./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label28.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_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/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_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label28.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/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_e6e5f2ad-292d-4bc5-a531-17a48bad61af/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 693604fe74726cb26a5402144f519fff0691b306c00b0b2405a8cfbcd5ac5921 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:28:03,741 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:28:03,863 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:28:03,877 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:28:03,878 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:28:03,911 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:28:03,912 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:28:03,912 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:28:03,912 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:28:03,912 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:28:03,913 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:28:03,913 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:28:03,913 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:28:03,914 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:28:03,914 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:28:03,914 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:28:03,914 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:28:03,914 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:28:03,915 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:28:03,915 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:28:03,915 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:28:03,915 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:28:03,915 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:28:03,916 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:28:03,916 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:28:03,916 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:28:03,916 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:28:03,916 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:28:03,916 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:28:03,917 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:28:03,917 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:28:03,917 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:28:03,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:28:03,917 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:28:03,917 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:28:03,917 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:28:03,917 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:28:03,917 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:28:03,917 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:28:03,918 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:28:03,918 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:28:03,918 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:28:03,918 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_e6e5f2ad-292d-4bc5-a531-17a48bad61af/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 -> 693604fe74726cb26a5402144f519fff0691b306c00b0b2405a8cfbcd5ac5921 [2024-11-13 13:28:04,277 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:28:04,294 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:28:04,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:28:04,298 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:28:04,299 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:28:04,301 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem18_label28.c Unable to find full path for "g++" [2024-11-13 13:28:06,581 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:28:07,480 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:28:07,481 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/sv-benchmarks/c/eca-rers2012/Problem18_label28.c [2024-11-13 13:28:07,526 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/data/ece6a923f/2ef81f7af21a48039d0e9a2efce5906b/FLAG138e76a43 [2024-11-13 13:28:07,553 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/data/ece6a923f/2ef81f7af21a48039d0e9a2efce5906b [2024-11-13 13:28:07,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:28:07,557 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:28:07,561 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:28:07,561 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:28:07,568 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:28:07,569 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:28:07" (1/1) ... [2024-11-13 13:28:07,571 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@225e23e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:07, skipping insertion in model container [2024-11-13 13:28:07,571 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:28:07" (1/1) ... [2024-11-13 13:28:07,706 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:28:08,062 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_e6e5f2ad-292d-4bc5-a531-17a48bad61af/sv-benchmarks/c/eca-rers2012/Problem18_label28.c[6667,6680] [2024-11-13 13:28:09,060 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:28:09,073 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:28:09,101 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_e6e5f2ad-292d-4bc5-a531-17a48bad61af/sv-benchmarks/c/eca-rers2012/Problem18_label28.c[6667,6680] [2024-11-13 13:28:09,571 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:28:09,598 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:28:09,599 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09 WrapperNode [2024-11-13 13:28:09,600 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:28:09,602 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:28:09,602 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:28:09,602 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:28:09,610 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:09,656 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:09,893 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4134 [2024-11-13 13:28:09,893 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:28:09,895 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:28:09,895 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:28:09,896 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:28:09,906 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:09,906 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:09,948 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:10,161 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 13:28:10,161 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:10,161 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:10,303 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:10,365 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:10,430 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:10,440 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:10,492 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:28:10,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:28:10,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:28:10,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:28:10,497 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (1/1) ... [2024-11-13 13:28:10,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:28:10,535 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:28:10,553 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:28:10,558 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:28:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:28:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:28:10,593 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:28:10,593 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:28:10,701 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:28:10,703 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:28:16,525 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-13 13:28:16,529 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:28:16,581 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:28:16,581 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:28:16,582 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:28:16 BoogieIcfgContainer [2024-11-13 13:28:16,582 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:28:16,585 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:28:16,585 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:28:16,591 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:28:16,592 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:28:07" (1/3) ... [2024-11-13 13:28:16,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cfb2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:28:16, skipping insertion in model container [2024-11-13 13:28:16,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:28:09" (2/3) ... [2024-11-13 13:28:16,593 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69cfb2ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:28:16, skipping insertion in model container [2024-11-13 13:28:16,593 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:28:16" (3/3) ... [2024-11-13 13:28:16,595 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label28.c [2024-11-13 13:28:16,621 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:28:16,625 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem18_label28.c that has 1 procedures, 757 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:28:16,741 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:28:16,762 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;@27068acd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:28:16,763 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:28:16,775 INFO L276 IsEmpty]: Start isEmpty. Operand has 757 states, 755 states have (on average 1.9125827814569536) internal successors, (1444), 756 states have internal predecessors, (1444), 0 states have call successors, (0), 0 states 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 13:28:16,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2024-11-13 13:28:16,786 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:16,787 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:28:16,788 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:16,793 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:16,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1474291506, now seen corresponding path program 1 times [2024-11-13 13:28:16,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:16,800 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086886383] [2024-11-13 13:28:16,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:16,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:16,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:17,399 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 13:28:17,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:17,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086886383] [2024-11-13 13:28:17,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1086886383] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:17,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:17,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:28:17,406 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199823574] [2024-11-13 13:28:17,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:17,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:28:17,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:17,442 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:28:17,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:28:17,449 INFO L87 Difference]: Start difference. First operand has 757 states, 755 states have (on average 1.9125827814569536) internal successors, (1444), 756 states have internal predecessors, (1444), 0 states have call successors, (0), 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 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 13:28:22,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:22,311 INFO L93 Difference]: Finished difference Result 2221 states and 4282 transitions. [2024-11-13 13:28:22,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:28:22,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 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 64 [2024-11-13 13:28:22,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:22,333 INFO L225 Difference]: With dead ends: 2221 [2024-11-13 13:28:22,333 INFO L226 Difference]: Without dead ends: 1384 [2024-11-13 13:28:22,339 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 13:28:22,342 INFO L432 NwaCegarLoop]: 478 mSDtfsCounter, 731 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 717 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 731 SdHoareTripleChecker+Valid, 487 SdHoareTripleChecker+Invalid, 2786 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 717 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:22,343 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [731 Valid, 487 Invalid, 2786 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [717 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 13:28:22,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-13 13:28:22,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2024-11-13 13:28:22,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 1.5994215473608098) internal successors, (2212), 1383 states have internal predecessors, (2212), 0 states have call successors, (0), 0 states 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 13:28:22,474 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 2212 transitions. [2024-11-13 13:28:22,477 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 2212 transitions. Word has length 64 [2024-11-13 13:28:22,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:22,478 INFO L471 AbstractCegarLoop]: Abstraction has 1384 states and 2212 transitions. [2024-11-13 13:28:22,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.333333333333332) internal successors, (64), 2 states have internal predecessors, (64), 0 states have call successors, (0), 0 states 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 13:28:22,478 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 2212 transitions. [2024-11-13 13:28:22,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-11-13 13:28:22,482 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:22,482 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, 2, 2, 2, 2, 2, 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] [2024-11-13 13:28:22,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:28:22,485 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:22,487 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:22,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1699610657, now seen corresponding path program 1 times [2024-11-13 13:28:22,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:22,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722699469] [2024-11-13 13:28:22,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:22,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:22,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:22,861 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:28:22,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:22,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722699469] [2024-11-13 13:28:22,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722699469] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:22,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:22,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:28:22,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496404785] [2024-11-13 13:28:22,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:22,865 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:28:22,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:22,867 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:28:22,867 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:28:22,867 INFO L87 Difference]: Start difference. First operand 1384 states and 2212 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 13:28:26,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:26,639 INFO L93 Difference]: Finished difference Result 4146 states and 6631 transitions. [2024-11-13 13:28:26,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:28:26,639 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 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 129 [2024-11-13 13:28:26,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:26,651 INFO L225 Difference]: With dead ends: 4146 [2024-11-13 13:28:26,651 INFO L226 Difference]: Without dead ends: 2764 [2024-11-13 13:28:26,653 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 13:28:26,654 INFO L432 NwaCegarLoop]: 524 mSDtfsCounter, 714 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 714 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:26,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [714 Valid, 529 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-13 13:28:26,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2024-11-13 13:28:26,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2764. [2024-11-13 13:28:26,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2763 states have (on average 1.3503438291711907) internal successors, (3731), 2763 states have internal predecessors, (3731), 0 states have call successors, (0), 0 states 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 13:28:26,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3731 transitions. [2024-11-13 13:28:26,738 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3731 transitions. Word has length 129 [2024-11-13 13:28:26,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:26,738 INFO L471 AbstractCegarLoop]: Abstraction has 2764 states and 3731 transitions. [2024-11-13 13:28:26,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states 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 13:28:26,739 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3731 transitions. [2024-11-13 13:28:26,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 248 [2024-11-13 13:28:26,744 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:26,744 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:26,745 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:28:26,745 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:26,745 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:26,746 INFO L85 PathProgramCache]: Analyzing trace with hash 34872986, now seen corresponding path program 1 times [2024-11-13 13:28:26,746 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:26,746 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165796829] [2024-11-13 13:28:26,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:26,746 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:26,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:27,851 INFO L134 CoverageAnalysis]: Checked inductivity of 187 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-13 13:28:27,852 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:27,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165796829] [2024-11-13 13:28:27,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165796829] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:27,853 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:27,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:28:27,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870071457] [2024-11-13 13:28:27,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:27,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:28:27,856 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:27,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:28:27,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:28:27,857 INFO L87 Difference]: Start difference. First operand 2764 states and 3731 transitions. Second operand has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 13:28:33,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:33,338 INFO L93 Difference]: Finished difference Result 7596 states and 9794 transitions. [2024-11-13 13:28:33,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:28:33,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 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 247 [2024-11-13 13:28:33,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:33,356 INFO L225 Difference]: With dead ends: 7596 [2024-11-13 13:28:33,357 INFO L226 Difference]: Without dead ends: 4834 [2024-11-13 13:28:33,360 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:28:33,361 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 1873 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4348 mSolverCounterSat, 117 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1873 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 4465 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 117 IncrementalHoareTripleChecker+Valid, 4348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:33,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1873 Valid, 641 Invalid, 4465 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [117 Valid, 4348 Invalid, 0 Unknown, 0 Unchecked, 5.2s Time] [2024-11-13 13:28:33,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4834 states. [2024-11-13 13:28:33,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4834 to 4144. [2024-11-13 13:28:33,451 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4144 states, 4143 states have (on average 1.2698527636978034) internal successors, (5261), 4143 states have internal predecessors, (5261), 0 states have call successors, (0), 0 states 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 13:28:33,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4144 states to 4144 states and 5261 transitions. [2024-11-13 13:28:33,460 INFO L78 Accepts]: Start accepts. Automaton has 4144 states and 5261 transitions. Word has length 247 [2024-11-13 13:28:33,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:33,461 INFO L471 AbstractCegarLoop]: Abstraction has 4144 states and 5261 transitions. [2024-11-13 13:28:33,461 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.5) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states 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 13:28:33,462 INFO L276 IsEmpty]: Start isEmpty. Operand 4144 states and 5261 transitions. [2024-11-13 13:28:33,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 364 [2024-11-13 13:28:33,468 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:33,468 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, 2, 2, 2, 2, 2, 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] [2024-11-13 13:28:33,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:28:33,469 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:33,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:33,470 INFO L85 PathProgramCache]: Analyzing trace with hash 780839287, now seen corresponding path program 1 times [2024-11-13 13:28:33,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:33,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723165827] [2024-11-13 13:28:33,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:33,471 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:33,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:33,966 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:28:33,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:33,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723165827] [2024-11-13 13:28:33,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723165827] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:33,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:33,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:28:33,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33178092] [2024-11-13 13:28:33,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:33,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:28:33,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:33,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:28:33,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:28:33,972 INFO L87 Difference]: Start difference. First operand 4144 states and 5261 transitions. Second operand has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states 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 13:28:37,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:37,350 INFO L93 Difference]: Finished difference Result 12426 states and 15778 transitions. [2024-11-13 13:28:37,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:28:37,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 363 [2024-11-13 13:28:37,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:37,376 INFO L225 Difference]: With dead ends: 12426 [2024-11-13 13:28:37,377 INFO L226 Difference]: Without dead ends: 8284 [2024-11-13 13:28:37,382 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 13:28:37,383 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 659 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1991 mSolverCounterSat, 991 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 659 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 2982 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 991 IncrementalHoareTripleChecker+Valid, 1991 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:37,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [659 Valid, 148 Invalid, 2982 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [991 Valid, 1991 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 13:28:37,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8284 states. [2024-11-13 13:28:37,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8284 to 7594. [2024-11-13 13:28:37,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7594 states, 7593 states have (on average 1.2641907019623337) internal successors, (9599), 7593 states have internal predecessors, (9599), 0 states have call successors, (0), 0 states 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 13:28:37,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7594 states to 7594 states and 9599 transitions. [2024-11-13 13:28:37,585 INFO L78 Accepts]: Start accepts. Automaton has 7594 states and 9599 transitions. Word has length 363 [2024-11-13 13:28:37,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:37,588 INFO L471 AbstractCegarLoop]: Abstraction has 7594 states and 9599 transitions. [2024-11-13 13:28:37,589 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.0) internal successors, (363), 3 states have internal predecessors, (363), 0 states have call successors, (0), 0 states 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 13:28:37,589 INFO L276 IsEmpty]: Start isEmpty. Operand 7594 states and 9599 transitions. [2024-11-13 13:28:37,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 449 [2024-11-13 13:28:37,603 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:37,604 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:37,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:28:37,605 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:37,605 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:37,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1646549258, now seen corresponding path program 1 times [2024-11-13 13:28:37,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:37,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1764569691] [2024-11-13 13:28:37,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:37,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:37,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:38,209 INFO L134 CoverageAnalysis]: Checked inductivity of 207 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-11-13 13:28:38,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:38,210 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1764569691] [2024-11-13 13:28:38,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1764569691] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:38,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:38,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:28:38,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290398830] [2024-11-13 13:28:38,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:38,211 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:28:38,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:38,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:28:38,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:28:38,214 INFO L87 Difference]: Start difference. First operand 7594 states and 9599 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 2 states have internal predecessors, (365), 0 states have call successors, (0), 0 states 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 13:28:41,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:41,812 INFO L93 Difference]: Finished difference Result 20706 states and 26458 transitions. [2024-11-13 13:28:41,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:28:41,813 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 2 states have internal predecessors, (365), 0 states have call successors, (0), 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 448 [2024-11-13 13:28:41,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:41,850 INFO L225 Difference]: With dead ends: 20706 [2024-11-13 13:28:41,851 INFO L226 Difference]: Without dead ends: 13114 [2024-11-13 13:28:41,857 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 13:28:41,858 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 497 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1937 mSolverCounterSat, 1073 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 497 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 3010 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1073 IncrementalHoareTripleChecker+Valid, 1937 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:41,858 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [497 Valid, 116 Invalid, 3010 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1073 Valid, 1937 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2024-11-13 13:28:41,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13114 states. [2024-11-13 13:28:42,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13114 to 12424. [2024-11-13 13:28:42,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12424 states, 12423 states have (on average 1.2751348305562265) internal successors, (15841), 12423 states have internal predecessors, (15841), 0 states have call successors, (0), 0 states 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 13:28:42,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12424 states to 12424 states and 15841 transitions. [2024-11-13 13:28:42,095 INFO L78 Accepts]: Start accepts. Automaton has 12424 states and 15841 transitions. Word has length 448 [2024-11-13 13:28:42,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:42,096 INFO L471 AbstractCegarLoop]: Abstraction has 12424 states and 15841 transitions. [2024-11-13 13:28:42,096 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 2 states have internal predecessors, (365), 0 states have call successors, (0), 0 states 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 13:28:42,096 INFO L276 IsEmpty]: Start isEmpty. Operand 12424 states and 15841 transitions. [2024-11-13 13:28:42,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 450 [2024-11-13 13:28:42,106 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:42,106 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:42,106 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:28:42,106 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:42,107 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:42,107 INFO L85 PathProgramCache]: Analyzing trace with hash 487153262, now seen corresponding path program 1 times [2024-11-13 13:28:42,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:42,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57995416] [2024-11-13 13:28:42,108 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:42,108 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:42,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:42,693 INFO L134 CoverageAnalysis]: Checked inductivity of 208 backedges. 123 proven. 0 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-13 13:28:42,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:42,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57995416] [2024-11-13 13:28:42,694 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57995416] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:42,694 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:42,694 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:28:42,694 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230299487] [2024-11-13 13:28:42,694 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:42,695 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:28:42,695 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:42,696 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:28:42,696 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:28:42,696 INFO L87 Difference]: Start difference. First operand 12424 states and 15841 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states 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 13:28:45,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:45,937 INFO L93 Difference]: Finished difference Result 24846 states and 31680 transitions. [2024-11-13 13:28:45,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:28:45,937 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 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 449 [2024-11-13 13:28:45,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:45,966 INFO L225 Difference]: With dead ends: 24846 [2024-11-13 13:28:45,966 INFO L226 Difference]: Without dead ends: 12424 [2024-11-13 13:28:45,975 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 13:28:45,976 INFO L432 NwaCegarLoop]: 1227 mSDtfsCounter, 632 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 541 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 632 SdHoareTripleChecker+Valid, 1234 SdHoareTripleChecker+Invalid, 2634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 541 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:45,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [632 Valid, 1234 Invalid, 2634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [541 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 13:28:45,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12424 states. [2024-11-13 13:28:46,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12424 to 12424. [2024-11-13 13:28:46,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12424 states, 12423 states have (on average 1.167753360701924) internal successors, (14507), 12423 states have internal predecessors, (14507), 0 states have call successors, (0), 0 states 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 13:28:46,285 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12424 states to 12424 states and 14507 transitions. [2024-11-13 13:28:46,286 INFO L78 Accepts]: Start accepts. Automaton has 12424 states and 14507 transitions. Word has length 449 [2024-11-13 13:28:46,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:46,290 INFO L471 AbstractCegarLoop]: Abstraction has 12424 states and 14507 transitions. [2024-11-13 13:28:46,291 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states 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 13:28:46,291 INFO L276 IsEmpty]: Start isEmpty. Operand 12424 states and 14507 transitions. [2024-11-13 13:28:46,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2024-11-13 13:28:46,317 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:46,318 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, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:46,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:28:46,318 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:46,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:46,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1798097187, now seen corresponding path program 1 times [2024-11-13 13:28:46,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:46,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558250474] [2024-11-13 13:28:46,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:46,323 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:46,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:47,148 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 255 trivial. 0 not checked. [2024-11-13 13:28:47,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:47,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558250474] [2024-11-13 13:28:47,151 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558250474] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:28:47,151 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1734930840] [2024-11-13 13:28:47,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:47,151 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:28:47,152 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:28:47,157 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:28:47,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:28:47,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:47,383 INFO L255 TraceCheckSpWp]: Trace formula consists of 606 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:28:47,401 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:28:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 261 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 261 trivial. 0 not checked. [2024-11-13 13:28:48,267 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:28:48,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1734930840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:48,268 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:28:48,268 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-13 13:28:48,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650767788] [2024-11-13 13:28:48,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:48,269 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:28:48,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:48,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:28:48,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:28:48,271 INFO L87 Difference]: Start difference. First operand 12424 states and 14507 transitions. Second operand has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 2 states have internal predecessors, (304), 0 states have call successors, (0), 0 states 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 13:28:51,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:51,615 INFO L93 Difference]: Finished difference Result 31746 states and 37588 transitions. [2024-11-13 13:28:51,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:28:51,616 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 2 states have internal predecessors, (304), 0 states have call successors, (0), 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 502 [2024-11-13 13:28:51,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:51,649 INFO L225 Difference]: With dead ends: 31746 [2024-11-13 13:28:51,649 INFO L226 Difference]: Without dead ends: 19324 [2024-11-13 13:28:51,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 504 GetRequests, 501 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:28:51,662 INFO L432 NwaCegarLoop]: 490 mSDtfsCounter, 400 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 2286 mSolverCounterSat, 454 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 400 SdHoareTripleChecker+Valid, 496 SdHoareTripleChecker+Invalid, 2740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 454 IncrementalHoareTripleChecker+Valid, 2286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:51,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [400 Valid, 496 Invalid, 2740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [454 Valid, 2286 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 13:28:51,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19324 states. [2024-11-13 13:28:51,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19324 to 17254. [2024-11-13 13:28:51,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17254 states, 17253 states have (on average 1.1538283197125139) internal successors, (19907), 17253 states have internal predecessors, (19907), 0 states have call successors, (0), 0 states 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 13:28:51,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17254 states to 17254 states and 19907 transitions. [2024-11-13 13:28:51,973 INFO L78 Accepts]: Start accepts. Automaton has 17254 states and 19907 transitions. Word has length 502 [2024-11-13 13:28:51,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:51,974 INFO L471 AbstractCegarLoop]: Abstraction has 17254 states and 19907 transitions. [2024-11-13 13:28:51,974 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.33333333333333) internal successors, (304), 2 states have internal predecessors, (304), 0 states have call successors, (0), 0 states 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 13:28:51,975 INFO L276 IsEmpty]: Start isEmpty. Operand 17254 states and 19907 transitions. [2024-11-13 13:28:51,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-13 13:28:51,988 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:51,988 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, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:28:52,010 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:28:52,188 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-13 13:28:52,189 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:52,189 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:52,189 INFO L85 PathProgramCache]: Analyzing trace with hash -347512120, now seen corresponding path program 1 times [2024-11-13 13:28:52,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:52,189 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486940276] [2024-11-13 13:28:52,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:52,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:52,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:52,784 INFO L134 CoverageAnalysis]: Checked inductivity of 709 backedges. 468 proven. 0 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-13 13:28:52,784 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:52,784 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486940276] [2024-11-13 13:28:52,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1486940276] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:52,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:52,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:28:52,786 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1696996324] [2024-11-13 13:28:52,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:52,787 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:28:52,787 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:52,787 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:28:52,787 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:28:52,788 INFO L87 Difference]: Start difference. First operand 17254 states and 19907 transitions. Second operand has 4 states, 4 states have (on average 89.0) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states 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 13:28:55,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:28:55,854 INFO L93 Difference]: Finished difference Result 35939 states and 41275 transitions. [2024-11-13 13:28:55,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:28:55,855 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 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 503 [2024-11-13 13:28:55,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:28:55,887 INFO L225 Difference]: With dead ends: 35939 [2024-11-13 13:28:55,887 INFO L226 Difference]: Without dead ends: 18634 [2024-11-13 13:28:55,900 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 13:28:55,901 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 513 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 513 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 3239 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 202 IncrementalHoareTripleChecker+Valid, 3037 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:28:55,901 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 640 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 13:28:55,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18634 states. [2024-11-13 13:28:56,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18634 to 18634. [2024-11-13 13:28:56,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18634 states, 18633 states have (on average 1.1132399506252348) internal successors, (20743), 18633 states have internal predecessors, (20743), 0 states have call successors, (0), 0 states 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 13:28:56,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18634 states to 18634 states and 20743 transitions. [2024-11-13 13:28:56,275 INFO L78 Accepts]: Start accepts. Automaton has 18634 states and 20743 transitions. Word has length 503 [2024-11-13 13:28:56,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:28:56,276 INFO L471 AbstractCegarLoop]: Abstraction has 18634 states and 20743 transitions. [2024-11-13 13:28:56,277 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.0) internal successors, (356), 3 states have internal predecessors, (356), 0 states have call successors, (0), 0 states 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 13:28:56,277 INFO L276 IsEmpty]: Start isEmpty. Operand 18634 states and 20743 transitions. [2024-11-13 13:28:56,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 535 [2024-11-13 13:28:56,282 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:28:56,282 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, 4, 4, 4, 4, 4, 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, 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] [2024-11-13 13:28:56,282 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:28:56,283 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:28:56,283 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:28:56,284 INFO L85 PathProgramCache]: Analyzing trace with hash -1881838477, now seen corresponding path program 1 times [2024-11-13 13:28:56,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:28:56,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536361959] [2024-11-13 13:28:56,284 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:28:56,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:28:56,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:28:57,724 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-13 13:28:57,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:28:57,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1536361959] [2024-11-13 13:28:57,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1536361959] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:28:57,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:28:57,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:28:57,728 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242035504] [2024-11-13 13:28:57,728 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:28:57,729 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:28:57,729 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:28:57,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:28:57,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:28:57,732 INFO L87 Difference]: Start difference. First operand 18634 states and 20743 transitions. Second operand has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states 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 13:29:00,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:00,099 INFO L93 Difference]: Finished difference Result 37266 states and 41484 transitions. [2024-11-13 13:29:00,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:00,099 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 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 534 [2024-11-13 13:29:00,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:00,119 INFO L225 Difference]: With dead ends: 37266 [2024-11-13 13:29:00,119 INFO L226 Difference]: Without dead ends: 18634 [2024-11-13 13:29:00,132 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 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 13:29:00,133 INFO L432 NwaCegarLoop]: 773 mSDtfsCounter, 733 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1974 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 780 SdHoareTripleChecker+Invalid, 2165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 1974 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:00,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 780 Invalid, 2165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 1974 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 13:29:00,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18634 states. [2024-11-13 13:29:00,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18634 to 17944. [2024-11-13 13:29:00,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17944 states, 17943 states have (on average 1.0965836259265451) internal successors, (19676), 17943 states have internal predecessors, (19676), 0 states have call successors, (0), 0 states 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 13:29:00,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17944 states to 17944 states and 19676 transitions. [2024-11-13 13:29:00,425 INFO L78 Accepts]: Start accepts. Automaton has 17944 states and 19676 transitions. Word has length 534 [2024-11-13 13:29:00,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:00,426 INFO L471 AbstractCegarLoop]: Abstraction has 17944 states and 19676 transitions. [2024-11-13 13:29:00,426 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 122.0) internal successors, (366), 3 states have internal predecessors, (366), 0 states have call successors, (0), 0 states 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 13:29:00,426 INFO L276 IsEmpty]: Start isEmpty. Operand 17944 states and 19676 transitions. [2024-11-13 13:29:00,432 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2024-11-13 13:29:00,432 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:00,433 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, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 13:29:00,433 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:29:00,433 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:00,433 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:00,434 INFO L85 PathProgramCache]: Analyzing trace with hash 2079577946, now seen corresponding path program 1 times [2024-11-13 13:29:00,434 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:00,434 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593628542] [2024-11-13 13:29:00,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:00,434 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:01,210 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 407 proven. 0 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2024-11-13 13:29:01,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:01,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593628542] [2024-11-13 13:29:01,211 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593628542] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:01,211 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:01,211 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:01,211 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509297789] [2024-11-13 13:29:01,211 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:01,212 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:01,212 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:01,213 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:01,213 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:01,213 INFO L87 Difference]: Start difference. First operand 17944 states and 19676 transitions. Second operand has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states 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 13:29:03,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:03,704 INFO L93 Difference]: Finished difference Result 43476 states and 47670 transitions. [2024-11-13 13:29:03,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:03,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 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 565 [2024-11-13 13:29:03,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:03,734 INFO L225 Difference]: With dead ends: 43476 [2024-11-13 13:29:03,734 INFO L226 Difference]: Without dead ends: 25534 [2024-11-13 13:29:03,747 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 13:29:03,748 INFO L432 NwaCegarLoop]: 972 mSDtfsCounter, 575 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1955 mSolverCounterSat, 263 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 979 SdHoareTripleChecker+Invalid, 2218 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 263 IncrementalHoareTripleChecker+Valid, 1955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:03,748 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 979 Invalid, 2218 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [263 Valid, 1955 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 13:29:03,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25534 states. [2024-11-13 13:29:03,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25534 to 25534. [2024-11-13 13:29:04,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25534 states, 25533 states have (on average 1.0807973994438569) internal successors, (27596), 25533 states have internal predecessors, (27596), 0 states have call successors, (0), 0 states 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 13:29:04,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25534 states to 25534 states and 27596 transitions. [2024-11-13 13:29:04,043 INFO L78 Accepts]: Start accepts. Automaton has 25534 states and 27596 transitions. Word has length 565 [2024-11-13 13:29:04,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:04,044 INFO L471 AbstractCegarLoop]: Abstraction has 25534 states and 27596 transitions. [2024-11-13 13:29:04,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states 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 13:29:04,044 INFO L276 IsEmpty]: Start isEmpty. Operand 25534 states and 27596 transitions. [2024-11-13 13:29:04,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 619 [2024-11-13 13:29:04,053 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:04,053 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, 5, 5, 5, 5, 5, 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, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:04,054 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:29:04,055 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:04,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:04,056 INFO L85 PathProgramCache]: Analyzing trace with hash 813743407, now seen corresponding path program 1 times [2024-11-13 13:29:04,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:04,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016593214] [2024-11-13 13:29:04,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:04,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:04,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:05,340 INFO L134 CoverageAnalysis]: Checked inductivity of 752 backedges. 415 proven. 252 refuted. 0 times theorem prover too weak. 85 trivial. 0 not checked. [2024-11-13 13:29:05,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:05,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016593214] [2024-11-13 13:29:05,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016593214] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:29:05,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [696799993] [2024-11-13 13:29:05,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:05,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:29:05,341 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:29:05,345 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:29:05,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:29:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:05,564 INFO L255 TraceCheckSpWp]: Trace formula consists of 773 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:29:05,572 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:29:05,725 INFO L134 CoverageAnalysis]: Checked inductivity of 752 backedges. 498 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-13 13:29:05,725 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:29:05,725 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [696799993] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:05,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:29:05,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-13 13:29:05,726 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593255948] [2024-11-13 13:29:05,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:05,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:05,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:05,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:05,729 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:29:05,729 INFO L87 Difference]: Start difference. First operand 25534 states and 27596 transitions. Second operand has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states 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 13:29:08,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:08,534 INFO L93 Difference]: Finished difference Result 57966 states and 63542 transitions. [2024-11-13 13:29:08,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:08,534 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 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 618 [2024-11-13 13:29:08,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:08,569 INFO L225 Difference]: With dead ends: 57966 [2024-11-13 13:29:08,569 INFO L226 Difference]: Without dead ends: 32434 [2024-11-13 13:29:08,585 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 623 GetRequests, 618 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:29:08,586 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 699 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1821 mSolverCounterSat, 481 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 699 SdHoareTripleChecker+Valid, 165 SdHoareTripleChecker+Invalid, 2302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 481 IncrementalHoareTripleChecker+Valid, 1821 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:08,586 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [699 Valid, 165 Invalid, 2302 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [481 Valid, 1821 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 13:29:08,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32434 states. [2024-11-13 13:29:08,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32434 to 32434. [2024-11-13 13:29:08,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32434 states, 32433 states have (on average 1.087503468689298) internal successors, (35271), 32433 states have internal predecessors, (35271), 0 states have call successors, (0), 0 states 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 13:29:08,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32434 states to 32434 states and 35271 transitions. [2024-11-13 13:29:08,926 INFO L78 Accepts]: Start accepts. Automaton has 32434 states and 35271 transitions. Word has length 618 [2024-11-13 13:29:08,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:08,926 INFO L471 AbstractCegarLoop]: Abstraction has 32434 states and 35271 transitions. [2024-11-13 13:29:08,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.0) internal successors, (450), 3 states have internal predecessors, (450), 0 states have call successors, (0), 0 states 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 13:29:08,927 INFO L276 IsEmpty]: Start isEmpty. Operand 32434 states and 35271 transitions. [2024-11-13 13:29:08,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 625 [2024-11-13 13:29:08,936 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:08,936 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, 5, 5, 5, 5, 5, 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, 3, 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] [2024-11-13 13:29:08,957 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:29:09,137 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:29:09,137 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:09,137 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:09,138 INFO L85 PathProgramCache]: Analyzing trace with hash 1459762912, now seen corresponding path program 1 times [2024-11-13 13:29:09,138 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:09,138 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649426471] [2024-11-13 13:29:09,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:09,138 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:09,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:09,623 INFO L134 CoverageAnalysis]: Checked inductivity of 761 backedges. 507 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-13 13:29:09,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:09,623 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649426471] [2024-11-13 13:29:09,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [649426471] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:09,624 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:09,624 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:09,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366057262] [2024-11-13 13:29:09,624 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:09,624 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:09,625 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:09,625 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:09,625 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:09,626 INFO L87 Difference]: Start difference. First operand 32434 states and 35271 transitions. Second operand has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 13:29:12,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:12,518 INFO L93 Difference]: Finished difference Result 74526 states and 81930 transitions. [2024-11-13 13:29:12,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:12,518 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 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 624 [2024-11-13 13:29:12,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:12,549 INFO L225 Difference]: With dead ends: 74526 [2024-11-13 13:29:12,549 INFO L226 Difference]: Without dead ends: 40024 [2024-11-13 13:29:12,564 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 13:29:12,564 INFO L432 NwaCegarLoop]: 1114 mSDtfsCounter, 604 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1886 mSolverCounterSat, 362 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 604 SdHoareTripleChecker+Valid, 1120 SdHoareTripleChecker+Invalid, 2248 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 362 IncrementalHoareTripleChecker+Valid, 1886 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:12,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [604 Valid, 1120 Invalid, 2248 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [362 Valid, 1886 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 13:29:12,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40024 states. [2024-11-13 13:29:12,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40024 to 40024. [2024-11-13 13:29:12,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40024 states, 40023 states have (on average 1.0784049171726258) internal successors, (43161), 40023 states have internal predecessors, (43161), 0 states have call successors, (0), 0 states 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 13:29:13,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40024 states to 40024 states and 43161 transitions. [2024-11-13 13:29:13,006 INFO L78 Accepts]: Start accepts. Automaton has 40024 states and 43161 transitions. Word has length 624 [2024-11-13 13:29:13,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:13,007 INFO L471 AbstractCegarLoop]: Abstraction has 40024 states and 43161 transitions. [2024-11-13 13:29:13,007 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 152.0) internal successors, (456), 3 states have internal predecessors, (456), 0 states have call successors, (0), 0 states 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 13:29:13,007 INFO L276 IsEmpty]: Start isEmpty. Operand 40024 states and 43161 transitions. [2024-11-13 13:29:13,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 643 [2024-11-13 13:29:13,016 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:13,016 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, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:13,016 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:29:13,016 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:13,017 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:13,017 INFO L85 PathProgramCache]: Analyzing trace with hash 795117575, now seen corresponding path program 1 times [2024-11-13 13:29:13,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:13,017 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720267887] [2024-11-13 13:29:13,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:13,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:13,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:13,529 INFO L134 CoverageAnalysis]: Checked inductivity of 740 backedges. 561 proven. 0 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-13 13:29:13,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:13,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720267887] [2024-11-13 13:29:13,529 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720267887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:13,529 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:13,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:13,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946526715] [2024-11-13 13:29:13,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:13,531 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:13,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:13,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:13,532 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:13,532 INFO L87 Difference]: Start difference. First operand 40024 states and 43161 transitions. Second operand has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states 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 13:29:16,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:16,201 INFO L93 Difference]: Finished difference Result 89706 states and 97666 transitions. [2024-11-13 13:29:16,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:16,202 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 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 642 [2024-11-13 13:29:16,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:16,232 INFO L225 Difference]: With dead ends: 89706 [2024-11-13 13:29:16,232 INFO L226 Difference]: Without dead ends: 46234 [2024-11-13 13:29:16,243 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 13:29:16,245 INFO L432 NwaCegarLoop]: 1056 mSDtfsCounter, 650 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1681 mSolverCounterSat, 515 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 650 SdHoareTripleChecker+Valid, 1063 SdHoareTripleChecker+Invalid, 2196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 515 IncrementalHoareTripleChecker+Valid, 1681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:16,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [650 Valid, 1063 Invalid, 2196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [515 Valid, 1681 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:29:16,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46234 states. [2024-11-13 13:29:16,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46234 to 44164. [2024-11-13 13:29:16,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44164 states, 44163 states have (on average 1.0464415913773975) internal successors, (46214), 44163 states have internal predecessors, (46214), 0 states have call successors, (0), 0 states 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 13:29:16,789 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44164 states to 44164 states and 46214 transitions. [2024-11-13 13:29:16,790 INFO L78 Accepts]: Start accepts. Automaton has 44164 states and 46214 transitions. Word has length 642 [2024-11-13 13:29:16,790 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:16,790 INFO L471 AbstractCegarLoop]: Abstraction has 44164 states and 46214 transitions. [2024-11-13 13:29:16,790 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.0) internal successors, (465), 3 states have internal predecessors, (465), 0 states have call successors, (0), 0 states 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 13:29:16,790 INFO L276 IsEmpty]: Start isEmpty. Operand 44164 states and 46214 transitions. [2024-11-13 13:29:16,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 858 [2024-11-13 13:29:16,807 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:16,808 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:16,808 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 13:29:16,808 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:16,809 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:16,809 INFO L85 PathProgramCache]: Analyzing trace with hash -1912411351, now seen corresponding path program 1 times [2024-11-13 13:29:16,809 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:16,809 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310452988] [2024-11-13 13:29:16,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:16,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:16,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:17,641 INFO L134 CoverageAnalysis]: Checked inductivity of 1307 backedges. 991 proven. 0 refuted. 0 times theorem prover too weak. 316 trivial. 0 not checked. [2024-11-13 13:29:17,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:17,642 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310452988] [2024-11-13 13:29:17,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310452988] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:17,642 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:17,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:17,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [139356114] [2024-11-13 13:29:17,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:17,644 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:17,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:17,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:17,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:17,650 INFO L87 Difference]: Start difference. First operand 44164 states and 46214 transitions. Second operand has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states 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 13:29:20,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:20,491 INFO L93 Difference]: Finished difference Result 98676 states and 103514 transitions. [2024-11-13 13:29:20,492 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:20,492 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 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 857 [2024-11-13 13:29:20,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:20,537 INFO L225 Difference]: With dead ends: 98676 [2024-11-13 13:29:20,537 INFO L226 Difference]: Without dead ends: 54514 [2024-11-13 13:29:20,558 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 13:29:20,559 INFO L432 NwaCegarLoop]: 960 mSDtfsCounter, 456 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1773 mSolverCounterSat, 221 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 456 SdHoareTripleChecker+Valid, 966 SdHoareTripleChecker+Invalid, 1994 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 221 IncrementalHoareTripleChecker+Valid, 1773 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:20,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [456 Valid, 966 Invalid, 1994 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [221 Valid, 1773 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:29:20,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54514 states. [2024-11-13 13:29:21,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54514 to 53824. [2024-11-13 13:29:21,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 53824 states, 53823 states have (on average 1.0426955019229698) internal successors, (56121), 53823 states have internal predecessors, (56121), 0 states have call successors, (0), 0 states 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 13:29:21,137 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 53824 states to 53824 states and 56121 transitions. [2024-11-13 13:29:21,137 INFO L78 Accepts]: Start accepts. Automaton has 53824 states and 56121 transitions. Word has length 857 [2024-11-13 13:29:21,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:21,138 INFO L471 AbstractCegarLoop]: Abstraction has 53824 states and 56121 transitions. [2024-11-13 13:29:21,138 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 209.33333333333334) internal successors, (628), 3 states have internal predecessors, (628), 0 states have call successors, (0), 0 states 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 13:29:21,138 INFO L276 IsEmpty]: Start isEmpty. Operand 53824 states and 56121 transitions. [2024-11-13 13:29:21,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 887 [2024-11-13 13:29:21,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:21,272 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 13:29:21,272 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:29:21,273 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:21,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:21,273 INFO L85 PathProgramCache]: Analyzing trace with hash 493580096, now seen corresponding path program 1 times [2024-11-13 13:29:21,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:21,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [641022012] [2024-11-13 13:29:21,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:21,273 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:21,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:22,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1442 backedges. 955 proven. 0 refuted. 0 times theorem prover too weak. 487 trivial. 0 not checked. [2024-11-13 13:29:22,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:22,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [641022012] [2024-11-13 13:29:22,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [641022012] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:22,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:22,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:22,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [688505772] [2024-11-13 13:29:22,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:22,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:29:22,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:22,250 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:29:22,250 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:29:22,250 INFO L87 Difference]: Start difference. First operand 53824 states and 56121 transitions. Second operand has 4 states, 4 states have (on average 152.5) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states 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 13:29:25,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:25,551 INFO L93 Difference]: Finished difference Result 114546 states and 119681 transitions. [2024-11-13 13:29:25,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:29:25,551 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 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 886 [2024-11-13 13:29:25,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:25,594 INFO L225 Difference]: With dead ends: 114546 [2024-11-13 13:29:25,594 INFO L226 Difference]: Without dead ends: 60724 [2024-11-13 13:29:25,615 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 13:29:25,616 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 1407 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2681 mSolverCounterSat, 353 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1407 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 3034 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 353 IncrementalHoareTripleChecker+Valid, 2681 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:25,616 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1407 Valid, 69 Invalid, 3034 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [353 Valid, 2681 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 13:29:25,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60724 states. [2024-11-13 13:29:26,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60724 to 60034. [2024-11-13 13:29:26,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60034 states, 60033 states have (on average 1.0417103926173938) internal successors, (62537), 60033 states have internal predecessors, (62537), 0 states have call successors, (0), 0 states 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 13:29:26,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60034 states to 60034 states and 62537 transitions. [2024-11-13 13:29:26,273 INFO L78 Accepts]: Start accepts. Automaton has 60034 states and 62537 transitions. Word has length 886 [2024-11-13 13:29:26,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:26,274 INFO L471 AbstractCegarLoop]: Abstraction has 60034 states and 62537 transitions. [2024-11-13 13:29:26,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 152.5) internal successors, (610), 3 states have internal predecessors, (610), 0 states have call successors, (0), 0 states 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 13:29:26,274 INFO L276 IsEmpty]: Start isEmpty. Operand 60034 states and 62537 transitions. [2024-11-13 13:29:26,314 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1481 [2024-11-13 13:29:26,314 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:26,315 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:26,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:29:26,315 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:26,315 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:26,316 INFO L85 PathProgramCache]: Analyzing trace with hash -1214063236, now seen corresponding path program 1 times [2024-11-13 13:29:26,316 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:26,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1911773091] [2024-11-13 13:29:26,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:26,316 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:26,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:29,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2893 backedges. 936 proven. 0 refuted. 0 times theorem prover too weak. 1957 trivial. 0 not checked. [2024-11-13 13:29:29,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:29,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1911773091] [2024-11-13 13:29:29,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1911773091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:29,200 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:29,200 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:29,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244886211] [2024-11-13 13:29:29,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:29,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:29,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:29,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:29,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:29,203 INFO L87 Difference]: Start difference. First operand 60034 states and 62537 transitions. Second operand has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states 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 13:29:31,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:31,293 INFO L93 Difference]: Finished difference Result 121446 states and 126479 transitions. [2024-11-13 13:29:31,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:31,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 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 1480 [2024-11-13 13:29:31,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:31,346 INFO L225 Difference]: With dead ends: 121446 [2024-11-13 13:29:31,346 INFO L226 Difference]: Without dead ends: 61414 [2024-11-13 13:29:31,367 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 7 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 13:29:31,367 INFO L432 NwaCegarLoop]: 756 mSDtfsCounter, 645 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1668 mSolverCounterSat, 246 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 645 SdHoareTripleChecker+Valid, 762 SdHoareTripleChecker+Invalid, 1914 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 246 IncrementalHoareTripleChecker+Valid, 1668 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:31,368 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [645 Valid, 762 Invalid, 1914 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [246 Valid, 1668 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 13:29:31,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61414 states. [2024-11-13 13:29:32,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61414 to 61414. [2024-11-13 13:29:32,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61414 states, 61413 states have (on average 1.037011707618908) internal successors, (63686), 61413 states have internal predecessors, (63686), 0 states have call successors, (0), 0 states 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 13:29:32,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61414 states to 61414 states and 63686 transitions. [2024-11-13 13:29:32,151 INFO L78 Accepts]: Start accepts. Automaton has 61414 states and 63686 transitions. Word has length 1480 [2024-11-13 13:29:32,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:32,152 INFO L471 AbstractCegarLoop]: Abstraction has 61414 states and 63686 transitions. [2024-11-13 13:29:32,153 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 223.0) internal successors, (669), 3 states have internal predecessors, (669), 0 states have call successors, (0), 0 states 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 13:29:32,153 INFO L276 IsEmpty]: Start isEmpty. Operand 61414 states and 63686 transitions. [2024-11-13 13:29:32,340 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1522 [2024-11-13 13:29:32,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:32,340 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:32,341 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:29:32,341 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:32,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:32,342 INFO L85 PathProgramCache]: Analyzing trace with hash -1128233270, now seen corresponding path program 1 times [2024-11-13 13:29:32,342 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:32,342 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1496484447] [2024-11-13 13:29:32,342 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:32,342 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:34,271 INFO L134 CoverageAnalysis]: Checked inductivity of 2717 backedges. 1685 proven. 0 refuted. 0 times theorem prover too weak. 1032 trivial. 0 not checked. [2024-11-13 13:29:34,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:34,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1496484447] [2024-11-13 13:29:34,271 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1496484447] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:34,271 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:34,271 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:34,271 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245601138] [2024-11-13 13:29:34,272 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:34,274 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:34,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:34,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:34,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:34,276 INFO L87 Difference]: Start difference. First operand 61414 states and 63686 transitions. Second operand has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states 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 13:29:36,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:36,635 INFO L93 Difference]: Finished difference Result 120066 states and 124565 transitions. [2024-11-13 13:29:36,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:36,636 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 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 1521 [2024-11-13 13:29:36,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:36,691 INFO L225 Difference]: With dead ends: 120066 [2024-11-13 13:29:36,691 INFO L226 Difference]: Without dead ends: 59344 [2024-11-13 13:29:36,721 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:36,722 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 445 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1586 mSolverCounterSat, 245 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 445 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 1831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 245 IncrementalHoareTripleChecker+Valid, 1586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:36,722 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [445 Valid, 155 Invalid, 1831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [245 Valid, 1586 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 13:29:36,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59344 states. [2024-11-13 13:29:37,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59344 to 56584. [2024-11-13 13:29:37,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56584 states, 56583 states have (on average 1.0268455189721295) internal successors, (58102), 56583 states have internal predecessors, (58102), 0 states have call successors, (0), 0 states 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 13:29:37,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56584 states to 56584 states and 58102 transitions. [2024-11-13 13:29:37,408 INFO L78 Accepts]: Start accepts. Automaton has 56584 states and 58102 transitions. Word has length 1521 [2024-11-13 13:29:37,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:37,410 INFO L471 AbstractCegarLoop]: Abstraction has 56584 states and 58102 transitions. [2024-11-13 13:29:37,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 305.3333333333333) internal successors, (916), 3 states have internal predecessors, (916), 0 states have call successors, (0), 0 states 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 13:29:37,410 INFO L276 IsEmpty]: Start isEmpty. Operand 56584 states and 58102 transitions. [2024-11-13 13:29:37,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1535 [2024-11-13 13:29:37,466 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:37,467 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 13:29:37,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:29:37,467 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:37,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:37,468 INFO L85 PathProgramCache]: Analyzing trace with hash -689698890, now seen corresponding path program 1 times [2024-11-13 13:29:37,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:37,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814109309] [2024-11-13 13:29:37,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:37,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:37,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:38,620 INFO L134 CoverageAnalysis]: Checked inductivity of 3381 backedges. 1804 proven. 0 refuted. 0 times theorem prover too weak. 1577 trivial. 0 not checked. [2024-11-13 13:29:38,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:38,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814109309] [2024-11-13 13:29:38,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1814109309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:38,620 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:38,621 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:38,621 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [242477269] [2024-11-13 13:29:38,621 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:38,622 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:38,622 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:38,623 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:38,623 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:38,623 INFO L87 Difference]: Start difference. First operand 56584 states and 58102 transitions. Second operand has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states 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 13:29:41,162 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:41,162 INFO L93 Difference]: Finished difference Result 114546 states and 117601 transitions. [2024-11-13 13:29:41,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:41,163 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 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 1534 [2024-11-13 13:29:41,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:41,230 INFO L225 Difference]: With dead ends: 114546 [2024-11-13 13:29:41,230 INFO L226 Difference]: Without dead ends: 57274 [2024-11-13 13:29:41,260 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 13:29:41,260 INFO L432 NwaCegarLoop]: 938 mSDtfsCounter, 625 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1779 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 625 SdHoareTripleChecker+Valid, 945 SdHoareTripleChecker+Invalid, 2004 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 1779 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:41,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [625 Valid, 945 Invalid, 2004 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 1779 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 13:29:41,315 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57274 states. [2024-11-13 13:29:41,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57274 to 55894. [2024-11-13 13:29:41,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55894 states, 55893 states have (on average 1.021952659545918) internal successors, (57120), 55893 states have internal predecessors, (57120), 0 states have call successors, (0), 0 states 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 13:29:42,014 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55894 states to 55894 states and 57120 transitions. [2024-11-13 13:29:42,014 INFO L78 Accepts]: Start accepts. Automaton has 55894 states and 57120 transitions. Word has length 1534 [2024-11-13 13:29:42,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:42,015 INFO L471 AbstractCegarLoop]: Abstraction has 55894 states and 57120 transitions. [2024-11-13 13:29:42,015 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 234.66666666666666) internal successors, (704), 3 states have internal predecessors, (704), 0 states have call successors, (0), 0 states 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 13:29:42,015 INFO L276 IsEmpty]: Start isEmpty. Operand 55894 states and 57120 transitions. [2024-11-13 13:29:42,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1601 [2024-11-13 13:29:42,052 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:42,052 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:42,052 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:29:42,052 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:42,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:42,053 INFO L85 PathProgramCache]: Analyzing trace with hash 131787120, now seen corresponding path program 1 times [2024-11-13 13:29:42,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:42,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [147687129] [2024-11-13 13:29:42,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:42,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:42,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:43,120 INFO L134 CoverageAnalysis]: Checked inductivity of 3341 backedges. 1924 proven. 0 refuted. 0 times theorem prover too weak. 1417 trivial. 0 not checked. [2024-11-13 13:29:43,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:43,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [147687129] [2024-11-13 13:29:43,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [147687129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:43,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:43,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:43,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313135302] [2024-11-13 13:29:43,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:43,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:43,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:43,122 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:43,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:43,123 INFO L87 Difference]: Start difference. First operand 55894 states and 57120 transitions. Second operand has 3 states, 3 states have (on average 286.6666666666667) internal successors, (860), 3 states have internal predecessors, (860), 0 states have call successors, (0), 0 states 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 13:29:45,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:45,402 INFO L93 Difference]: Finished difference Result 111786 states and 114240 transitions. [2024-11-13 13:29:45,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:45,403 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 286.6666666666667) internal successors, (860), 3 states have internal predecessors, (860), 0 states have call successors, (0), 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 1600 [2024-11-13 13:29:45,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:45,450 INFO L225 Difference]: With dead ends: 111786 [2024-11-13 13:29:45,450 INFO L226 Difference]: Without dead ends: 56584 [2024-11-13 13:29:45,472 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 13:29:45,472 INFO L432 NwaCegarLoop]: 918 mSDtfsCounter, 505 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1755 mSolverCounterSat, 163 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 505 SdHoareTripleChecker+Valid, 925 SdHoareTripleChecker+Invalid, 1918 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 163 IncrementalHoareTripleChecker+Valid, 1755 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:45,473 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [505 Valid, 925 Invalid, 1918 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [163 Valid, 1755 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 13:29:45,508 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56584 states. [2024-11-13 13:29:45,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56584 to 55894. [2024-11-13 13:29:45,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55894 states, 55893 states have (on average 1.0188037858050203) internal successors, (56944), 55893 states have internal predecessors, (56944), 0 states have call successors, (0), 0 states 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 13:29:46,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55894 states to 55894 states and 56944 transitions. [2024-11-13 13:29:46,245 INFO L78 Accepts]: Start accepts. Automaton has 55894 states and 56944 transitions. Word has length 1600 [2024-11-13 13:29:46,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:46,246 INFO L471 AbstractCegarLoop]: Abstraction has 55894 states and 56944 transitions. [2024-11-13 13:29:46,246 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 286.6666666666667) internal successors, (860), 3 states have internal predecessors, (860), 0 states have call successors, (0), 0 states 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 13:29:46,246 INFO L276 IsEmpty]: Start isEmpty. Operand 55894 states and 56944 transitions. [2024-11-13 13:29:46,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1605 [2024-11-13 13:29:46,291 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:29:46,291 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:29:46,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 13:29:46,291 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:29:46,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:29:46,292 INFO L85 PathProgramCache]: Analyzing trace with hash 1312745863, now seen corresponding path program 1 times [2024-11-13 13:29:46,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:29:46,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1455081515] [2024-11-13 13:29:46,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:29:46,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:29:46,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:29:47,614 INFO L134 CoverageAnalysis]: Checked inductivity of 3769 backedges. 2372 proven. 0 refuted. 0 times theorem prover too weak. 1397 trivial. 0 not checked. [2024-11-13 13:29:47,614 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:29:47,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1455081515] [2024-11-13 13:29:47,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1455081515] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:29:47,615 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:29:47,615 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:29:47,615 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576947915] [2024-11-13 13:29:47,615 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:29:47,619 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:29:47,619 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:29:47,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:29:47,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:29:47,621 INFO L87 Difference]: Start difference. First operand 55894 states and 56944 transitions. Second operand has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 0 states have call successors, (0), 0 states 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 13:29:50,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:29:50,465 INFO L93 Difference]: Finished difference Result 136624 states and 139344 transitions. [2024-11-13 13:29:50,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:29:50,465 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 0 states have call successors, (0), 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 1604 [2024-11-13 13:29:50,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:29:50,467 INFO L225 Difference]: With dead ends: 136624 [2024-11-13 13:29:50,467 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 13:29:50,497 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 13:29:50,497 INFO L432 NwaCegarLoop]: 891 mSDtfsCounter, 543 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1687 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 543 SdHoareTripleChecker+Valid, 897 SdHoareTripleChecker+Invalid, 1973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1687 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:29:50,498 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [543 Valid, 897 Invalid, 1973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1687 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:29:50,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 13:29:50,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 13:29:50,498 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states 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 13:29:50,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 13:29:50,499 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1604 [2024-11-13 13:29:50,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:29:50,499 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:29:50,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 281.3333333333333) internal successors, (844), 3 states have internal predecessors, (844), 0 states have call successors, (0), 0 states 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 13:29:50,500 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 13:29:50,500 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 13:29:50,504 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:29:50,505 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-13 13:29:50,512 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:29:50,514 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 13:29:53,878 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:29:53,912 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:29:53 BoogieIcfgContainer [2024-11-13 13:29:53,915 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:29:53,916 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:29:53,916 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:29:53,916 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:29:53,917 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:28:16" (3/4) ... [2024-11-13 13:29:53,919 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:29:53,974 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-13 13:29:53,979 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 13:29:53,983 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 13:29:53,987 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 13:29:54,376 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:29:54,380 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 13:29:54,381 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:29:54,382 INFO L158 Benchmark]: Toolchain (without parser) took 106824.83ms. Allocated memory was 117.4MB in the beginning and 6.6GB in the end (delta: 6.5GB). Free memory was 84.7MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 991.0MB. Max. memory is 16.1GB. [2024-11-13 13:29:54,383 INFO L158 Benchmark]: CDTParser took 2.11ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:29:54,383 INFO L158 Benchmark]: CACSL2BoogieTranslator took 2040.56ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 56.6MB in the end (delta: 27.7MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. [2024-11-13 13:29:54,383 INFO L158 Benchmark]: Boogie Procedure Inliner took 292.45ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 41.1MB in the end (delta: 15.5MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. [2024-11-13 13:29:54,384 INFO L158 Benchmark]: Boogie Preprocessor took 597.68ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 41.1MB in the beginning and 130.3MB in the end (delta: -89.2MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. [2024-11-13 13:29:54,384 INFO L158 Benchmark]: RCFGBuilder took 6087.68ms. Allocated memory is still 234.9MB. Free memory was 130.0MB in the beginning and 96.1MB in the end (delta: 33.9MB). Peak memory consumption was 106.5MB. Max. memory is 16.1GB. [2024-11-13 13:29:54,385 INFO L158 Benchmark]: TraceAbstraction took 97330.38ms. Allocated memory was 234.9MB in the beginning and 6.6GB in the end (delta: 6.4GB). Free memory was 96.1MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-13 13:29:54,386 INFO L158 Benchmark]: Witness Printer took 465.06ms. Allocated memory is still 6.6GB. Free memory was 5.6GB in the beginning and 5.6GB in the end (delta: 47.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 13:29:54,387 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 2.11ms. Allocated memory is still 167.8MB. Free memory is still 105.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 2040.56ms. Allocated memory is still 117.4MB. Free memory was 84.3MB in the beginning and 56.6MB in the end (delta: 27.7MB). Peak memory consumption was 62.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 292.45ms. Allocated memory is still 117.4MB. Free memory was 56.6MB in the beginning and 41.1MB in the end (delta: 15.5MB). Peak memory consumption was 40.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 597.68ms. Allocated memory was 117.4MB in the beginning and 234.9MB in the end (delta: 117.4MB). Free memory was 41.1MB in the beginning and 130.3MB in the end (delta: -89.2MB). Peak memory consumption was 30.6MB. Max. memory is 16.1GB. * RCFGBuilder took 6087.68ms. Allocated memory is still 234.9MB. Free memory was 130.0MB in the beginning and 96.1MB in the end (delta: 33.9MB). Peak memory consumption was 106.5MB. Max. memory is 16.1GB. * TraceAbstraction took 97330.38ms. Allocated memory was 234.9MB in the beginning and 6.6GB in the end (delta: 6.4GB). Free memory was 96.1MB in the beginning and 5.6GB in the end (delta: -5.5GB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 465.06ms. Allocated memory is still 6.6GB. Free memory was 5.6GB in the beginning and 5.6GB in the end (delta: 47.0MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 211]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 757 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 93.8s, OverallIterations: 20, TraceHistogramMax: 9, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.7s, AutomataDifference: 63.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 13906 SdHoareTripleChecker+Valid, 57.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 13906 mSDsluCounter, 13117 SdHoareTripleChecker+Invalid, 47.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 150 mSDsCounter, 8564 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 41708 IncrementalHoareTripleChecker+Invalid, 50272 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 8564 mSolverCounterUnsat, 12967 mSDtfsCounter, 41708 mSolverCounterSat, 0.4s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1190 GetRequests, 1160 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61414occurred in iteration=16, InterpolantAutomatonStates: 63, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 7.9s AutomataMinimizationTime, 20 MinimizatonAttempts, 13110 StatesRemovedByMinimization, 11 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 1.4s SatisfiabilityAnalysisTime, 18.0s InterpolantComputationTime, 16290 NumberOfCodeBlocks, 16290 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 16268 ConstructedInterpolants, 0 QuantifiedInterpolants, 30796 SizeOfPredicates, 0 NumberOfNonLiveVariables, 1379 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 22 InterpolantComputations, 20 PerfectInterpolantSequences, 24460/24718 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4269]: Loop Invariant Derived loop invariant: (((((((((((((((((((((((((a18 <= 10) && (a24 == 1)) && (a15 <= 4)) || (((a24 == 3) && (a18 == 9)) && (5 != a15))) || (((a18 == 11) && (a24 <= 3)) && (a15 <= 5))) || (((a24 == 3) && (307 <= a3)) && (a18 == 11))) || ((a24 == 0) && (a15 <= 4))) || (((((a18 <= 10) && (a24 == 3)) && (a15 != 4)) && (a3 <= 99)) && (5 != a15))) || ((((a18 <= 10) && (307 <= a3)) && (a15 <= 4)) && (a24 == 4))) || ((((a18 == 12) && (a24 == 4)) && (a15 <= 5)) && (a3 <= 99))) || (((a18 == 10) && (a24 == 4)) && (a15 <= 5))) || ((a24 == 3) && (a18 == 12))) || ((a18 == 8) && (a24 <= 3))) || ((((a18 == 8) && (307 <= a3)) && (a24 == 4)) && (a15 <= 5))) || (((a24 <= 3) && (a18 == 9)) && (a24 != 3))) || (((a24 == 3) && (307 <= a3)) && (a18 == 10))) || (((a18 == 10) && (a24 <= 3)) && (a24 != 3))) || (((a15 != 4) && (a24 <= 3)) && (a18 == 12))) || (((a18 == 11) && (a24 == 4)) && (a15 <= 5))) || (((a24 == 1) && (307 <= a3)) && (a15 <= 4))) || (((a18 == 11) && (a24 <= 3)) && (a24 != 3))) || (((a24 == 1) && (a3 <= 99)) && (5 != a15))) || (((a15 <= 4) && (a18 == 12)) && (a24 == 4))) || (((a18 == 10) && (a24 <= 3)) && (5 != a15))) || (((a18 == 8) && (a15 <= 4)) && (a24 == 4))) RESULT: Ultimate proved your program to be correct! [2024-11-13 13:29:54,422 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e6e5f2ad-292d-4bc5-a531-17a48bad61af/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE