./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem18_label58.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_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/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_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem18_label58.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/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_a1d54f46-ad13-4d8f-a3a2-584deed1de40/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 be46f37b21ca1efe6aa6939661dfa8a9a0b05dac2f573e189e36e956003b5dd8 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 15:42:03,599 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 15:42:03,684 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 15:42:03,691 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 15:42:03,691 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 15:42:03,714 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 15:42:03,715 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 15:42:03,715 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 15:42:03,715 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 15:42:03,715 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 15:42:03,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 15:42:03,715 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 15:42:03,716 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 15:42:03,716 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 15:42:03,716 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 15:42:03,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 15:42:03,716 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 15:42:03,716 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 15:42:03,716 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 15:42:03,717 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 15:42:03,717 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 15:42:03,717 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 15:42:03,717 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 15:42:03,717 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 15:42:03,717 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 15:42:03,717 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 15:42:03,717 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 15:42:03,717 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 15:42:03,718 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 15:42:03,718 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 15:42:03,718 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 15:42:03,718 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 15:42:03,718 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:42:03,718 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 15:42:03,718 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 15:42:03,718 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 15:42:03,718 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 15:42:03,719 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 15:42:03,719 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 15:42:03,719 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 15:42:03,719 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 15:42:03,719 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 15:42:03,719 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_a1d54f46-ad13-4d8f-a3a2-584deed1de40/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 -> be46f37b21ca1efe6aa6939661dfa8a9a0b05dac2f573e189e36e956003b5dd8 [2024-11-13 15:42:04,020 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 15:42:04,032 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 15:42:04,035 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 15:42:04,036 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 15:42:04,036 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 15:42:04,038 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem18_label58.c Unable to find full path for "g++" [2024-11-13 15:42:05,895 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 15:42:06,447 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 15:42:06,447 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/sv-benchmarks/c/eca-rers2012/Problem18_label58.c [2024-11-13 15:42:06,482 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/data/15723eb3d/9bec038044304beb82b70124200d1773/FLAG5ffef14e6 [2024-11-13 15:42:06,502 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/data/15723eb3d/9bec038044304beb82b70124200d1773 [2024-11-13 15:42:06,505 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 15:42:06,506 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 15:42:06,510 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 15:42:06,510 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 15:42:06,515 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 15:42:06,516 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:42:06" (1/1) ... [2024-11-13 15:42:06,517 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a1b26c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:06, skipping insertion in model container [2024-11-13 15:42:06,519 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 03:42:06" (1/1) ... [2024-11-13 15:42:06,653 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 15:42:06,868 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_a1d54f46-ad13-4d8f-a3a2-584deed1de40/sv-benchmarks/c/eca-rers2012/Problem18_label58.c[4356,4369] [2024-11-13 15:42:07,643 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:42:07,655 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 15:42:07,673 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_a1d54f46-ad13-4d8f-a3a2-584deed1de40/sv-benchmarks/c/eca-rers2012/Problem18_label58.c[4356,4369] [2024-11-13 15:42:08,039 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 15:42:08,069 INFO L204 MainTranslator]: Completed translation [2024-11-13 15:42:08,070 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08 WrapperNode [2024-11-13 15:42:08,070 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 15:42:08,071 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 15:42:08,071 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 15:42:08,071 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 15:42:08,079 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,140 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,400 INFO L138 Inliner]: procedures = 16, calls = 10, calls flagged for inlining = 5, calls inlined = 5, statements flattened = 4134 [2024-11-13 15:42:08,400 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 15:42:08,402 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 15:42:08,402 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 15:42:08,402 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 15:42:08,411 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,412 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,456 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,547 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 15:42:08,548 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,548 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,648 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,677 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,695 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,706 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,736 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 15:42:08,738 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 15:42:08,738 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 15:42:08,739 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 15:42:08,740 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (1/1) ... [2024-11-13 15:42:08,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 15:42:08,762 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:08,776 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 15:42:08,781 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 15:42:08,810 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 15:42:08,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 15:42:08,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 15:42:08,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 15:42:08,900 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 15:42:08,902 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 15:42:13,459 INFO L? ?]: Removed 639 outVars from TransFormulas that were not future-live. [2024-11-13 15:42:13,461 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 15:42:13,498 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 15:42:13,499 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 15:42:13,499 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:42:13 BoogieIcfgContainer [2024-11-13 15:42:13,499 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 15:42:13,502 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 15:42:13,502 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 15:42:13,511 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 15:42:13,511 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 03:42:06" (1/3) ... [2024-11-13 15:42:13,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361c4e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:42:13, skipping insertion in model container [2024-11-13 15:42:13,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 03:42:08" (2/3) ... [2024-11-13 15:42:13,512 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@361c4e18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 03:42:13, skipping insertion in model container [2024-11-13 15:42:13,512 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:42:13" (3/3) ... [2024-11-13 15:42:13,513 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem18_label58.c [2024-11-13 15:42:13,529 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 15:42:13,530 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem18_label58.c that has 1 procedures, 757 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 15:42:13,604 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 15:42:13,616 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;@211ce9e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 15:42:13,616 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 15:42:13,622 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 15:42:13,629 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-13 15:42:13,629 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:13,630 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] [2024-11-13 15:42:13,630 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:13,635 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:13,635 INFO L85 PathProgramCache]: Analyzing trace with hash -2018591278, now seen corresponding path program 1 times [2024-11-13 15:42:13,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:13,643 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013425388] [2024-11-13 15:42:13,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:13,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:14,044 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 15:42:14,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:14,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013425388] [2024-11-13 15:42:14,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1013425388] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:14,046 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:14,046 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:42:14,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076046336] [2024-11-13 15:42:14,051 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:14,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:42:14,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:14,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:14,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:42:14,086 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 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states 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 15:42:17,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:17,920 INFO L93 Difference]: Finished difference Result 2205 states and 4266 transitions. [2024-11-13 15:42:17,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:17,922 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 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 40 [2024-11-13 15:42:17,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:17,938 INFO L225 Difference]: With dead ends: 2205 [2024-11-13 15:42:17,939 INFO L226 Difference]: Without dead ends: 1384 [2024-11-13 15:42:17,944 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 15:42:17,946 INFO L432 NwaCegarLoop]: 421 mSDtfsCounter, 679 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 2232 mSolverCounterSat, 530 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 679 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 2762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 530 IncrementalHoareTripleChecker+Valid, 2232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:17,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [679 Valid, 430 Invalid, 2762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [530 Valid, 2232 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2024-11-13 15:42:17,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1384 states. [2024-11-13 15:42:18,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1384 to 1384. [2024-11-13 15:42:18,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1384 states, 1383 states have (on average 1.6514822848879247) internal successors, (2284), 1383 states have internal predecessors, (2284), 0 states have call successors, (0), 0 states 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 15:42:18,078 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1384 states to 1384 states and 2284 transitions. [2024-11-13 15:42:18,079 INFO L78 Accepts]: Start accepts. Automaton has 1384 states and 2284 transitions. Word has length 40 [2024-11-13 15:42:18,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:18,080 INFO L471 AbstractCegarLoop]: Abstraction has 1384 states and 2284 transitions. [2024-11-13 15:42:18,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 13.333333333333334) internal successors, (40), 2 states have internal predecessors, (40), 0 states have call successors, (0), 0 states 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 15:42:18,080 INFO L276 IsEmpty]: Start isEmpty. Operand 1384 states and 2284 transitions. [2024-11-13 15:42:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-13 15:42:18,086 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:18,086 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:18,087 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 15:42:18,087 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:18,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:18,090 INFO L85 PathProgramCache]: Analyzing trace with hash 1879607867, now seen corresponding path program 1 times [2024-11-13 15:42:18,091 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:18,091 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062758280] [2024-11-13 15:42:18,091 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:18,091 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:18,423 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:42:18,424 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:18,424 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062758280] [2024-11-13 15:42:18,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062758280] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:18,425 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:18,425 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:42:18,425 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157770032] [2024-11-13 15:42:18,425 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:18,427 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:42:18,427 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:18,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:18,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:42:18,428 INFO L87 Difference]: Start difference. First operand 1384 states and 2284 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:21,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:21,884 INFO L93 Difference]: Finished difference Result 4146 states and 6847 transitions. [2024-11-13 15:42:21,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:21,885 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 106 [2024-11-13 15:42:21,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:21,895 INFO L225 Difference]: With dead ends: 4146 [2024-11-13 15:42:21,896 INFO L226 Difference]: Without dead ends: 2764 [2024-11-13 15:42:21,899 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 15:42:21,900 INFO L432 NwaCegarLoop]: 526 mSDtfsCounter, 712 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 918 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 712 SdHoareTripleChecker+Valid, 531 SdHoareTripleChecker+Invalid, 2619 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 918 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:21,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [712 Valid, 531 Invalid, 2619 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [918 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 15:42:21,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2764 states. [2024-11-13 15:42:21,998 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2764 to 2764. [2024-11-13 15:42:22,004 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2764 states, 2763 states have (on average 1.404632645674991) internal successors, (3881), 2763 states have internal predecessors, (3881), 0 states have call successors, (0), 0 states 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 15:42:22,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2764 states to 2764 states and 3881 transitions. [2024-11-13 15:42:22,015 INFO L78 Accepts]: Start accepts. Automaton has 2764 states and 3881 transitions. Word has length 106 [2024-11-13 15:42:22,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:22,016 INFO L471 AbstractCegarLoop]: Abstraction has 2764 states and 3881 transitions. [2024-11-13 15:42:22,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 2 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 15:42:22,016 INFO L276 IsEmpty]: Start isEmpty. Operand 2764 states and 3881 transitions. [2024-11-13 15:42:22,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-13 15:42:22,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:22,019 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:22,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 15:42:22,020 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:22,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:22,021 INFO L85 PathProgramCache]: Analyzing trace with hash 728352220, now seen corresponding path program 1 times [2024-11-13 15:42:22,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:22,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653185608] [2024-11-13 15:42:22,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:22,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:22,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:22,280 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:42:22,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:22,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653185608] [2024-11-13 15:42:22,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653185608] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:22,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:22,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 15:42:22,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767371825] [2024-11-13 15:42:22,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:22,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:42:22,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:22,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:22,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:42:22,284 INFO L87 Difference]: Start difference. First operand 2764 states and 3881 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states 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 15:42:25,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:25,276 INFO L93 Difference]: Finished difference Result 6906 states and 9524 transitions. [2024-11-13 15:42:25,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:25,277 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2024-11-13 15:42:25,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:25,295 INFO L225 Difference]: With dead ends: 6906 [2024-11-13 15:42:25,295 INFO L226 Difference]: Without dead ends: 4144 [2024-11-13 15:42:25,298 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 15:42:25,303 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 733 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1934 mSolverCounterSat, 746 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 733 SdHoareTripleChecker+Valid, 109 SdHoareTripleChecker+Invalid, 2680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 746 IncrementalHoareTripleChecker+Valid, 1934 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:25,303 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [733 Valid, 109 Invalid, 2680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [746 Valid, 1934 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 15:42:25,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4144 states. [2024-11-13 15:42:25,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4144 to 4144. [2024-11-13 15:42:25,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4144 states, 4143 states have (on average 1.29012792662322) internal successors, (5345), 4143 states have internal predecessors, (5345), 0 states have call successors, (0), 0 states 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 15:42:25,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4144 states to 4144 states and 5345 transitions. [2024-11-13 15:42:25,398 INFO L78 Accepts]: Start accepts. Automaton has 4144 states and 5345 transitions. Word has length 107 [2024-11-13 15:42:25,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:25,399 INFO L471 AbstractCegarLoop]: Abstraction has 4144 states and 5345 transitions. [2024-11-13 15:42:25,399 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 2 states have internal predecessors, (107), 0 states have call successors, (0), 0 states 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 15:42:25,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4144 states and 5345 transitions. [2024-11-13 15:42:25,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 134 [2024-11-13 15:42:25,406 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:25,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:25,406 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 15:42:25,406 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:25,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:25,407 INFO L85 PathProgramCache]: Analyzing trace with hash 1935956155, now seen corresponding path program 1 times [2024-11-13 15:42:25,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:25,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686085743] [2024-11-13 15:42:25,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:25,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:25,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:26,015 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:42:26,015 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:26,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686085743] [2024-11-13 15:42:26,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1686085743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:26,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:26,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:42:26,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [886459375] [2024-11-13 15:42:26,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:26,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:42:26,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:26,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:42:26,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:42:26,020 INFO L87 Difference]: Start difference. First operand 4144 states and 5345 transitions. Second operand has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 15:42:31,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:31,077 INFO L93 Difference]: Finished difference Result 11046 states and 14266 transitions. [2024-11-13 15:42:31,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:42:31,077 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 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 133 [2024-11-13 15:42:31,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:31,102 INFO L225 Difference]: With dead ends: 11046 [2024-11-13 15:42:31,102 INFO L226 Difference]: Without dead ends: 6904 [2024-11-13 15:42:31,107 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 15:42:31,110 INFO L432 NwaCegarLoop]: 624 mSDtfsCounter, 1923 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 4348 mSolverCounterSat, 466 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1923 SdHoareTripleChecker+Valid, 641 SdHoareTripleChecker+Invalid, 4814 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 466 IncrementalHoareTripleChecker+Valid, 4348 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:31,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1923 Valid, 641 Invalid, 4814 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [466 Valid, 4348 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 15:42:31,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6904 states. [2024-11-13 15:42:31,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6904 to 6214. [2024-11-13 15:42:31,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6214 states, 6213 states have (on average 1.2243682600997907) internal successors, (7607), 6213 states have internal predecessors, (7607), 0 states have call successors, (0), 0 states 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 15:42:31,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6214 states to 6214 states and 7607 transitions. [2024-11-13 15:42:31,277 INFO L78 Accepts]: Start accepts. Automaton has 6214 states and 7607 transitions. Word has length 133 [2024-11-13 15:42:31,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:31,278 INFO L471 AbstractCegarLoop]: Abstraction has 6214 states and 7607 transitions. [2024-11-13 15:42:31,278 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 33.25) internal successors, (133), 3 states have internal predecessors, (133), 0 states have call successors, (0), 0 states 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 15:42:31,278 INFO L276 IsEmpty]: Start isEmpty. Operand 6214 states and 7607 transitions. [2024-11-13 15:42:31,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-13 15:42:31,284 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:31,284 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:31,284 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 15:42:31,284 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:31,285 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:31,285 INFO L85 PathProgramCache]: Analyzing trace with hash -135271911, now seen corresponding path program 1 times [2024-11-13 15:42:31,285 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:31,285 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899740888] [2024-11-13 15:42:31,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:31,285 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:31,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:31,832 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 10 proven. 27 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:42:31,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:31,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899740888] [2024-11-13 15:42:31,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899740888] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:42:31,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1661274523] [2024-11-13 15:42:31,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:31,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:42:31,835 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:42:31,840 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:42:31,842 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 15:42:31,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:31,980 INFO L255 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:42:31,990 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:42:32,111 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 37 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:42:32,111 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:42:32,111 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1661274523] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:32,111 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:42:32,111 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 15:42:32,112 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [875148918] [2024-11-13 15:42:32,112 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:32,112 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:42:32,112 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:32,113 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:32,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:42:32,114 INFO L87 Difference]: Start difference. First operand 6214 states and 7607 transitions. Second operand has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states 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 15:42:35,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:35,450 INFO L93 Difference]: Finished difference Result 16566 states and 20554 transitions. [2024-11-13 15:42:35,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:35,451 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 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 222 [2024-11-13 15:42:35,452 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:35,478 INFO L225 Difference]: With dead ends: 16566 [2024-11-13 15:42:35,478 INFO L226 Difference]: Without dead ends: 10354 [2024-11-13 15:42:35,485 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 225 GetRequests, 221 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 15:42:35,486 INFO L432 NwaCegarLoop]: 454 mSDtfsCounter, 725 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1892 mSolverCounterSat, 783 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 725 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 2675 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 783 IncrementalHoareTripleChecker+Valid, 1892 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:35,486 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [725 Valid, 460 Invalid, 2675 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [783 Valid, 1892 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 15:42:35,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10354 states. [2024-11-13 15:42:35,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10354 to 9664. [2024-11-13 15:42:35,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9664 states, 9663 states have (on average 1.1827589775432061) internal successors, (11429), 9663 states have internal predecessors, (11429), 0 states have call successors, (0), 0 states 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 15:42:35,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9664 states to 9664 states and 11429 transitions. [2024-11-13 15:42:35,671 INFO L78 Accepts]: Start accepts. Automaton has 9664 states and 11429 transitions. Word has length 222 [2024-11-13 15:42:35,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:35,671 INFO L471 AbstractCegarLoop]: Abstraction has 9664 states and 11429 transitions. [2024-11-13 15:42:35,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 74.0) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states 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 15:42:35,672 INFO L276 IsEmpty]: Start isEmpty. Operand 9664 states and 11429 transitions. [2024-11-13 15:42:35,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 410 [2024-11-13 15:42:35,679 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:35,679 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, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:35,700 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 15:42:35,883 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:42:35,884 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:35,885 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:35,885 INFO L85 PathProgramCache]: Analyzing trace with hash 1594004553, now seen corresponding path program 1 times [2024-11-13 15:42:35,885 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:35,885 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847808091] [2024-11-13 15:42:35,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:35,886 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:35,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:36,663 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 311 proven. 0 refuted. 0 times theorem prover too weak. 56 trivial. 0 not checked. [2024-11-13 15:42:36,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:36,664 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847808091] [2024-11-13 15:42:36,664 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847808091] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:36,665 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:36,665 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:42:36,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127692292] [2024-11-13 15:42:36,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:36,668 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:42:36,668 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:36,669 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:42:36,669 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:42:36,669 INFO L87 Difference]: Start difference. First operand 9664 states and 11429 transitions. Second operand has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 15:42:39,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:39,989 INFO L93 Difference]: Finished difference Result 21449 states and 25039 transitions. [2024-11-13 15:42:39,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:42:39,990 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 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 409 [2024-11-13 15:42:39,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:40,051 INFO L225 Difference]: With dead ends: 21449 [2024-11-13 15:42:40,055 INFO L226 Difference]: Without dead ends: 11734 [2024-11-13 15:42:40,069 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 15:42:40,070 INFO L432 NwaCegarLoop]: 625 mSDtfsCounter, 513 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 3037 mSolverCounterSat, 202 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s 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, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:40,070 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [513 Valid, 640 Invalid, 3239 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [202 Valid, 3037 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 15:42:40,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11734 states. [2024-11-13 15:42:40,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11734 to 11734. [2024-11-13 15:42:40,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11734 states, 11733 states have (on average 1.119151112247507) internal successors, (13131), 11733 states have internal predecessors, (13131), 0 states have call successors, (0), 0 states 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 15:42:40,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11734 states to 11734 states and 13131 transitions. [2024-11-13 15:42:40,326 INFO L78 Accepts]: Start accepts. Automaton has 11734 states and 13131 transitions. Word has length 409 [2024-11-13 15:42:40,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:40,327 INFO L471 AbstractCegarLoop]: Abstraction has 11734 states and 13131 transitions. [2024-11-13 15:42:40,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 88.75) internal successors, (355), 3 states have internal predecessors, (355), 0 states have call successors, (0), 0 states 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 15:42:40,327 INFO L276 IsEmpty]: Start isEmpty. Operand 11734 states and 13131 transitions. [2024-11-13 15:42:40,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 433 [2024-11-13 15:42:40,340 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:40,340 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 15:42:40,340 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 15:42:40,340 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:40,341 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:40,341 INFO L85 PathProgramCache]: Analyzing trace with hash 412644118, now seen corresponding path program 1 times [2024-11-13 15:42:40,341 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:40,341 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875414040] [2024-11-13 15:42:40,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:40,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:40,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:41,175 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 167 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 15:42:41,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:41,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875414040] [2024-11-13 15:42:41,176 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875414040] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:41,176 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:41,176 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:42:41,176 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766241296] [2024-11-13 15:42:41,176 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:41,177 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:42:41,177 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:41,177 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:41,177 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:42:41,178 INFO L87 Difference]: Start difference. First operand 11734 states and 13131 transitions. Second operand has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 15:42:44,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:44,070 INFO L93 Difference]: Finished difference Result 32436 states and 36566 transitions. [2024-11-13 15:42:44,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:44,071 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 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 432 [2024-11-13 15:42:44,072 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:44,107 INFO L225 Difference]: With dead ends: 32436 [2024-11-13 15:42:44,107 INFO L226 Difference]: Without dead ends: 20704 [2024-11-13 15:42:44,116 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 15:42:44,117 INFO L432 NwaCegarLoop]: 1065 mSDtfsCounter, 598 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 2033 mSolverCounterSat, 336 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 598 SdHoareTripleChecker+Valid, 1072 SdHoareTripleChecker+Invalid, 2369 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 336 IncrementalHoareTripleChecker+Valid, 2033 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:44,117 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [598 Valid, 1072 Invalid, 2369 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [336 Valid, 2033 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 15:42:44,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20704 states. [2024-11-13 15:42:44,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20704 to 20014. [2024-11-13 15:42:44,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20014 states, 20013 states have (on average 1.095537900364763) internal successors, (21925), 20013 states have internal predecessors, (21925), 0 states have call successors, (0), 0 states 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 15:42:44,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20014 states to 20014 states and 21925 transitions. [2024-11-13 15:42:44,382 INFO L78 Accepts]: Start accepts. Automaton has 20014 states and 21925 transitions. Word has length 432 [2024-11-13 15:42:44,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:44,383 INFO L471 AbstractCegarLoop]: Abstraction has 20014 states and 21925 transitions. [2024-11-13 15:42:44,384 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.0) internal successors, (432), 3 states have internal predecessors, (432), 0 states have call successors, (0), 0 states 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 15:42:44,384 INFO L276 IsEmpty]: Start isEmpty. Operand 20014 states and 21925 transitions. [2024-11-13 15:42:44,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 440 [2024-11-13 15:42:44,393 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:44,394 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 15:42:44,394 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 15:42:44,394 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:44,395 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:44,395 INFO L85 PathProgramCache]: Analyzing trace with hash 794298504, now seen corresponding path program 1 times [2024-11-13 15:42:44,395 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:44,396 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755107630] [2024-11-13 15:42:44,396 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:44,396 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:44,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:44,979 INFO L134 CoverageAnalysis]: Checked inductivity of 167 backedges. 75 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-11-13 15:42:44,979 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:44,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755107630] [2024-11-13 15:42:44,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1755107630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:44,980 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:44,980 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:42:44,980 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [725230067] [2024-11-13 15:42:44,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:44,981 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:42:44,981 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:44,982 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:44,982 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:42:44,982 INFO L87 Difference]: Start difference. First operand 20014 states and 21925 transitions. Second operand has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states 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 15:42:47,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:47,877 INFO L93 Difference]: Finished difference Result 46236 states and 50984 transitions. [2024-11-13 15:42:47,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:47,878 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 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 439 [2024-11-13 15:42:47,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:47,926 INFO L225 Difference]: With dead ends: 46236 [2024-11-13 15:42:47,926 INFO L226 Difference]: Without dead ends: 22774 [2024-11-13 15:42:47,943 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 15:42:47,944 INFO L432 NwaCegarLoop]: 1136 mSDtfsCounter, 656 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1736 mSolverCounterSat, 518 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 656 SdHoareTripleChecker+Valid, 1143 SdHoareTripleChecker+Invalid, 2254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 518 IncrementalHoareTripleChecker+Valid, 1736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:47,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [656 Valid, 1143 Invalid, 2254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [518 Valid, 1736 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-13 15:42:47,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22774 states. [2024-11-13 15:42:48,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22774 to 20704. [2024-11-13 15:42:48,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20704 states, 20703 states have (on average 1.0554025986571995) internal successors, (21850), 20703 states have internal predecessors, (21850), 0 states have call successors, (0), 0 states 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 15:42:48,338 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20704 states to 20704 states and 21850 transitions. [2024-11-13 15:42:48,339 INFO L78 Accepts]: Start accepts. Automaton has 20704 states and 21850 transitions. Word has length 439 [2024-11-13 15:42:48,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:48,340 INFO L471 AbstractCegarLoop]: Abstraction has 20704 states and 21850 transitions. [2024-11-13 15:42:48,340 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 116.0) internal successors, (348), 3 states have internal predecessors, (348), 0 states have call successors, (0), 0 states 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 15:42:48,340 INFO L276 IsEmpty]: Start isEmpty. Operand 20704 states and 21850 transitions. [2024-11-13 15:42:48,350 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 511 [2024-11-13 15:42:48,351 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:48,351 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 15:42:48,351 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 15:42:48,352 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:48,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:48,352 INFO L85 PathProgramCache]: Analyzing trace with hash 2007729299, now seen corresponding path program 1 times [2024-11-13 15:42:48,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:48,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542957837] [2024-11-13 15:42:48,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:48,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:48,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:48,816 INFO L134 CoverageAnalysis]: Checked inductivity of 367 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2024-11-13 15:42:48,818 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:48,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542957837] [2024-11-13 15:42:48,819 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542957837] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:48,819 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:48,819 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:42:48,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920308856] [2024-11-13 15:42:48,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:48,821 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:42:48,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:48,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:48,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:42:48,824 INFO L87 Difference]: Start difference. First operand 20704 states and 21850 transitions. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states 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 15:42:51,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:51,344 INFO L93 Difference]: Finished difference Result 46236 states and 49051 transitions. [2024-11-13 15:42:51,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:51,345 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 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 510 [2024-11-13 15:42:51,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:51,384 INFO L225 Difference]: With dead ends: 46236 [2024-11-13 15:42:51,384 INFO L226 Difference]: Without dead ends: 23464 [2024-11-13 15:42:51,395 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 15:42:51,396 INFO L432 NwaCegarLoop]: 929 mSDtfsCounter, 670 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1656 mSolverCounterSat, 257 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 670 SdHoareTripleChecker+Valid, 936 SdHoareTripleChecker+Invalid, 1913 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 257 IncrementalHoareTripleChecker+Valid, 1656 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:51,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [670 Valid, 936 Invalid, 1913 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [257 Valid, 1656 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 15:42:51,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23464 states. [2024-11-13 15:42:51,608 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23464 to 23464. [2024-11-13 15:42:51,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23464 states, 23463 states have (on average 1.0528065464774325) internal successors, (24702), 23463 states have internal predecessors, (24702), 0 states have call successors, (0), 0 states 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 15:42:51,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23464 states to 23464 states and 24702 transitions. [2024-11-13 15:42:51,654 INFO L78 Accepts]: Start accepts. Automaton has 23464 states and 24702 transitions. Word has length 510 [2024-11-13 15:42:51,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:51,655 INFO L471 AbstractCegarLoop]: Abstraction has 23464 states and 24702 transitions. [2024-11-13 15:42:51,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states 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 15:42:51,655 INFO L276 IsEmpty]: Start isEmpty. Operand 23464 states and 24702 transitions. [2024-11-13 15:42:51,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 674 [2024-11-13 15:42:51,664 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:51,667 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:51,667 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 15:42:51,667 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:51,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:51,668 INFO L85 PathProgramCache]: Analyzing trace with hash 690618672, now seen corresponding path program 1 times [2024-11-13 15:42:51,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:51,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109747817] [2024-11-13 15:42:51,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:51,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:51,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:52,280 INFO L134 CoverageAnalysis]: Checked inductivity of 531 backedges. 113 proven. 0 refuted. 0 times theorem prover too weak. 418 trivial. 0 not checked. [2024-11-13 15:42:52,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:52,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109747817] [2024-11-13 15:42:52,281 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109747817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:52,281 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:52,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:42:52,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [851153895] [2024-11-13 15:42:52,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:52,283 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:42:52,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:52,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:52,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:42:52,284 INFO L87 Difference]: Start difference. First operand 23464 states and 24702 transitions. Second operand has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states 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 15:42:54,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:54,671 INFO L93 Difference]: Finished difference Result 54516 states and 57660 transitions. [2024-11-13 15:42:54,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:54,671 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 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 673 [2024-11-13 15:42:54,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:54,720 INFO L225 Difference]: With dead ends: 54516 [2024-11-13 15:42:54,720 INFO L226 Difference]: Without dead ends: 31054 [2024-11-13 15:42:54,734 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 15:42:54,735 INFO L432 NwaCegarLoop]: 230 mSDtfsCounter, 657 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1759 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 657 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 1956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 1759 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:54,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [657 Valid, 236 Invalid, 1956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 1759 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 15:42:54,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31054 states. [2024-11-13 15:42:55,200 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31054 to 30364. [2024-11-13 15:42:55,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30364 states, 30363 states have (on average 1.0495010374468925) internal successors, (31866), 30363 states have internal predecessors, (31866), 0 states have call successors, (0), 0 states 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 15:42:55,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30364 states to 30364 states and 31866 transitions. [2024-11-13 15:42:55,279 INFO L78 Accepts]: Start accepts. Automaton has 30364 states and 31866 transitions. Word has length 673 [2024-11-13 15:42:55,281 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:55,281 INFO L471 AbstractCegarLoop]: Abstraction has 30364 states and 31866 transitions. [2024-11-13 15:42:55,281 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.0) internal successors, (342), 3 states have internal predecessors, (342), 0 states have call successors, (0), 0 states 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 15:42:55,281 INFO L276 IsEmpty]: Start isEmpty. Operand 30364 states and 31866 transitions. [2024-11-13 15:42:55,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1265 [2024-11-13 15:42:55,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:55,322 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:55,322 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 15:42:55,322 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:55,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:55,323 INFO L85 PathProgramCache]: Analyzing trace with hash -1713273952, now seen corresponding path program 1 times [2024-11-13 15:42:55,324 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:55,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782358812] [2024-11-13 15:42:55,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:55,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:42:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 1560 backedges. 837 proven. 0 refuted. 0 times theorem prover too weak. 723 trivial. 0 not checked. [2024-11-13 15:42:56,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:42:56,670 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782358812] [2024-11-13 15:42:56,670 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782358812] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:42:56,670 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:42:56,671 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:42:56,671 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13228221] [2024-11-13 15:42:56,671 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:42:56,672 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:42:56,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:42:56,673 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:42:56,673 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:42:56,674 INFO L87 Difference]: Start difference. First operand 30364 states and 31866 transitions. Second operand has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states 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 15:42:59,094 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:42:59,094 INFO L93 Difference]: Finished difference Result 68316 states and 72013 transitions. [2024-11-13 15:42:59,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:42:59,095 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 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 1264 [2024-11-13 15:42:59,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:42:59,151 INFO L225 Difference]: With dead ends: 68316 [2024-11-13 15:42:59,151 INFO L226 Difference]: Without dead ends: 38644 [2024-11-13 15:42:59,171 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 15:42:59,171 INFO L432 NwaCegarLoop]: 943 mSDtfsCounter, 458 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1758 mSolverCounterSat, 218 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 458 SdHoareTripleChecker+Valid, 949 SdHoareTripleChecker+Invalid, 1976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 218 IncrementalHoareTripleChecker+Valid, 1758 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 15:42:59,172 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [458 Valid, 949 Invalid, 1976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [218 Valid, 1758 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 15:42:59,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38644 states. [2024-11-13 15:42:59,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38644 to 38644. [2024-11-13 15:42:59,585 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38644 states, 38643 states have (on average 1.047408327510804) internal successors, (40475), 38643 states have internal predecessors, (40475), 0 states have call successors, (0), 0 states 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 15:42:59,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38644 states to 38644 states and 40475 transitions. [2024-11-13 15:42:59,618 INFO L78 Accepts]: Start accepts. Automaton has 38644 states and 40475 transitions. Word has length 1264 [2024-11-13 15:42:59,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:42:59,619 INFO L471 AbstractCegarLoop]: Abstraction has 38644 states and 40475 transitions. [2024-11-13 15:42:59,620 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 266.0) internal successors, (798), 3 states have internal predecessors, (798), 0 states have call successors, (0), 0 states 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 15:42:59,620 INFO L276 IsEmpty]: Start isEmpty. Operand 38644 states and 40475 transitions. [2024-11-13 15:42:59,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1305 [2024-11-13 15:42:59,645 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:42:59,645 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:42:59,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 15:42:59,646 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:42:59,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:42:59,646 INFO L85 PathProgramCache]: Analyzing trace with hash -1065675522, now seen corresponding path program 1 times [2024-11-13 15:42:59,646 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:42:59,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [21828647] [2024-11-13 15:42:59,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:42:59,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:42:59,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:02,697 INFO L134 CoverageAnalysis]: Checked inductivity of 2253 backedges. 1412 proven. 614 refuted. 0 times theorem prover too weak. 227 trivial. 0 not checked. [2024-11-13 15:43:02,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:02,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [21828647] [2024-11-13 15:43:02,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [21828647] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:43:02,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2013859399] [2024-11-13 15:43:02,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:02,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:43:02,698 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:02,700 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:43:02,702 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 15:43:03,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:03,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 1537 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:03,201 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:03,426 INFO L134 CoverageAnalysis]: Checked inductivity of 2253 backedges. 1424 proven. 0 refuted. 0 times theorem prover too weak. 829 trivial. 0 not checked. [2024-11-13 15:43:03,426 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:43:03,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2013859399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:43:03,426 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:43:03,426 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-13 15:43:03,427 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842457445] [2024-11-13 15:43:03,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:43:03,428 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:43:03,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:03,429 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:43:03,429 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:43:03,430 INFO L87 Difference]: Start difference. First operand 38644 states and 40475 transitions. Second operand has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states 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 15:43:05,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:05,662 INFO L93 Difference]: Finished difference Result 91086 states and 95826 transitions. [2024-11-13 15:43:05,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:43:05,663 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 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 1304 [2024-11-13 15:43:05,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:43:05,709 INFO L225 Difference]: With dead ends: 91086 [2024-11-13 15:43:05,709 INFO L226 Difference]: Without dead ends: 53134 [2024-11-13 15:43:05,728 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1311 GetRequests, 1304 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:43:05,728 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 638 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 1721 mSolverCounterSat, 238 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 638 SdHoareTripleChecker+Valid, 138 SdHoareTripleChecker+Invalid, 1959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 238 IncrementalHoareTripleChecker+Valid, 1721 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:43:05,729 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [638 Valid, 138 Invalid, 1959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [238 Valid, 1721 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 15:43:05,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53134 states. [2024-11-13 15:43:06,170 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53134 to 52444. [2024-11-13 15:43:06,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52444 states, 52443 states have (on average 1.045077512728105) internal successors, (54807), 52443 states have internal predecessors, (54807), 0 states have call successors, (0), 0 states 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 15:43:06,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52444 states to 52444 states and 54807 transitions. [2024-11-13 15:43:06,252 INFO L78 Accepts]: Start accepts. Automaton has 52444 states and 54807 transitions. Word has length 1304 [2024-11-13 15:43:06,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:43:06,252 INFO L471 AbstractCegarLoop]: Abstraction has 52444 states and 54807 transitions. [2024-11-13 15:43:06,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 245.33333333333334) internal successors, (736), 3 states have internal predecessors, (736), 0 states have call successors, (0), 0 states 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 15:43:06,253 INFO L276 IsEmpty]: Start isEmpty. Operand 52444 states and 54807 transitions. [2024-11-13 15:43:06,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1391 [2024-11-13 15:43:06,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:43:06,272 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 15:43:06,286 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 15:43:06,472 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-13 15:43:06,473 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:43:06,473 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:06,474 INFO L85 PathProgramCache]: Analyzing trace with hash 137415444, now seen corresponding path program 1 times [2024-11-13 15:43:06,474 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:06,474 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842181429] [2024-11-13 15:43:06,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:06,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:08,998 INFO L134 CoverageAnalysis]: Checked inductivity of 2410 backedges. 1262 proven. 907 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-13 15:43:08,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:08,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842181429] [2024-11-13 15:43:08,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842181429] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 15:43:08,999 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [617618382] [2024-11-13 15:43:08,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:08,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 15:43:08,999 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 15:43:09,001 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 15:43:09,002 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 15:43:09,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:09,463 INFO L255 TraceCheckSpWp]: Trace formula consists of 1624 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 15:43:09,477 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 15:43:09,797 INFO L134 CoverageAnalysis]: Checked inductivity of 2410 backedges. 1430 proven. 0 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2024-11-13 15:43:09,798 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 15:43:09,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [617618382] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:43:09,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 15:43:09,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [8] total 9 [2024-11-13 15:43:09,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004921373] [2024-11-13 15:43:09,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:43:09,800 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:43:09,800 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:09,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:43:09,800 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:43:09,801 INFO L87 Difference]: Start difference. First operand 52444 states and 54807 transitions. Second operand has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states 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 15:43:12,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:12,033 INFO L93 Difference]: Finished difference Result 104196 states and 108921 transitions. [2024-11-13 15:43:12,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:43:12,034 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 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 1390 [2024-11-13 15:43:12,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:43:12,080 INFO L225 Difference]: With dead ends: 104196 [2024-11-13 15:43:12,080 INFO L226 Difference]: Without dead ends: 52444 [2024-11-13 15:43:12,106 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1397 GetRequests, 1390 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 15:43:12,107 INFO L432 NwaCegarLoop]: 881 mSDtfsCounter, 576 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 1605 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 576 SdHoareTripleChecker+Valid, 888 SdHoareTripleChecker+Invalid, 1825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 1605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 15:43:12,107 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [576 Valid, 888 Invalid, 1825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 1605 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 15:43:12,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52444 states. [2024-11-13 15:43:12,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52444 to 49684. [2024-11-13 15:43:12,491 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49684 states, 49683 states have (on average 1.0320230259847434) internal successors, (51274), 49683 states have internal predecessors, (51274), 0 states have call successors, (0), 0 states 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 15:43:12,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49684 states to 49684 states and 51274 transitions. [2024-11-13 15:43:12,557 INFO L78 Accepts]: Start accepts. Automaton has 49684 states and 51274 transitions. Word has length 1390 [2024-11-13 15:43:12,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:43:12,558 INFO L471 AbstractCegarLoop]: Abstraction has 49684 states and 51274 transitions. [2024-11-13 15:43:12,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 279.0) internal successors, (837), 3 states have internal predecessors, (837), 0 states have call successors, (0), 0 states 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 15:43:12,558 INFO L276 IsEmpty]: Start isEmpty. Operand 49684 states and 51274 transitions. [2024-11-13 15:43:12,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1404 [2024-11-13 15:43:12,725 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:43:12,725 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 15:43:12,747 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-13 15:43:12,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 15:43:12,929 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:43:12,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:12,930 INFO L85 PathProgramCache]: Analyzing trace with hash -930041197, now seen corresponding path program 1 times [2024-11-13 15:43:12,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:12,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569587408] [2024-11-13 15:43:12,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:12,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:13,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:15,112 INFO L134 CoverageAnalysis]: Checked inductivity of 1538 backedges. 1196 proven. 0 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2024-11-13 15:43:15,112 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:15,112 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569587408] [2024-11-13 15:43:15,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569587408] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:43:15,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:43:15,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:43:15,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851810798] [2024-11-13 15:43:15,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:43:15,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 15:43:15,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:15,116 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 15:43:15,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 15:43:15,117 INFO L87 Difference]: Start difference. First operand 49684 states and 51274 transitions. Second operand has 4 states, 4 states have (on average 265.75) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states 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 15:43:18,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:18,453 INFO L93 Difference]: Finished difference Result 99366 states and 102560 transitions. [2024-11-13 15:43:18,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 15:43:18,454 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 265.75) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 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 1403 [2024-11-13 15:43:18,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:43:18,496 INFO L225 Difference]: With dead ends: 99366 [2024-11-13 15:43:18,496 INFO L226 Difference]: Without dead ends: 50374 [2024-11-13 15:43:18,519 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 15:43:18,519 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 985 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 2642 mSolverCounterSat, 310 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 985 SdHoareTripleChecker+Valid, 83 SdHoareTripleChecker+Invalid, 2952 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 310 IncrementalHoareTripleChecker+Valid, 2642 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:43:18,519 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [985 Valid, 83 Invalid, 2952 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [310 Valid, 2642 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-13 15:43:18,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50374 states. [2024-11-13 15:43:18,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50374 to 49684. [2024-11-13 15:43:19,002 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49684 states, 49683 states have (on average 1.031942515548578) internal successors, (51270), 49683 states have internal predecessors, (51270), 0 states have call successors, (0), 0 states 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 15:43:19,044 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49684 states to 49684 states and 51270 transitions. [2024-11-13 15:43:19,045 INFO L78 Accepts]: Start accepts. Automaton has 49684 states and 51270 transitions. Word has length 1403 [2024-11-13 15:43:19,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:43:19,045 INFO L471 AbstractCegarLoop]: Abstraction has 49684 states and 51270 transitions. [2024-11-13 15:43:19,046 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 265.75) internal successors, (1063), 3 states have internal predecessors, (1063), 0 states have call successors, (0), 0 states 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 15:43:19,046 INFO L276 IsEmpty]: Start isEmpty. Operand 49684 states and 51270 transitions. [2024-11-13 15:43:19,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1425 [2024-11-13 15:43:19,063 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:43:19,063 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 15:43:19,064 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 15:43:19,064 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:43:19,064 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:19,064 INFO L85 PathProgramCache]: Analyzing trace with hash 1445135193, now seen corresponding path program 1 times [2024-11-13 15:43:19,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:19,065 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812372822] [2024-11-13 15:43:19,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:19,065 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:19,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:20,088 INFO L134 CoverageAnalysis]: Checked inductivity of 1728 backedges. 151 proven. 0 refuted. 0 times theorem prover too weak. 1577 trivial. 0 not checked. [2024-11-13 15:43:20,088 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:20,088 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812372822] [2024-11-13 15:43:20,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812372822] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:43:20,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:43:20,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:43:20,089 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115488650] [2024-11-13 15:43:20,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:43:20,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:43:20,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:20,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:43:20,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:43:20,095 INFO L87 Difference]: Start difference. First operand 49684 states and 51270 transitions. Second operand has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states 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 15:43:22,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:22,412 INFO L93 Difference]: Finished difference Result 100746 states and 103941 transitions. [2024-11-13 15:43:22,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:43:22,413 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 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 1424 [2024-11-13 15:43:22,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:43:22,455 INFO L225 Difference]: With dead ends: 100746 [2024-11-13 15:43:22,455 INFO L226 Difference]: Without dead ends: 51754 [2024-11-13 15:43:22,474 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 15:43:22,475 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 669 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1701 mSolverCounterSat, 266 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 669 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 1967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 266 IncrementalHoareTripleChecker+Valid, 1701 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 15:43:22,475 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [669 Valid, 70 Invalid, 1967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [266 Valid, 1701 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 15:43:22,509 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51754 states. [2024-11-13 15:43:22,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51754 to 48994. [2024-11-13 15:43:22,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48994 states, 48993 states have (on average 1.0310452513624395) internal successors, (50514), 48993 states have internal predecessors, (50514), 0 states have call successors, (0), 0 states 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 15:43:23,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48994 states to 48994 states and 50514 transitions. [2024-11-13 15:43:23,041 INFO L78 Accepts]: Start accepts. Automaton has 48994 states and 50514 transitions. Word has length 1424 [2024-11-13 15:43:23,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:43:23,042 INFO L471 AbstractCegarLoop]: Abstraction has 48994 states and 50514 transitions. [2024-11-13 15:43:23,042 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 186.33333333333334) internal successors, (559), 3 states have internal predecessors, (559), 0 states have call successors, (0), 0 states 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 15:43:23,042 INFO L276 IsEmpty]: Start isEmpty. Operand 48994 states and 50514 transitions. [2024-11-13 15:43:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1483 [2024-11-13 15:43:23,062 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 15:43:23,062 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 15:43:23,063 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 15:43:23,063 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 15:43:23,063 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 15:43:23,063 INFO L85 PathProgramCache]: Analyzing trace with hash 443395138, now seen corresponding path program 1 times [2024-11-13 15:43:23,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 15:43:23,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2073018836] [2024-11-13 15:43:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 15:43:23,064 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 15:43:23,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 15:43:24,781 INFO L134 CoverageAnalysis]: Checked inductivity of 1905 backedges. 1077 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2024-11-13 15:43:24,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 15:43:24,781 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2073018836] [2024-11-13 15:43:24,781 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2073018836] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 15:43:24,781 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 15:43:24,781 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 15:43:24,781 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281376946] [2024-11-13 15:43:24,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 15:43:24,782 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 15:43:24,782 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 15:43:24,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 15:43:24,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 15:43:24,784 INFO L87 Difference]: Start difference. First operand 48994 states and 50514 transitions. Second operand has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states 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 15:43:26,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 15:43:26,820 INFO L93 Difference]: Finished difference Result 97294 states and 100334 transitions. [2024-11-13 15:43:26,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 15:43:26,820 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 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 1482 [2024-11-13 15:43:26,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 15:43:26,822 INFO L225 Difference]: With dead ends: 97294 [2024-11-13 15:43:26,822 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 15:43:26,845 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 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 15:43:26,846 INFO L432 NwaCegarLoop]: 737 mSDtfsCounter, 370 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 1673 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 370 SdHoareTripleChecker+Valid, 743 SdHoareTripleChecker+Invalid, 1830 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 1673 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 15:43:26,846 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [370 Valid, 743 Invalid, 1830 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 1673 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 15:43:26,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 15:43:26,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 15:43:26,847 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 15:43:26,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 15:43:26,847 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1482 [2024-11-13 15:43:26,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 15:43:26,848 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 15:43:26,848 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 315.3333333333333) internal successors, (946), 3 states have internal predecessors, (946), 0 states have call successors, (0), 0 states 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 15:43:26,848 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 15:43:26,849 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 15:43:26,855 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 15:43:26,860 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 15:43:26,864 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 15:43:26,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 15:43:28,320 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 15:43:28,337 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 03:43:28 BoogieIcfgContainer [2024-11-13 15:43:28,338 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 15:43:28,338 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 15:43:28,338 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 15:43:28,339 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 15:43:28,340 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 03:42:13" (3/4) ... [2024-11-13 15:43:28,342 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 15:43:28,409 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-11-13 15:43:28,413 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 15:43:28,418 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 15:43:28,422 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 15:43:29,051 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 15:43:29,051 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 15:43:29,055 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 15:43:29,056 INFO L158 Benchmark]: Toolchain (without parser) took 82549.20ms. Allocated memory was 142.6MB in the beginning and 922.7MB in the end (delta: 780.1MB). Free memory was 109.5MB in the beginning and 607.9MB in the end (delta: -498.4MB). Peak memory consumption was 1.7GB. Max. memory is 16.1GB. [2024-11-13 15:43:29,056 INFO L158 Benchmark]: CDTParser took 1.45ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 15:43:29,056 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1561.85ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 109.2MB in the beginning and 349.3MB in the end (delta: -240.1MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. [2024-11-13 15:43:29,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 330.11ms. Allocated memory is still 402.7MB. Free memory was 349.3MB in the beginning and 307.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 15:43:29,057 INFO L158 Benchmark]: Boogie Preprocessor took 334.92ms. Allocated memory is still 402.7MB. Free memory was 307.4MB in the beginning and 252.4MB in the end (delta: 55.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-13 15:43:29,057 INFO L158 Benchmark]: RCFGBuilder took 4761.43ms. Allocated memory is still 402.7MB. Free memory was 252.4MB in the beginning and 171.6MB in the end (delta: 80.8MB). Peak memory consumption was 149.5MB. Max. memory is 16.1GB. [2024-11-13 15:43:29,058 INFO L158 Benchmark]: TraceAbstraction took 74836.02ms. Allocated memory was 402.7MB in the beginning and 2.5GB in the end (delta: 2.1GB). Free memory was 171.6MB in the beginning and 701.2MB in the end (delta: -529.6MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. [2024-11-13 15:43:29,062 INFO L158 Benchmark]: Witness Printer took 716.58ms. Allocated memory was 2.5GB in the beginning and 922.7MB in the end (delta: -1.5GB). Free memory was 701.2MB in the beginning and 607.9MB in the end (delta: 93.3MB). Peak memory consumption was 9.5MB. Max. memory is 16.1GB. [2024-11-13 15:43:29,064 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.45ms. Allocated memory is still 142.6MB. Free memory is still 81.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1561.85ms. Allocated memory was 142.6MB in the beginning and 402.7MB in the end (delta: 260.0MB). Free memory was 109.2MB in the beginning and 349.3MB in the end (delta: -240.1MB). Peak memory consumption was 71.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 330.11ms. Allocated memory is still 402.7MB. Free memory was 349.3MB in the beginning and 307.4MB in the end (delta: 41.9MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 334.92ms. Allocated memory is still 402.7MB. Free memory was 307.4MB in the beginning and 252.4MB in the end (delta: 55.0MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * RCFGBuilder took 4761.43ms. Allocated memory is still 402.7MB. Free memory was 252.4MB in the beginning and 171.6MB in the end (delta: 80.8MB). Peak memory consumption was 149.5MB. Max. memory is 16.1GB. * TraceAbstraction took 74836.02ms. Allocated memory was 402.7MB in the beginning and 2.5GB in the end (delta: 2.1GB). Free memory was 171.6MB in the beginning and 701.2MB in the end (delta: -529.6MB). Peak memory consumption was 1.5GB. Max. memory is 16.1GB. * Witness Printer took 716.58ms. Allocated memory was 2.5GB in the beginning and 922.7MB in the end (delta: -1.5GB). Free memory was 701.2MB in the beginning and 607.9MB in the end (delta: 93.3MB). Peak memory consumption was 9.5MB. 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: 139]: 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: 73.3s, OverallIterations: 16, TraceHistogramMax: 8, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.4s, AutomataDifference: 48.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11562 SdHoareTripleChecker+Valid, 44.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11562 mSDsluCounter, 9069 SdHoareTripleChecker+Invalid, 36.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 125 mSDsCounter, 6362 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 33428 IncrementalHoareTripleChecker+Invalid, 39790 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 6362 mSolverCounterUnsat, 8944 mSDtfsCounter, 33428 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2973 GetRequests, 2938 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=52444occurred in iteration=12, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 4.9s AutomataMinimizationTime, 16 MinimizatonAttempts, 11730 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.5s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 14254 NumberOfCodeBlocks, 14254 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 14235 ConstructedInterpolants, 0 QuantifiedInterpolants, 39398 SizeOfPredicates, 0 NumberOfNonLiveVariables, 3457 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 19 InterpolantComputations, 16 PerfectInterpolantSequences, 16293/17841 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: (((((((((((6 <= a15) && (a3 <= 115)) && (a24 == 1)) || ((a24 == 0) && (a15 <= 4))) || (((3 <= a24) && (a15 <= 4)) && (a18 == 12))) || ((a18 <= 11) && (a24 <= 3))) || (((6 <= a15) && (a24 == 3)) && (a3 <= 115))) || (((a15 != 4) && (a24 <= 3)) && (a18 == 12))) || ((a18 <= 11) && (a15 <= 5))) || ((a24 == 1) && (a15 <= 4))) || ((((a3 <= 115) && (a15 != 4)) && (a18 == 12)) && (a15 <= 5))) RESULT: Ultimate proved your program to be correct! [2024-11-13 15:43:29,108 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a1d54f46-ad13-4d8f-a3a2-584deed1de40/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE