:53,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:13:53,748 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:13:53,748 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:13:53,749 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:13:53,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:13:53,749 INFO L85 PathProgramCache]: Analyzing trace with hash 1340459994, now seen corresponding path program 1 times [2024-11-13 13:13:53,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:13:53,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454147376] [2024-11-13 13:13:53,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:53,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:13:53,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:55,930 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 462 proven. 34 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-13 13:13:55,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:13:55,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454147376] [2024-11-13 13:13:55,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454147376] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:13:55,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [701707647] [2024-11-13 13:13:55,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:13:55,931 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:13:55,931 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:13:55,933 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:13:55,936 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:13:56,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:13:56,401 INFO L255 TraceCheckSpWp]: Trace formula consists of 950 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:13:56,417 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:13:57,333 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 462 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-13 13:13:57,333 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:13:57,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [701707647] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:13:57,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:13:57,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-13 13:13:57,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [852126843] [2024-11-13 13:13:57,334 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:13:57,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:13:57,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:13:57,337 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:13:57,338 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:13:57,339 INFO L87 Difference]: Start difference. First operand 46065 states and 50754 transitions. Second operand has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:13:59,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:13:59,811 INFO L93 Difference]: Finished difference Result 92125 states and 101503 transitions. [2024-11-13 13:13:59,811 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:13:59,812 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 813 [2024-11-13 13:13:59,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:13:59,869 INFO L225 Difference]: With dead ends: 92125 [2024-11-13 13:13:59,869 INFO L226 Difference]: Without dead ends: 46061 [2024-11-13 13:13:59,891 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 819 GetRequests, 813 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:13:59,892 INFO L432 NwaCegarLoop]: 635 mSDtfsCounter, 116 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 691 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:13:59,892 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 691 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 13:13:59,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46061 states. [2024-11-13 13:14:00,345 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46061 to 44783. [2024-11-13 13:14:00,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44783 states, 44782 states have (on average 1.0748515028359609) internal successors, (48134), 44782 states have internal predecessors, (48134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:00,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44783 states to 44783 states and 48134 transitions. [2024-11-13 13:14:00,621 INFO L78 Accepts]: Start accepts. Automaton has 44783 states and 48134 transitions. Word has length 813 [2024-11-13 13:14:00,622 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:00,623 INFO L471 AbstractCegarLoop]: Abstraction has 44783 states and 48134 transitions. [2024-11-13 13:14:00,623 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 233.0) internal successors, (699), 3 states have internal predecessors, (699), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:00,623 INFO L276 IsEmpty]: Start isEmpty. Operand 44783 states and 48134 transitions. [2024-11-13 13:14:00,659 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 817 [2024-11-13 13:14:00,659 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:00,660 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:00,685 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:14:00,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_584debfd-58c5-468b-88a2-3333b0c7bf30/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 13:14:00,865 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:00,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:00,865 INFO L85 PathProgramCache]: Analyzing trace with hash 1946948103, now seen corresponding path program 1 times [2024-11-13 13:14:00,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:00,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011961867] [2024-11-13 13:14:00,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:00,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:01,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:01,593 INFO L134 CoverageAnalysis]: Checked inductivity of 827 backedges. 525 proven. 0 refuted. 0 times theorem prover too weak. 302 trivial. 0 not checked. [2024-11-13 13:14:01,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:01,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011961867] [2024-11-13 13:14:01,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011961867] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:01,594 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:01,594 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:01,594 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908432667] [2024-11-13 13:14:01,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:01,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:14:01,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:01,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:14:01,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:01,597 INFO L87 Difference]: Start difference. First operand 44783 states and 48134 transitions. Second operand has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:04,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:04,039 INFO L93 Difference]: Finished difference Result 92970 states and 100057 transitions. [2024-11-13 13:14:04,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:14:04,040 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 816 [2024-11-13 13:14:04,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:04,075 INFO L225 Difference]: With dead ends: 92970 [2024-11-13 13:14:04,075 INFO L226 Difference]: Without dead ends: 48189 [2024-11-13 13:14:04,091 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 [2024-11-13 13:14:04,091 INFO L432 NwaCegarLoop]: 288 mSDtfsCounter, 455 mSDsluCounter, 51 mSDsCounter, 0 mSdLazyCounter, 1162 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 339 SdHoareTripleChecker+Invalid, 1357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:04,091 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 339 Invalid, 1357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1162 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 13:14:04,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48189 states. [2024-11-13 13:14:04,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48189 to 43502. [2024-11-13 13:14:04,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43502 states, 43501 states have (on average 1.0710558377968322) internal successors, (46592), 43501 states have internal predecessors, (46592), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:04,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43502 states to 43502 states and 46592 transitions. [2024-11-13 13:14:04,666 INFO L78 Accepts]: Start accepts. Automaton has 43502 states and 46592 transitions. Word has length 816 [2024-11-13 13:14:04,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:04,667 INFO L471 AbstractCegarLoop]: Abstraction has 43502 states and 46592 transitions. [2024-11-13 13:14:04,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 199.66666666666666) internal successors, (599), 3 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:04,667 INFO L276 IsEmpty]: Start isEmpty. Operand 43502 states and 46592 transitions. [2024-11-13 13:14:04,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 843 [2024-11-13 13:14:04,705 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:04,706 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:04,706 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:14:04,706 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:04,706 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:04,707 INFO L85 PathProgramCache]: Analyzing trace with hash -903509217, now seen corresponding path program 1 times [2024-11-13 13:14:04,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:04,707 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516119827] [2024-11-13 13:14:04,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:04,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:04,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:05,984 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 131 proven. 0 refuted. 0 times theorem prover too weak. 649 trivial. 0 not checked. [2024-11-13 13:14:05,985 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:05,985 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516119827] [2024-11-13 13:14:05,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [516119827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:05,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:05,986 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:05,986 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [910302888] [2024-11-13 13:14:05,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:05,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:14:05,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:05,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:14:05,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:05,989 INFO L87 Difference]: Start difference. First operand 43502 states and 46592 transitions. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:08,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:08,764 INFO L93 Difference]: Finished difference Result 95516 states and 102506 transitions. [2024-11-13 13:14:08,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:14:08,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 842 [2024-11-13 13:14:08,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:08,819 INFO L225 Difference]: With dead ends: 95516 [2024-11-13 13:14:08,819 INFO L226 Difference]: Without dead ends: 51166 [2024-11-13 13:14:08,841 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 [2024-11-13 13:14:08,841 INFO L432 NwaCegarLoop]: 700 mSDtfsCounter, 432 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1217 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 432 SdHoareTripleChecker+Valid, 758 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1217 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:08,842 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [432 Valid, 758 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1217 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:14:08,880 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51166 states. [2024-11-13 13:14:09,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51166 to 50732. [2024-11-13 13:14:09,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50732 states, 50731 states have (on average 1.06670477617236) internal successors, (54115), 50731 states have internal predecessors, (54115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:09,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50732 states to 50732 states and 54115 transitions. [2024-11-13 13:14:09,587 INFO L78 Accepts]: Start accepts. Automaton has 50732 states and 54115 transitions. Word has length 842 [2024-11-13 13:14:09,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:09,588 INFO L471 AbstractCegarLoop]: Abstraction has 50732 states and 54115 transitions. [2024-11-13 13:14:09,588 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:09,588 INFO L276 IsEmpty]: Start isEmpty. Operand 50732 states and 54115 transitions. [2024-11-13 13:14:09,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 901 [2024-11-13 13:14:09,634 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:09,635 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:09,636 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:14:09,636 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:09,638 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:09,639 INFO L85 PathProgramCache]: Analyzing trace with hash -604770946, now seen corresponding path program 1 times [2024-11-13 13:14:09,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:09,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [865482634] [2024-11-13 13:14:09,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:09,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:09,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:10,842 INFO L134 CoverageAnalysis]: Checked inductivity of 1304 backedges. 721 proven. 0 refuted. 0 times theorem prover too weak. 583 trivial. 0 not checked. [2024-11-13 13:14:10,842 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:10,842 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [865482634] [2024-11-13 13:14:10,842 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [865482634] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:10,842 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:10,843 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:14:10,843 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [948323708] [2024-11-13 13:14:10,843 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:10,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:10,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:10,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:10,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:10,846 INFO L87 Difference]: Start difference. First operand 50732 states and 54115 transitions. Second operand has 4 states, 4 states have (on average 147.25) internal successors, (589), 4 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:15,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:15,050 INFO L93 Difference]: Finished difference Result 123197 states and 131461 transitions. [2024-11-13 13:14:15,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:15,051 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 147.25) internal successors, (589), 4 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 900 [2024-11-13 13:14:15,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:15,119 INFO L225 Difference]: With dead ends: 123197 [2024-11-13 13:14:15,119 INFO L226 Difference]: Without dead ends: 72042 [2024-11-13 13:14:15,146 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:15,147 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 707 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 2381 mSolverCounterSat, 456 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 2837 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 456 IncrementalHoareTripleChecker+Valid, 2381 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:15,147 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 131 Invalid, 2837 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [456 Valid, 2381 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-13 13:14:15,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72042 states. [2024-11-13 13:14:16,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72042 to 66479. [2024-11-13 13:14:16,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66479 states, 66478 states have (on average 1.0684136105177653) internal successors, (71026), 66478 states have internal predecessors, (71026), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:16,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66479 states to 66479 states and 71026 transitions. [2024-11-13 13:14:16,173 INFO L78 Accepts]: Start accepts. Automaton has 66479 states and 71026 transitions. Word has length 900 [2024-11-13 13:14:16,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:16,174 INFO L471 AbstractCegarLoop]: Abstraction has 66479 states and 71026 transitions. [2024-11-13 13:14:16,174 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 147.25) internal successors, (589), 4 states have internal predecessors, (589), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:16,174 INFO L276 IsEmpty]: Start isEmpty. Operand 66479 states and 71026 transitions. [2024-11-13 13:14:16,226 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 911 [2024-11-13 13:14:16,226 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:16,227 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:16,227 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:14:16,227 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:16,227 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:16,227 INFO L85 PathProgramCache]: Analyzing trace with hash 2100583779, now seen corresponding path program 1 times [2024-11-13 13:14:16,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:16,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1751967421] [2024-11-13 13:14:16,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:16,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:16,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:17,312 INFO L134 CoverageAnalysis]: Checked inductivity of 979 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 847 trivial. 0 not checked. [2024-11-13 13:14:17,312 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:17,312 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1751967421] [2024-11-13 13:14:17,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1751967421] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:17,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:17,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:14:17,313 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176805425] [2024-11-13 13:14:17,313 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:17,314 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:14:17,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:17,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:14:17,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:17,316 INFO L87 Difference]: Start difference. First operand 66479 states and 71026 transitions. Second operand has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 2 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:18,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:18,724 INFO L93 Difference]: Finished difference Result 122300 states and 130550 transitions. [2024-11-13 13:14:18,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:14:18,725 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 2 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 910 [2024-11-13 13:14:18,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:18,795 INFO L225 Difference]: With dead ends: 122300 [2024-11-13 13:14:18,795 INFO L226 Difference]: Without dead ends: 55821 [2024-11-13 13:14:18,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:18,828 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 387 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:18,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 88 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 13:14:18,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55821 states. [2024-11-13 13:14:19,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55821 to 55382. [2024-11-13 13:14:19,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55382 states, 55381 states have (on average 1.0660334771853162) internal successors, (59038), 55381 states have internal predecessors, (59038), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:20,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55382 states to 55382 states and 59038 transitions. [2024-11-13 13:14:20,048 INFO L78 Accepts]: Start accepts. Automaton has 55382 states and 59038 transitions. Word has length 910 [2024-11-13 13:14:20,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:20,049 INFO L471 AbstractCegarLoop]: Abstraction has 55382 states and 59038 transitions. [2024-11-13 13:14:20,049 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 124.33333333333333) internal successors, (373), 2 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:20,049 INFO L276 IsEmpty]: Start isEmpty. Operand 55382 states and 59038 transitions. [2024-11-13 13:14:20,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 930 [2024-11-13 13:14:20,081 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:20,081 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:20,082 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:14:20,082 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:20,082 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:20,083 INFO L85 PathProgramCache]: Analyzing trace with hash -739723367, now seen corresponding path program 1 times [2024-11-13 13:14:20,083 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:20,083 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [652627633] [2024-11-13 13:14:20,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:20,083 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:20,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:21,063 INFO L134 CoverageAnalysis]: Checked inductivity of 892 backedges. 776 proven. 0 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-13 13:14:21,063 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:21,063 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [652627633] [2024-11-13 13:14:21,063 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [652627633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:21,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:21,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:21,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600897255] [2024-11-13 13:14:21,064 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:21,065 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:14:21,065 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:21,067 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:14:21,067 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:21,068 INFO L87 Difference]: Start difference. First operand 55382 states and 59038 transitions. Second operand has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:23,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:23,874 INFO L93 Difference]: Finished difference Result 123526 states and 132168 transitions. [2024-11-13 13:14:23,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:14:23,875 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 929 [2024-11-13 13:14:23,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:23,923 INFO L225 Difference]: With dead ends: 123526 [2024-11-13 13:14:23,923 INFO L226 Difference]: Without dead ends: 67721 [2024-11-13 13:14:23,936 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 [2024-11-13 13:14:23,936 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 204 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1154 mSolverCounterSat, 183 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 1337 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 183 IncrementalHoareTripleChecker+Valid, 1154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:23,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 603 Invalid, 1337 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [183 Valid, 1154 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 13:14:23,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67721 states. [2024-11-13 13:14:24,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67721 to 66861. [2024-11-13 13:14:24,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66861 states, 66860 states have (on average 1.0675291654202812) internal successors, (71375), 66860 states have internal predecessors, (71375), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:24,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66861 states to 66861 states and 71375 transitions. [2024-11-13 13:14:24,857 INFO L78 Accepts]: Start accepts. Automaton has 66861 states and 71375 transitions. Word has length 929 [2024-11-13 13:14:24,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:24,858 INFO L471 AbstractCegarLoop]: Abstraction has 66861 states and 71375 transitions. [2024-11-13 13:14:24,858 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 271.6666666666667) internal successors, (815), 3 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:24,858 INFO L276 IsEmpty]: Start isEmpty. Operand 66861 states and 71375 transitions. [2024-11-13 13:14:24,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2024-11-13 13:14:24,892 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:24,893 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:24,893 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 13:14:24,893 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:24,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:24,894 INFO L85 PathProgramCache]: Analyzing trace with hash -1108749980, now seen corresponding path program 1 times [2024-11-13 13:14:24,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:24,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [922465102] [2024-11-13 13:14:24,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:24,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:25,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:25,930 INFO L134 CoverageAnalysis]: Checked inductivity of 923 backedges. 132 proven. 0 refuted. 0 times theorem prover too weak. 791 trivial. 0 not checked. [2024-11-13 13:14:25,931 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:25,931 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [922465102] [2024-11-13 13:14:25,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [922465102] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:25,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:25,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:25,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812033833] [2024-11-13 13:14:25,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:25,932 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:14:25,932 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:25,933 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:14:25,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:25,933 INFO L87 Difference]: Start difference. First operand 66861 states and 71375 transitions. Second operand has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:28,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:28,453 INFO L93 Difference]: Finished difference Result 145650 states and 155618 transitions. [2024-11-13 13:14:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:14:28,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 950 [2024-11-13 13:14:28,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:28,707 INFO L225 Difference]: With dead ends: 145650 [2024-11-13 13:14:28,707 INFO L226 Difference]: Without dead ends: 78361 [2024-11-13 13:14:28,728 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 [2024-11-13 13:14:28,730 INFO L432 NwaCegarLoop]: 599 mSDtfsCounter, 445 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1191 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 632 SdHoareTripleChecker+Invalid, 1373 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 1191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:28,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 632 Invalid, 1373 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 1191 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 13:14:28,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78361 states. [2024-11-13 13:14:29,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78361 to 65583. [2024-11-13 13:14:29,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65583 states, 65582 states have (on average 1.0661004543929737) internal successors, (69917), 65582 states have internal predecessors, (69917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:29,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65583 states to 65583 states and 69917 transitions. [2024-11-13 13:14:29,873 INFO L78 Accepts]: Start accepts. Automaton has 65583 states and 69917 transitions. Word has length 950 [2024-11-13 13:14:29,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:29,879 INFO L471 AbstractCegarLoop]: Abstraction has 65583 states and 69917 transitions. [2024-11-13 13:14:29,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 147.0) internal successors, (441), 3 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:29,879 INFO L276 IsEmpty]: Start isEmpty. Operand 65583 states and 69917 transitions. [2024-11-13 13:14:29,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2024-11-13 13:14:29,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:29,937 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:29,937 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 13:14:29,937 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:29,938 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:29,938 INFO L85 PathProgramCache]: Analyzing trace with hash -496911082, now seen corresponding path program 1 times [2024-11-13 13:14:29,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:29,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1525368902] [2024-11-13 13:14:29,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:29,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:31,279 INFO L134 CoverageAnalysis]: Checked inductivity of 1067 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2024-11-13 13:14:31,279 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:31,280 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1525368902] [2024-11-13 13:14:31,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1525368902] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:31,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:31,280 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:31,280 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [414333068] [2024-11-13 13:14:31,280 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:31,281 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:14:31,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:31,282 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:14:31,282 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:31,283 INFO L87 Difference]: Start difference. First operand 65583 states and 69917 transitions. Second operand has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:33,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:33,779 INFO L93 Difference]: Finished difference Result 130738 states and 139375 transitions. [2024-11-13 13:14:33,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:14:33,780 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1002 [2024-11-13 13:14:33,781 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:33,849 INFO L225 Difference]: With dead ends: 130738 [2024-11-13 13:14:33,849 INFO L226 Difference]: Without dead ends: 65157 [2024-11-13 13:14:33,883 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 [2024-11-13 13:14:33,883 INFO L432 NwaCegarLoop]: 647 mSDtfsCounter, 274 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 1177 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 689 SdHoareTripleChecker+Invalid, 1266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 1177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:33,884 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 689 Invalid, 1266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 1177 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 13:14:33,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65157 states. [2024-11-13 13:14:34,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65157 to 63443. [2024-11-13 13:14:34,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63443 states, 63442 states have (on average 1.0655874657167177) internal successors, (67603), 63442 states have internal predecessors, (67603), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:34,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63443 states to 63443 states and 67603 transitions. [2024-11-13 13:14:34,772 INFO L78 Accepts]: Start accepts. Automaton has 63443 states and 67603 transitions. Word has length 1002 [2024-11-13 13:14:34,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:34,772 INFO L471 AbstractCegarLoop]: Abstraction has 63443 states and 67603 transitions. [2024-11-13 13:14:34,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 202.33333333333334) internal successors, (607), 3 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:34,773 INFO L276 IsEmpty]: Start isEmpty. Operand 63443 states and 67603 transitions. [2024-11-13 13:14:34,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1150 [2024-11-13 13:14:34,820 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:34,820 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:34,820 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-13 13:14:34,820 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:34,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:34,821 INFO L85 PathProgramCache]: Analyzing trace with hash -514102598, now seen corresponding path program 1 times [2024-11-13 13:14:34,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:34,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786285995] [2024-11-13 13:14:34,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:34,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:35,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:35,733 INFO L134 CoverageAnalysis]: Checked inductivity of 1453 backedges. 1150 proven. 0 refuted. 0 times theorem prover too weak. 303 trivial. 0 not checked. [2024-11-13 13:14:35,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:35,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786285995] [2024-11-13 13:14:35,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786285995] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:35,734 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:35,734 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:35,734 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046423527] [2024-11-13 13:14:35,734 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:35,735 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:14:35,735 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:35,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:14:35,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:35,736 INFO L87 Difference]: Start difference. First operand 63443 states and 67603 transitions. Second operand has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:37,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:37,655 INFO L93 Difference]: Finished difference Result 125605 states and 133876 transitions. [2024-11-13 13:14:37,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:14:37,656 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1149 [2024-11-13 13:14:37,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:37,728 INFO L225 Difference]: With dead ends: 125605 [2024-11-13 13:14:37,729 INFO L226 Difference]: Without dead ends: 62163 [2024-11-13 13:14:37,750 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 [2024-11-13 13:14:37,751 INFO L432 NwaCegarLoop]: 608 mSDtfsCounter, 115 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 115 SdHoareTripleChecker+Valid, 656 SdHoareTripleChecker+Invalid, 1109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:37,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [115 Valid, 656 Invalid, 1109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-13 13:14:37,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62163 states. [2024-11-13 13:14:38,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62163 to 62162. [2024-11-13 13:14:38,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62162 states, 62161 states have (on average 1.0660864529206415) internal successors, (66269), 62161 states have internal predecessors, (66269), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:38,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62162 states to 62162 states and 66269 transitions. [2024-11-13 13:14:38,521 INFO L78 Accepts]: Start accepts. Automaton has 62162 states and 66269 transitions. Word has length 1149 [2024-11-13 13:14:38,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:38,522 INFO L471 AbstractCegarLoop]: Abstraction has 62162 states and 66269 transitions. [2024-11-13 13:14:38,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 310.3333333333333) internal successors, (931), 3 states have internal predecessors, (931), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:38,523 INFO L276 IsEmpty]: Start isEmpty. Operand 62162 states and 66269 transitions. [2024-11-13 13:14:38,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1277 [2024-11-13 13:14:38,572 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:38,573 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:38,573 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-13 13:14:38,573 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:38,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:38,574 INFO L85 PathProgramCache]: Analyzing trace with hash -951799320, now seen corresponding path program 1 times [2024-11-13 13:14:38,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:38,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670822990] [2024-11-13 13:14:38,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:38,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:40,946 INFO L134 CoverageAnalysis]: Checked inductivity of 2223 backedges. 1411 proven. 0 refuted. 0 times theorem prover too weak. 812 trivial. 0 not checked. [2024-11-13 13:14:40,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:40,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670822990] [2024-11-13 13:14:40,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670822990] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:40,947 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:40,947 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:14:40,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693015137] [2024-11-13 13:14:40,947 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:40,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:40,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:40,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:40,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:40,951 INFO L87 Difference]: Start difference. First operand 62162 states and 66269 transitions. Second operand has 4 states, 4 states have (on average 184.25) internal successors, (737), 4 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:45,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:45,303 INFO L93 Difference]: Finished difference Result 139662 states and 148847 transitions. [2024-11-13 13:14:45,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:14:45,304 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 184.25) internal successors, (737), 4 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1276 [2024-11-13 13:14:45,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:45,350 INFO L225 Difference]: With dead ends: 139662 [2024-11-13 13:14:45,350 INFO L226 Difference]: Without dead ends: 77077 [2024-11-13 13:14:45,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:45,364 INFO L432 NwaCegarLoop]: 57 mSDtfsCounter, 584 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 2303 mSolverCounterSat, 356 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 584 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 2659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 356 IncrementalHoareTripleChecker+Valid, 2303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:45,364 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [584 Valid, 114 Invalid, 2659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [356 Valid, 2303 Invalid, 0 Unknown, 0 Unchecked, 3.8s Time] [2024-11-13 13:14:45,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77077 states. [2024-11-13 13:14:45,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77077 to 61312. [2024-11-13 13:14:45,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61312 states, 61311 states have (on average 1.0665622808305197) internal successors, (65392), 61311 states have internal predecessors, (65392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:46,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61312 states to 61312 states and 65392 transitions. [2024-11-13 13:14:46,032 INFO L78 Accepts]: Start accepts. Automaton has 61312 states and 65392 transitions. Word has length 1276 [2024-11-13 13:14:46,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:46,034 INFO L471 AbstractCegarLoop]: Abstraction has 61312 states and 65392 transitions. [2024-11-13 13:14:46,034 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 184.25) internal successors, (737), 4 states have internal predecessors, (737), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:46,034 INFO L276 IsEmpty]: Start isEmpty. Operand 61312 states and 65392 transitions. [2024-11-13 13:14:46,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1289 [2024-11-13 13:14:46,101 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:46,101 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:46,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 13:14:46,101 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:46,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:46,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1928475788, now seen corresponding path program 1 times [2024-11-13 13:14:46,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:46,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783113798] [2024-11-13 13:14:46,102 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:46,102 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:46,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:47,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2400 backedges. 1108 proven. 0 refuted. 0 times theorem prover too weak. 1292 trivial. 0 not checked. [2024-11-13 13:14:47,887 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:47,887 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783113798] [2024-11-13 13:14:47,887 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783113798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:47,887 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:47,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:14:47,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2080944865] [2024-11-13 13:14:47,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:47,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:14:47,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:47,890 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:14:47,890 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:14:47,890 INFO L87 Difference]: Start difference. First operand 61312 states and 65392 transitions. Second operand has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:50,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:14:50,391 INFO L93 Difference]: Finished difference Result 129857 states and 138737 transitions. [2024-11-13 13:14:50,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:14:50,392 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1288 [2024-11-13 13:14:50,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:14:50,467 INFO L225 Difference]: With dead ends: 129857 [2024-11-13 13:14:50,467 INFO L226 Difference]: Without dead ends: 67272 [2024-11-13 13:14:50,503 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 [2024-11-13 13:14:50,504 INFO L432 NwaCegarLoop]: 554 mSDtfsCounter, 148 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1119 mSolverCounterSat, 174 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 586 SdHoareTripleChecker+Invalid, 1293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 174 IncrementalHoareTripleChecker+Valid, 1119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:14:50,504 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 586 Invalid, 1293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [174 Valid, 1119 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 13:14:50,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67272 states. [2024-11-13 13:14:51,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67272 to 60037. [2024-11-13 13:14:51,220 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60037 states, 60036 states have (on average 1.0673762409221135) internal successors, (64081), 60036 states have internal predecessors, (64081), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:51,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60037 states to 60037 states and 64081 transitions. [2024-11-13 13:14:51,306 INFO L78 Accepts]: Start accepts. Automaton has 60037 states and 64081 transitions. Word has length 1288 [2024-11-13 13:14:51,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:14:51,307 INFO L471 AbstractCegarLoop]: Abstraction has 60037 states and 64081 transitions. [2024-11-13 13:14:51,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 228.66666666666666) internal successors, (686), 3 states have internal predecessors, (686), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:14:51,307 INFO L276 IsEmpty]: Start isEmpty. Operand 60037 states and 64081 transitions. [2024-11-13 13:14:51,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1443 [2024-11-13 13:14:51,370 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:14:51,371 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:14:51,371 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2024-11-13 13:14:51,371 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:14:51,371 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:14:51,372 INFO L85 PathProgramCache]: Analyzing trace with hash -607516462, now seen corresponding path program 1 times [2024-11-13 13:14:51,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:14:51,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1948974117] [2024-11-13 13:14:51,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:14:51,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:14:51,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:14:53,285 INFO L134 CoverageAnalysis]: Checked inductivity of 2333 backedges. 1193 proven. 0 refuted. 0 times theorem prover too weak. 1140 trivial. 0 not checked. [2024-11-13 13:14:53,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:14:53,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1948974117] [2024-11-13 13:14:53,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1948974117] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:14:53,286 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:14:53,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 13:14:53,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484089053] [2024-11-13 13:14:53,286 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:14:53,288 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:14:53,288 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:14:53,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:14:53,289 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:14:53,289 INFO L87 Difference]: Start difference. First operand 60037 states and 64081 transitions. Second operand has 4 states, 4 states have (on average 189.5) internal successors, (758), 4 states have internal predecessors, (758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)