./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label17.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_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/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_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label17.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/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_5997ae7a-122a-48ea-8f86-7ab45f4401ca/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 42b374d0017cdae74eebab609ba5393370e8c987522e66a98f57a11c3f33505a --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:46:21,366 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:46:21,476 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:46:21,484 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:46:21,484 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:46:21,507 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:46:21,508 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:46:21,508 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:46:21,510 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:46:21,510 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:46:21,510 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:46:21,510 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:46:21,511 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:46:21,511 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:46:21,511 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:46:21,511 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:46:21,511 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:46:21,511 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:46:21,511 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:46:21,512 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:46:21,512 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:46:21,512 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:46:21,512 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:46:21,512 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:46:21,512 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:46:21,512 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:46:21,512 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:46:21,512 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:46:21,512 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:46:21,513 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:46:21,515 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:46:21,515 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:46:21,515 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:46:21,516 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:46:21,516 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:46:21,516 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:46:21,516 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:46:21,517 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:46:21,517 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:46:21,517 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:46:21,517 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:46:21,517 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:46:21,517 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_5997ae7a-122a-48ea-8f86-7ab45f4401ca/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 -> 42b374d0017cdae74eebab609ba5393370e8c987522e66a98f57a11c3f33505a [2024-11-13 12:46:21,850 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:46:21,866 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:46:21,869 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:46:21,870 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:46:21,871 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:46:21,874 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem15_label17.c Unable to find full path for "g++" [2024-11-13 12:46:23,788 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:46:24,419 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:46:24,420 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/sv-benchmarks/c/eca-rers2012/Problem15_label17.c [2024-11-13 12:46:24,447 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/data/7984da53a/66e4464cb77548d08ba224c4f7f0d974/FLAG32269893b [2024-11-13 12:46:24,865 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/data/7984da53a/66e4464cb77548d08ba224c4f7f0d974 [2024-11-13 12:46:24,868 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:46:24,869 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:46:24,871 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:46:24,871 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:46:24,876 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:46:24,877 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:46:24" (1/1) ... [2024-11-13 12:46:24,878 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f46b9ae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:24, skipping insertion in model container [2024-11-13 12:46:24,878 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:46:24" (1/1) ... [2024-11-13 12:46:24,943 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:46:25,190 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_5997ae7a-122a-48ea-8f86-7ab45f4401ca/sv-benchmarks/c/eca-rers2012/Problem15_label17.c[7664,7677] [2024-11-13 12:46:25,656 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:46:25,668 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:46:25,706 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_5997ae7a-122a-48ea-8f86-7ab45f4401ca/sv-benchmarks/c/eca-rers2012/Problem15_label17.c[7664,7677] [2024-11-13 12:46:25,997 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:46:26,025 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:46:26,025 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26 WrapperNode [2024-11-13 12:46:26,026 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:46:26,027 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:46:26,027 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:46:26,027 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:46:26,035 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,066 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,264 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-13 12:46:26,264 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:46:26,266 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:46:26,266 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:46:26,266 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:46:26,275 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,275 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,307 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,508 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 12:46:26,508 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,508 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,602 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,627 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,661 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,671 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:46:26,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:46:26,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:46:26,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:46:26,762 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (1/1) ... [2024-11-13 12:46:26,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:46:26,779 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:46:26,794 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:46:26,801 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:46:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:46:26,826 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:46:26,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:46:26,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:46:26,919 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:46:26,923 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 12:46:30,622 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-13 12:46:30,622 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 12:46:30,656 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 12:46:30,656 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 12:46:30,656 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:46:30 BoogieIcfgContainer [2024-11-13 12:46:30,656 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 12:46:30,661 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 12:46:30,661 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 12:46:30,669 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 12:46:30,669 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:46:24" (1/3) ... [2024-11-13 12:46:30,670 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f34c591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:46:30, skipping insertion in model container [2024-11-13 12:46:30,670 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:46:26" (2/3) ... [2024-11-13 12:46:30,671 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f34c591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 12:46:30, skipping insertion in model container [2024-11-13 12:46:30,671 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:46:30" (3/3) ... [2024-11-13 12:46:30,672 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label17.c [2024-11-13 12:46:30,690 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 12:46:30,692 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem15_label17.c that has 1 procedures, 424 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 12:46:30,781 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 12:46:30,797 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;@22640376, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 12:46:30,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 12:46:30,803 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states 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 12:46:30,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-13 12:46:30,814 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:30,815 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:46:30,816 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:30,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:30,822 INFO L85 PathProgramCache]: Analyzing trace with hash -922273680, now seen corresponding path program 1 times [2024-11-13 12:46:30,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:30,831 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144149124] [2024-11-13 12:46:30,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:30,832 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:30,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:31,342 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 12:46:31,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:31,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144149124] [2024-11-13 12:46:31,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144149124] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:31,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:31,346 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:31,347 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264141585] [2024-11-13 12:46:31,350 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:31,354 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:31,355 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:31,377 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:31,378 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:31,383 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 12:46:34,731 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:34,731 INFO L93 Difference]: Finished difference Result 1191 states and 2157 transitions. [2024-11-13 12:46:34,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:34,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 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 63 [2024-11-13 12:46:34,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:34,749 INFO L225 Difference]: With dead ends: 1191 [2024-11-13 12:46:34,749 INFO L226 Difference]: Without dead ends: 688 [2024-11-13 12:46:34,754 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 12:46:34,757 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 308 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:34,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 230 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 3.2s Time] [2024-11-13 12:46:34,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-13 12:46:34,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 680. [2024-11-13 12:46:34,847 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 679 states have (on average 1.609720176730486) internal successors, (1093), 679 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states 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 12:46:34,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1093 transitions. [2024-11-13 12:46:34,856 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1093 transitions. Word has length 63 [2024-11-13 12:46:34,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:34,857 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 1093 transitions. [2024-11-13 12:46:34,857 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 21.0) internal successors, (63), 2 states have internal predecessors, (63), 0 states have call successors, (0), 0 states 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 12:46:34,857 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1093 transitions. [2024-11-13 12:46:34,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-11-13 12:46:34,862 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:34,862 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:46:34,863 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 12:46:34,863 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:34,864 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:34,864 INFO L85 PathProgramCache]: Analyzing trace with hash -267090752, now seen corresponding path program 1 times [2024-11-13 12:46:34,864 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:34,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1697452746] [2024-11-13 12:46:34,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:34,865 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:34,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:35,335 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:46:35,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:35,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1697452746] [2024-11-13 12:46:35,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1697452746] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:35,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:35,336 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:35,336 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779268264] [2024-11-13 12:46:35,336 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:35,340 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:35,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:35,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:35,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:35,342 INFO L87 Difference]: Start difference. First operand 680 states and 1093 transitions. Second operand has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states 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 12:46:37,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:37,628 INFO L93 Difference]: Finished difference Result 1964 states and 3171 transitions. [2024-11-13 12:46:37,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:37,628 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 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 131 [2024-11-13 12:46:37,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:37,634 INFO L225 Difference]: With dead ends: 1964 [2024-11-13 12:46:37,634 INFO L226 Difference]: Without dead ends: 1286 [2024-11-13 12:46:37,640 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 12:46:37,641 INFO L432 NwaCegarLoop]: 294 mSDtfsCounter, 282 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 361 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:37,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 361 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 12:46:37,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2024-11-13 12:46:37,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1281. [2024-11-13 12:46:37,689 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 1.3953125) internal successors, (1786), 1280 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states 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 12:46:37,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1786 transitions. [2024-11-13 12:46:37,697 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1786 transitions. Word has length 131 [2024-11-13 12:46:37,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:37,698 INFO L471 AbstractCegarLoop]: Abstraction has 1281 states and 1786 transitions. [2024-11-13 12:46:37,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.666666666666664) internal successors, (131), 2 states have internal predecessors, (131), 0 states have call successors, (0), 0 states 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 12:46:37,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1786 transitions. [2024-11-13 12:46:37,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-13 12:46:37,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:37,702 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:46:37,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 12:46:37,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:37,703 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:37,703 INFO L85 PathProgramCache]: Analyzing trace with hash 377861588, now seen corresponding path program 1 times [2024-11-13 12:46:37,703 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:37,704 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149791489] [2024-11-13 12:46:37,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:37,704 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:37,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:38,560 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:46:38,562 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:38,562 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149791489] [2024-11-13 12:46:38,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149791489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:38,563 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:38,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:38,564 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1909749819] [2024-11-13 12:46:38,564 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:38,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:38,565 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:38,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:38,567 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:38,567 INFO L87 Difference]: Start difference. First operand 1281 states and 1786 transitions. Second operand has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states 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 12:46:40,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:40,993 INFO L93 Difference]: Finished difference Result 2859 states and 3905 transitions. [2024-11-13 12:46:40,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:40,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 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 139 [2024-11-13 12:46:40,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:41,001 INFO L225 Difference]: With dead ends: 2859 [2024-11-13 12:46:41,001 INFO L226 Difference]: Without dead ends: 1580 [2024-11-13 12:46:41,003 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 12:46:41,004 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 225 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 225 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 917 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:41,004 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [225 Valid, 359 Invalid, 917 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 12:46:41,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1580 states. [2024-11-13 12:46:41,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1580 to 1580. [2024-11-13 12:46:41,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1580 states, 1579 states have (on average 1.3242558581380621) internal successors, (2091), 1579 states have internal predecessors, (2091), 0 states have call successors, (0), 0 states 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 12:46:41,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1580 states to 1580 states and 2091 transitions. [2024-11-13 12:46:41,046 INFO L78 Accepts]: Start accepts. Automaton has 1580 states and 2091 transitions. Word has length 139 [2024-11-13 12:46:41,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:41,048 INFO L471 AbstractCegarLoop]: Abstraction has 1580 states and 2091 transitions. [2024-11-13 12:46:41,048 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.333333333333336) internal successors, (139), 2 states have internal predecessors, (139), 0 states have call successors, (0), 0 states 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 12:46:41,052 INFO L276 IsEmpty]: Start isEmpty. Operand 1580 states and 2091 transitions. [2024-11-13 12:46:41,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-13 12:46:41,059 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:41,060 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 12:46:41,060 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 12:46:41,060 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:41,060 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:41,061 INFO L85 PathProgramCache]: Analyzing trace with hash -1408326870, now seen corresponding path program 1 times [2024-11-13 12:46:41,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:41,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [722718061] [2024-11-13 12:46:41,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:41,061 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:41,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:41,466 INFO L134 CoverageAnalysis]: Checked inductivity of 196 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-13 12:46:41,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:41,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [722718061] [2024-11-13 12:46:41,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [722718061] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:41,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:41,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:46:41,466 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [724656191] [2024-11-13 12:46:41,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:41,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:41,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:41,468 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:41,468 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:41,468 INFO L87 Difference]: Start difference. First operand 1580 states and 2091 transitions. Second operand has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 12:46:43,716 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:43,716 INFO L93 Difference]: Finished difference Result 4065 states and 5551 transitions. [2024-11-13 12:46:43,717 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:43,717 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 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 230 [2024-11-13 12:46:43,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:43,728 INFO L225 Difference]: With dead ends: 4065 [2024-11-13 12:46:43,729 INFO L226 Difference]: Without dead ends: 2786 [2024-11-13 12:46:43,731 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 12:46:43,733 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 265 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:43,735 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 635 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 12:46:43,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2024-11-13 12:46:43,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2786. [2024-11-13 12:46:43,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2786 states, 2785 states have (on average 1.2204667863554757) internal successors, (3399), 2785 states have internal predecessors, (3399), 0 states have call successors, (0), 0 states 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 12:46:43,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2786 states to 2786 states and 3399 transitions. [2024-11-13 12:46:43,800 INFO L78 Accepts]: Start accepts. Automaton has 2786 states and 3399 transitions. Word has length 230 [2024-11-13 12:46:43,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:43,802 INFO L471 AbstractCegarLoop]: Abstraction has 2786 states and 3399 transitions. [2024-11-13 12:46:43,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.0) internal successors, (156), 3 states have internal predecessors, (156), 0 states have call successors, (0), 0 states 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 12:46:43,803 INFO L276 IsEmpty]: Start isEmpty. Operand 2786 states and 3399 transitions. [2024-11-13 12:46:43,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 237 [2024-11-13 12:46:43,806 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:43,806 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 12:46:43,807 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 12:46:43,807 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:43,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:43,807 INFO L85 PathProgramCache]: Analyzing trace with hash 1172561142, now seen corresponding path program 1 times [2024-11-13 12:46:43,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:43,808 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824178810] [2024-11-13 12:46:43,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:43,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:43,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:44,169 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 79 trivial. 0 not checked. [2024-11-13 12:46:44,169 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:44,170 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824178810] [2024-11-13 12:46:44,170 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824178810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:44,170 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:44,170 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 12:46:44,170 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400698631] [2024-11-13 12:46:44,170 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:44,170 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:44,170 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:44,171 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:44,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:44,171 INFO L87 Difference]: Start difference. First operand 2786 states and 3399 transitions. Second operand has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 12:46:46,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:46,158 INFO L93 Difference]: Finished difference Result 6472 states and 8164 transitions. [2024-11-13 12:46:46,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:46,158 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 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 236 [2024-11-13 12:46:46,159 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:46,173 INFO L225 Difference]: With dead ends: 6472 [2024-11-13 12:46:46,173 INFO L226 Difference]: Without dead ends: 3987 [2024-11-13 12:46:46,176 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 12:46:46,177 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 220 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:46,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 364 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-13 12:46:46,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3987 states. [2024-11-13 12:46:46,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3987 to 3686. [2024-11-13 12:46:46,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3686 states, 3685 states have (on average 1.1959294436906378) internal successors, (4407), 3685 states have internal predecessors, (4407), 0 states have call successors, (0), 0 states 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 12:46:46,265 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3686 states to 3686 states and 4407 transitions. [2024-11-13 12:46:46,266 INFO L78 Accepts]: Start accepts. Automaton has 3686 states and 4407 transitions. Word has length 236 [2024-11-13 12:46:46,266 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:46,266 INFO L471 AbstractCegarLoop]: Abstraction has 3686 states and 4407 transitions. [2024-11-13 12:46:46,266 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 52.666666666666664) internal successors, (158), 2 states have internal predecessors, (158), 0 states have call successors, (0), 0 states 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 12:46:46,266 INFO L276 IsEmpty]: Start isEmpty. Operand 3686 states and 4407 transitions. [2024-11-13 12:46:46,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 346 [2024-11-13 12:46:46,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:46,272 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:46,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 12:46:46,273 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:46,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:46,274 INFO L85 PathProgramCache]: Analyzing trace with hash -2003837557, now seen corresponding path program 1 times [2024-11-13 12:46:46,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:46,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617420832] [2024-11-13 12:46:46,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:46,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:46,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:46,804 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 60 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:46:46,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:46,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617420832] [2024-11-13 12:46:46,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617420832] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:46,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:46,805 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:46:46,805 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [89768776] [2024-11-13 12:46:46,805 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:46,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:46,806 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:46,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:46,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:46,807 INFO L87 Difference]: Start difference. First operand 3686 states and 4407 transitions. Second operand has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states 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 12:46:49,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:49,404 INFO L93 Difference]: Finished difference Result 8279 states and 10190 transitions. [2024-11-13 12:46:49,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:49,405 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 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 345 [2024-11-13 12:46:49,405 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:49,420 INFO L225 Difference]: With dead ends: 8279 [2024-11-13 12:46:49,420 INFO L226 Difference]: Without dead ends: 4894 [2024-11-13 12:46:49,424 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 12:46:49,425 INFO L432 NwaCegarLoop]: 565 mSDtfsCounter, 267 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 267 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:49,426 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [267 Valid, 604 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2024-11-13 12:46:49,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4894 states. [2024-11-13 12:46:49,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4894 to 4592. [2024-11-13 12:46:49,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4592 states, 4591 states have (on average 1.184055761272054) internal successors, (5436), 4591 states have internal predecessors, (5436), 0 states have call successors, (0), 0 states 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 12:46:49,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4592 states to 4592 states and 5436 transitions. [2024-11-13 12:46:49,520 INFO L78 Accepts]: Start accepts. Automaton has 4592 states and 5436 transitions. Word has length 345 [2024-11-13 12:46:49,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:49,521 INFO L471 AbstractCegarLoop]: Abstraction has 4592 states and 5436 transitions. [2024-11-13 12:46:49,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.0) internal successors, (345), 3 states have internal predecessors, (345), 0 states have call successors, (0), 0 states 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 12:46:49,522 INFO L276 IsEmpty]: Start isEmpty. Operand 4592 states and 5436 transitions. [2024-11-13 12:46:49,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 351 [2024-11-13 12:46:49,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:49,528 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 12:46:49,528 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 12:46:49,528 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:49,529 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:49,529 INFO L85 PathProgramCache]: Analyzing trace with hash 649501141, now seen corresponding path program 1 times [2024-11-13 12:46:49,529 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:49,529 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378763019] [2024-11-13 12:46:49,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:49,530 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:49,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:50,021 INFO L134 CoverageAnalysis]: Checked inductivity of 211 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-13 12:46:50,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:50,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378763019] [2024-11-13 12:46:50,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378763019] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:50,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:46:50,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:46:50,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455618273] [2024-11-13 12:46:50,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:50,022 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:50,022 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:50,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:50,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:46:50,025 INFO L87 Difference]: Start difference. First operand 4592 states and 5436 transitions. Second operand has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states 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 12:46:52,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:52,369 INFO L93 Difference]: Finished difference Result 10079 states and 12234 transitions. [2024-11-13 12:46:52,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:52,370 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 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 350 [2024-11-13 12:46:52,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:52,383 INFO L225 Difference]: With dead ends: 10079 [2024-11-13 12:46:52,384 INFO L226 Difference]: Without dead ends: 5788 [2024-11-13 12:46:52,389 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 12:46:52,389 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 265 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:52,390 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 619 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 12:46:52,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5788 states. [2024-11-13 12:46:52,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5788 to 5784. [2024-11-13 12:46:52,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5784 states, 5783 states have (on average 1.1663496455127096) internal successors, (6745), 5783 states have internal predecessors, (6745), 0 states have call successors, (0), 0 states 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 12:46:52,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5784 states to 5784 states and 6745 transitions. [2024-11-13 12:46:52,496 INFO L78 Accepts]: Start accepts. Automaton has 5784 states and 6745 transitions. Word has length 350 [2024-11-13 12:46:52,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:52,497 INFO L471 AbstractCegarLoop]: Abstraction has 5784 states and 6745 transitions. [2024-11-13 12:46:52,497 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 87.0) internal successors, (261), 3 states have internal predecessors, (261), 0 states have call successors, (0), 0 states 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 12:46:52,497 INFO L276 IsEmpty]: Start isEmpty. Operand 5784 states and 6745 transitions. [2024-11-13 12:46:52,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2024-11-13 12:46:52,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:52,513 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:46:52,513 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 12:46:52,513 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:52,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:52,514 INFO L85 PathProgramCache]: Analyzing trace with hash -695241107, now seen corresponding path program 1 times [2024-11-13 12:46:52,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:52,514 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2020946878] [2024-11-13 12:46:52,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:52,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:52,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:53,557 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 426 proven. 39 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-13 12:46:53,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:53,559 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2020946878] [2024-11-13 12:46:53,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2020946878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:46:53,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1369759059] [2024-11-13 12:46:53,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:53,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:46:53,560 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:46:53,565 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:46:53,567 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 12:46:53,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:53,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 623 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:46:53,890 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:46:54,449 INFO L134 CoverageAnalysis]: Checked inductivity of 526 backedges. 375 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-13 12:46:54,450 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:46:54,450 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1369759059] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:54,450 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:46:54,450 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 12:46:54,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831259149] [2024-11-13 12:46:54,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:54,452 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:54,452 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:54,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:54,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:46:54,453 INFO L87 Difference]: Start difference. First operand 5784 states and 6745 transitions. Second operand has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:46:56,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:46:56,634 INFO L93 Difference]: Finished difference Result 14556 states and 17044 transitions. [2024-11-13 12:46:56,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:46:56,634 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 514 [2024-11-13 12:46:56,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:46:56,659 INFO L225 Difference]: With dead ends: 14556 [2024-11-13 12:46:56,659 INFO L226 Difference]: Without dead ends: 9073 [2024-11-13 12:46:56,663 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 517 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:46:56,664 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 148 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 905 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 315 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 905 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:46:56,664 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 315 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 905 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 12:46:56,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9073 states. [2024-11-13 12:46:56,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9073 to 7578. [2024-11-13 12:46:56,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7578 states, 7577 states have (on average 1.1483436716378514) internal successors, (8701), 7577 states have internal predecessors, (8701), 0 states have call successors, (0), 0 states 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 12:46:56,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7578 states to 7578 states and 8701 transitions. [2024-11-13 12:46:56,803 INFO L78 Accepts]: Start accepts. Automaton has 7578 states and 8701 transitions. Word has length 514 [2024-11-13 12:46:56,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:46:56,804 INFO L471 AbstractCegarLoop]: Abstraction has 7578 states and 8701 transitions. [2024-11-13 12:46:56,805 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 121.66666666666667) internal successors, (365), 3 states have internal predecessors, (365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 12:46:56,805 INFO L276 IsEmpty]: Start isEmpty. Operand 7578 states and 8701 transitions. [2024-11-13 12:46:56,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 548 [2024-11-13 12:46:56,811 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:46:56,812 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 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] [2024-11-13 12:46:56,835 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 12:46:57,012 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:46:57,013 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:46:57,013 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:46:57,013 INFO L85 PathProgramCache]: Analyzing trace with hash -1024198999, now seen corresponding path program 1 times [2024-11-13 12:46:57,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:46:57,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579214147] [2024-11-13 12:46:57,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:57,014 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:46:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:58,078 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 531 proven. 39 refuted. 0 times theorem prover too weak. 197 trivial. 0 not checked. [2024-11-13 12:46:58,079 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:46:58,079 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579214147] [2024-11-13 12:46:58,079 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579214147] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:46:58,080 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [874124720] [2024-11-13 12:46:58,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:46:58,080 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:46:58,080 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:46:58,082 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:46:58,085 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 12:46:58,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:46:58,382 INFO L255 TraceCheckSpWp]: Trace formula consists of 679 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:46:58,393 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:46:58,555 INFO L134 CoverageAnalysis]: Checked inductivity of 767 backedges. 243 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-11-13 12:46:58,555 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:46:58,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [874124720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:46:58,556 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:46:58,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 12:46:58,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017288571] [2024-11-13 12:46:58,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:46:58,557 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:46:58,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:46:58,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:46:58,558 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:46:58,558 INFO L87 Difference]: Start difference. First operand 7578 states and 8701 transitions. Second operand has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states 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 12:47:00,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:00,462 INFO L93 Difference]: Finished difference Result 17246 states and 20051 transitions. [2024-11-13 12:47:00,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:00,463 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 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 547 [2024-11-13 12:47:00,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:00,485 INFO L225 Difference]: With dead ends: 17246 [2024-11-13 12:47:00,485 INFO L226 Difference]: Without dead ends: 9969 [2024-11-13 12:47:00,491 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 550 GetRequests, 546 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:47:00,491 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 354 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:00,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 447 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 12:47:00,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9969 states. [2024-11-13 12:47:00,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9969 to 9969. [2024-11-13 12:47:00,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9969 states, 9968 states have (on average 1.1498796147672552) internal successors, (11462), 9968 states have internal predecessors, (11462), 0 states have call successors, (0), 0 states 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 12:47:00,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9969 states to 9969 states and 11462 transitions. [2024-11-13 12:47:00,644 INFO L78 Accepts]: Start accepts. Automaton has 9969 states and 11462 transitions. Word has length 547 [2024-11-13 12:47:00,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:00,645 INFO L471 AbstractCegarLoop]: Abstraction has 9969 states and 11462 transitions. [2024-11-13 12:47:00,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 88.33333333333333) internal successors, (265), 3 states have internal predecessors, (265), 0 states have call successors, (0), 0 states 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 12:47:00,647 INFO L276 IsEmpty]: Start isEmpty. Operand 9969 states and 11462 transitions. [2024-11-13 12:47:00,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 552 [2024-11-13 12:47:00,653 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:00,653 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 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] [2024-11-13 12:47:00,677 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 12:47:00,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:00,854 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:00,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:00,855 INFO L85 PathProgramCache]: Analyzing trace with hash 652438387, now seen corresponding path program 1 times [2024-11-13 12:47:00,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:00,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973679820] [2024-11-13 12:47:00,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:00,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:00,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:01,524 INFO L134 CoverageAnalysis]: Checked inductivity of 779 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-13 12:47:01,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:01,525 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973679820] [2024-11-13 12:47:01,525 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973679820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:01,525 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:01,525 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:01,525 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966453138] [2024-11-13 12:47:01,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:01,526 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:01,526 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:01,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:01,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:01,528 INFO L87 Difference]: Start difference. First operand 9969 states and 11462 transitions. Second operand has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states 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 12:47:03,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:03,723 INFO L93 Difference]: Finished difference Result 24136 states and 28000 transitions. [2024-11-13 12:47:03,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:03,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 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 551 [2024-11-13 12:47:03,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:03,753 INFO L225 Difference]: With dead ends: 24136 [2024-11-13 12:47:03,754 INFO L226 Difference]: Without dead ends: 14468 [2024-11-13 12:47:03,761 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 12:47:03,762 INFO L432 NwaCegarLoop]: 589 mSDtfsCounter, 246 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 622 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:03,762 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 622 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 12:47:03,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14468 states. [2024-11-13 12:47:03,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14468 to 14158. [2024-11-13 12:47:03,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14158 states, 14157 states have (on average 1.1347743165924984) internal successors, (16065), 14157 states have internal predecessors, (16065), 0 states have call successors, (0), 0 states 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 12:47:04,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14158 states to 14158 states and 16065 transitions. [2024-11-13 12:47:04,025 INFO L78 Accepts]: Start accepts. Automaton has 14158 states and 16065 transitions. Word has length 551 [2024-11-13 12:47:04,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:04,026 INFO L471 AbstractCegarLoop]: Abstraction has 14158 states and 16065 transitions. [2024-11-13 12:47:04,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.33333333333333) internal successors, (343), 3 states have internal predecessors, (343), 0 states have call successors, (0), 0 states 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 12:47:04,026 INFO L276 IsEmpty]: Start isEmpty. Operand 14158 states and 16065 transitions. [2024-11-13 12:47:04,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 627 [2024-11-13 12:47:04,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:04,036 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 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] [2024-11-13 12:47:04,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 12:47:04,037 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:04,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:04,039 INFO L85 PathProgramCache]: Analyzing trace with hash -1120484952, now seen corresponding path program 1 times [2024-11-13 12:47:04,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:04,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160658184] [2024-11-13 12:47:04,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:04,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:04,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:05,044 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 688 proven. 39 refuted. 0 times theorem prover too weak. 412 trivial. 0 not checked. [2024-11-13 12:47:05,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:05,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160658184] [2024-11-13 12:47:05,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1160658184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:47:05,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1891993269] [2024-11-13 12:47:05,045 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:05,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:05,046 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:05,048 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:05,050 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 12:47:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:05,290 INFO L255 TraceCheckSpWp]: Trace formula consists of 784 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:47:05,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:05,444 INFO L134 CoverageAnalysis]: Checked inductivity of 1139 backedges. 615 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-11-13 12:47:05,444 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:05,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1891993269] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:05,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:47:05,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 12:47:05,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [813241937] [2024-11-13 12:47:05,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:05,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:05,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:05,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:05,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:47:05,447 INFO L87 Difference]: Start difference. First operand 14158 states and 16065 transitions. Second operand has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states 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 12:47:07,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:07,291 INFO L93 Difference]: Finished difference Result 27712 states and 31488 transitions. [2024-11-13 12:47:07,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:07,292 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 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 626 [2024-11-13 12:47:07,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:07,325 INFO L225 Difference]: With dead ends: 27712 [2024-11-13 12:47:07,325 INFO L226 Difference]: Without dead ends: 13855 [2024-11-13 12:47:07,336 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 629 GetRequests, 625 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:47:07,337 INFO L432 NwaCegarLoop]: 567 mSDtfsCounter, 252 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 208 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 252 SdHoareTripleChecker+Valid, 604 SdHoareTripleChecker+Invalid, 1086 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 208 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:07,337 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [252 Valid, 604 Invalid, 1086 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [208 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-13 12:47:07,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13855 states. [2024-11-13 12:47:07,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13855 to 13555. [2024-11-13 12:47:07,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13555 states, 13554 states have (on average 1.0829275490630073) internal successors, (14678), 13554 states have internal predecessors, (14678), 0 states have call successors, (0), 0 states 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 12:47:07,525 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13555 states to 13555 states and 14678 transitions. [2024-11-13 12:47:07,525 INFO L78 Accepts]: Start accepts. Automaton has 13555 states and 14678 transitions. Word has length 626 [2024-11-13 12:47:07,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:07,526 INFO L471 AbstractCegarLoop]: Abstraction has 13555 states and 14678 transitions. [2024-11-13 12:47:07,527 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 114.66666666666667) internal successors, (344), 3 states have internal predecessors, (344), 0 states have call successors, (0), 0 states 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 12:47:07,527 INFO L276 IsEmpty]: Start isEmpty. Operand 13555 states and 14678 transitions. [2024-11-13 12:47:07,538 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 628 [2024-11-13 12:47:07,538 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:07,539 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 12:47:07,560 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 12:47:07,739 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:07,740 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:07,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:07,741 INFO L85 PathProgramCache]: Analyzing trace with hash -1661821016, now seen corresponding path program 1 times [2024-11-13 12:47:07,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:07,741 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [418861320] [2024-11-13 12:47:07,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:07,741 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:07,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:08,882 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 615 proven. 39 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-13 12:47:08,883 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:08,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [418861320] [2024-11-13 12:47:08,883 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [418861320] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:47:08,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422398548] [2024-11-13 12:47:08,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:08,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:08,884 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:08,886 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:08,889 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 12:47:09,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:09,165 INFO L255 TraceCheckSpWp]: Trace formula consists of 766 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 12:47:09,172 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:10,354 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 615 proven. 39 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-13 12:47:10,354 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:47:11,470 INFO L134 CoverageAnalysis]: Checked inductivity of 855 backedges. 615 proven. 39 refuted. 0 times theorem prover too weak. 201 trivial. 0 not checked. [2024-11-13 12:47:11,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422398548] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 12:47:11,471 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 12:47:11,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-13 12:47:11,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303321252] [2024-11-13 12:47:11,472 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 12:47:11,473 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 12:47:11,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:11,474 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 12:47:11,475 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-13 12:47:11,475 INFO L87 Difference]: Start difference. First operand 13555 states and 14678 transitions. Second operand has 9 states, 9 states have (on average 86.33333333333333) internal successors, (777), 8 states have internal predecessors, (777), 0 states have call successors, (0), 0 states 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 12:47:19,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:19,400 INFO L93 Difference]: Finished difference Result 35143 states and 38047 transitions. [2024-11-13 12:47:19,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 12:47:19,401 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 86.33333333333333) internal successors, (777), 8 states have internal predecessors, (777), 0 states have call successors, (0), 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 627 [2024-11-13 12:47:19,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:19,437 INFO L225 Difference]: With dead ends: 35143 [2024-11-13 12:47:19,438 INFO L226 Difference]: Without dead ends: 15948 [2024-11-13 12:47:19,452 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1263 GetRequests, 1249 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-13 12:47:19,453 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 3099 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 5500 mSolverCounterSat, 687 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3099 SdHoareTripleChecker+Valid, 234 SdHoareTripleChecker+Invalid, 6187 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 687 IncrementalHoareTripleChecker+Valid, 5500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:19,453 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3099 Valid, 234 Invalid, 6187 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [687 Valid, 5500 Invalid, 0 Unknown, 0 Unchecked, 7.5s Time] [2024-11-13 12:47:19,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15948 states. [2024-11-13 12:47:19,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15948 to 12357. [2024-11-13 12:47:19,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12357 states, 12356 states have (on average 1.0382000647458725) internal successors, (12828), 12356 states have internal predecessors, (12828), 0 states have call successors, (0), 0 states 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 12:47:19,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12357 states to 12357 states and 12828 transitions. [2024-11-13 12:47:19,630 INFO L78 Accepts]: Start accepts. Automaton has 12357 states and 12828 transitions. Word has length 627 [2024-11-13 12:47:19,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:19,630 INFO L471 AbstractCegarLoop]: Abstraction has 12357 states and 12828 transitions. [2024-11-13 12:47:19,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 86.33333333333333) internal successors, (777), 8 states have internal predecessors, (777), 0 states have call successors, (0), 0 states 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 12:47:19,631 INFO L276 IsEmpty]: Start isEmpty. Operand 12357 states and 12828 transitions. [2024-11-13 12:47:19,640 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 665 [2024-11-13 12:47:19,640 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:19,641 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:19,668 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 12:47:19,841 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:19,842 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:19,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:19,843 INFO L85 PathProgramCache]: Analyzing trace with hash -1421066796, now seen corresponding path program 1 times [2024-11-13 12:47:19,843 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:19,843 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955041388] [2024-11-13 12:47:19,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:19,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:20,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 266 proven. 352 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 12:47:21,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:21,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955041388] [2024-11-13 12:47:21,577 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955041388] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:47:21,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [388792926] [2024-11-13 12:47:21,577 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:21,577 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:21,578 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:21,580 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:21,582 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 12:47:21,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:21,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 780 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 12:47:21,895 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:25,458 INFO L134 CoverageAnalysis]: Checked inductivity of 618 backedges. 512 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-13 12:47:25,458 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:25,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [388792926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:25,458 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:47:25,458 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-13 12:47:25,459 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1747756156] [2024-11-13 12:47:25,459 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:25,459 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:25,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:25,460 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:25,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:47:25,461 INFO L87 Difference]: Start difference. First operand 12357 states and 12828 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 12:47:27,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:27,106 INFO L93 Difference]: Finished difference Result 29800 states and 30975 transitions. [2024-11-13 12:47:27,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:27,106 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 664 [2024-11-13 12:47:27,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:27,147 INFO L225 Difference]: With dead ends: 29800 [2024-11-13 12:47:27,147 INFO L226 Difference]: Without dead ends: 17445 [2024-11-13 12:47:27,156 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 668 GetRequests, 663 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:47:27,157 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 130 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 813 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 813 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:27,158 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 177 Invalid, 907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 813 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 12:47:27,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17445 states. [2024-11-13 12:47:27,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17445 to 16545. [2024-11-13 12:47:27,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16545 states, 16544 states have (on average 1.0359042553191489) internal successors, (17138), 16544 states have internal predecessors, (17138), 0 states have call successors, (0), 0 states 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 12:47:27,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16545 states to 16545 states and 17138 transitions. [2024-11-13 12:47:27,365 INFO L78 Accepts]: Start accepts. Automaton has 16545 states and 17138 transitions. Word has length 664 [2024-11-13 12:47:27,365 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:27,365 INFO L471 AbstractCegarLoop]: Abstraction has 16545 states and 17138 transitions. [2024-11-13 12:47:27,366 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 12:47:27,366 INFO L276 IsEmpty]: Start isEmpty. Operand 16545 states and 17138 transitions. [2024-11-13 12:47:27,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-13 12:47:27,375 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:27,376 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:27,400 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 12:47:27,576 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:27,577 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:27,578 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:27,578 INFO L85 PathProgramCache]: Analyzing trace with hash -1088627724, now seen corresponding path program 1 times [2024-11-13 12:47:27,582 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:27,582 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [45021136] [2024-11-13 12:47:27,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:27,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:27,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:28,567 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 182 proven. 0 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2024-11-13 12:47:28,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:28,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [45021136] [2024-11-13 12:47:28,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [45021136] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:28,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:28,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:47:28,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452774034] [2024-11-13 12:47:28,568 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:28,569 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:28,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:28,570 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:28,570 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:28,571 INFO L87 Difference]: Start difference. First operand 16545 states and 17138 transitions. Second operand has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states 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 12:47:30,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:30,825 INFO L93 Difference]: Finished difference Result 39674 states and 41121 transitions. [2024-11-13 12:47:30,826 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:47:30,826 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 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 688 [2024-11-13 12:47:30,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:30,864 INFO L225 Difference]: With dead ends: 39674 [2024-11-13 12:47:30,864 INFO L226 Difference]: Without dead ends: 23131 [2024-11-13 12:47:30,875 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:30,875 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 583 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 1253 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 583 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 1380 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:30,876 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [583 Valid, 181 Invalid, 1380 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1253 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 12:47:30,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23131 states. [2024-11-13 12:47:31,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23131 to 17439. [2024-11-13 12:47:31,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17439 states, 17438 states have (on average 1.0334900791375157) internal successors, (18022), 17438 states have internal predecessors, (18022), 0 states have call successors, (0), 0 states 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 12:47:31,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17439 states to 17439 states and 18022 transitions. [2024-11-13 12:47:31,089 INFO L78 Accepts]: Start accepts. Automaton has 17439 states and 18022 transitions. Word has length 688 [2024-11-13 12:47:31,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:31,090 INFO L471 AbstractCegarLoop]: Abstraction has 17439 states and 18022 transitions. [2024-11-13 12:47:31,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 84.5) internal successors, (338), 4 states have internal predecessors, (338), 0 states have call successors, (0), 0 states 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 12:47:31,090 INFO L276 IsEmpty]: Start isEmpty. Operand 17439 states and 18022 transitions. [2024-11-13 12:47:31,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 720 [2024-11-13 12:47:31,097 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:31,097 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:31,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 12:47:31,098 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:31,098 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:31,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1564747517, now seen corresponding path program 1 times [2024-11-13 12:47:31,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:31,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265009530] [2024-11-13 12:47:31,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:31,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:31,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:31,622 INFO L134 CoverageAnalysis]: Checked inductivity of 960 backedges. 565 proven. 0 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2024-11-13 12:47:31,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:31,622 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265009530] [2024-11-13 12:47:31,622 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1265009530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:31,622 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:31,622 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:31,623 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161284271] [2024-11-13 12:47:31,623 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:31,623 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:31,624 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:31,624 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:31,624 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:31,625 INFO L87 Difference]: Start difference. First operand 17439 states and 18022 transitions. Second operand has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states 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 12:47:32,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:32,685 INFO L93 Difference]: Finished difference Result 34574 states and 35744 transitions. [2024-11-13 12:47:32,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:32,685 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 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 719 [2024-11-13 12:47:32,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:32,702 INFO L225 Difference]: With dead ends: 34574 [2024-11-13 12:47:32,702 INFO L226 Difference]: Without dead ends: 17436 [2024-11-13 12:47:32,713 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 12:47:32,714 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 436 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 436 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:32,714 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [436 Valid, 68 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 12:47:32,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17436 states. [2024-11-13 12:47:32,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17436 to 17136. [2024-11-13 12:47:32,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17136 states, 17135 states have (on average 1.0334403268164576) internal successors, (17708), 17135 states have internal predecessors, (17708), 0 states have call successors, (0), 0 states 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 12:47:32,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17136 states to 17136 states and 17708 transitions. [2024-11-13 12:47:32,930 INFO L78 Accepts]: Start accepts. Automaton has 17136 states and 17708 transitions. Word has length 719 [2024-11-13 12:47:32,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:32,931 INFO L471 AbstractCegarLoop]: Abstraction has 17136 states and 17708 transitions. [2024-11-13 12:47:32,931 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 144.33333333333334) internal successors, (433), 3 states have internal predecessors, (433), 0 states have call successors, (0), 0 states 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 12:47:32,931 INFO L276 IsEmpty]: Start isEmpty. Operand 17136 states and 17708 transitions. [2024-11-13 12:47:32,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 754 [2024-11-13 12:47:32,944 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:32,944 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 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 12:47:32,945 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 12:47:32,945 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:32,945 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:32,945 INFO L85 PathProgramCache]: Analyzing trace with hash 1057299652, now seen corresponding path program 1 times [2024-11-13 12:47:32,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:32,946 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [518903087] [2024-11-13 12:47:32,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:32,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:33,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:33,451 INFO L134 CoverageAnalysis]: Checked inductivity of 1279 backedges. 619 proven. 0 refuted. 0 times theorem prover too weak. 660 trivial. 0 not checked. [2024-11-13 12:47:33,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:33,451 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [518903087] [2024-11-13 12:47:33,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [518903087] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:33,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:33,452 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:33,452 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680072171] [2024-11-13 12:47:33,452 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:33,453 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:33,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:33,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:33,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:33,454 INFO L87 Difference]: Start difference. First operand 17136 states and 17708 transitions. Second operand has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states 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 12:47:34,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:34,721 INFO L93 Difference]: Finished difference Result 36056 states and 37327 transitions. [2024-11-13 12:47:34,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:34,721 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 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 753 [2024-11-13 12:47:34,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:34,735 INFO L225 Difference]: With dead ends: 36056 [2024-11-13 12:47:34,735 INFO L226 Difference]: Without dead ends: 19221 [2024-11-13 12:47:34,746 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 12:47:34,746 INFO L432 NwaCegarLoop]: 430 mSDtfsCounter, 264 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 456 SdHoareTripleChecker+Invalid, 848 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:34,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 456 Invalid, 848 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 12:47:34,762 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19221 states. [2024-11-13 12:47:35,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19221 to 18324. [2024-11-13 12:47:35,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18324 states, 18323 states have (on average 1.0303989521366588) internal successors, (18880), 18323 states have internal predecessors, (18880), 0 states have call successors, (0), 0 states 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 12:47:35,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18324 states to 18324 states and 18880 transitions. [2024-11-13 12:47:35,037 INFO L78 Accepts]: Start accepts. Automaton has 18324 states and 18880 transitions. Word has length 753 [2024-11-13 12:47:35,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:35,037 INFO L471 AbstractCegarLoop]: Abstraction has 18324 states and 18880 transitions. [2024-11-13 12:47:35,037 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 139.33333333333334) internal successors, (418), 3 states have internal predecessors, (418), 0 states have call successors, (0), 0 states 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 12:47:35,038 INFO L276 IsEmpty]: Start isEmpty. Operand 18324 states and 18880 transitions. [2024-11-13 12:47:35,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 829 [2024-11-13 12:47:35,050 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:35,050 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 12:47:35,050 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 12:47:35,050 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:35,051 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:35,051 INFO L85 PathProgramCache]: Analyzing trace with hash 24180781, now seen corresponding path program 1 times [2024-11-13 12:47:35,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:35,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058539992] [2024-11-13 12:47:35,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:35,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:35,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:37,109 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 692 proven. 188 refuted. 0 times theorem prover too weak. 202 trivial. 0 not checked. [2024-11-13 12:47:37,110 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:37,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058539992] [2024-11-13 12:47:37,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058539992] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:47:37,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1979914540] [2024-11-13 12:47:37,111 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:37,111 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:37,111 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:37,114 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:37,116 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 12:47:37,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:37,550 INFO L255 TraceCheckSpWp]: Trace formula consists of 963 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:47:37,559 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:38,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1082 backedges. 735 proven. 0 refuted. 0 times theorem prover too weak. 347 trivial. 0 not checked. [2024-11-13 12:47:38,158 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:38,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1979914540] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:38,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:47:38,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-13 12:47:38,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255096987] [2024-11-13 12:47:38,159 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:38,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:38,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:38,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:38,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:47:38,161 INFO L87 Difference]: Start difference. First operand 18324 states and 18880 transitions. Second operand has 4 states, 4 states have (on average 140.5) internal successors, (562), 4 states have internal predecessors, (562), 0 states have call successors, (0), 0 states 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 12:47:40,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:40,110 INFO L93 Difference]: Finished difference Result 35737 states and 36717 transitions. [2024-11-13 12:47:40,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:47:40,110 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 140.5) internal successors, (562), 4 states have internal predecessors, (562), 0 states have call successors, (0), 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 828 [2024-11-13 12:47:40,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:40,128 INFO L225 Difference]: With dead ends: 35737 [2024-11-13 12:47:40,128 INFO L226 Difference]: Without dead ends: 17415 [2024-11-13 12:47:40,137 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 831 GetRequests, 826 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:47:40,138 INFO L432 NwaCegarLoop]: 407 mSDtfsCounter, 351 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 1825 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 351 SdHoareTripleChecker+Valid, 452 SdHoareTripleChecker+Invalid, 1907 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 1825 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:40,138 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [351 Valid, 452 Invalid, 1907 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 1825 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 12:47:40,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17415 states. [2024-11-13 12:47:40,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17415 to 12904. [2024-11-13 12:47:40,260 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12904 states, 12903 states have (on average 1.0233279082383941) internal successors, (13204), 12903 states have internal predecessors, (13204), 0 states have call successors, (0), 0 states 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 12:47:40,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12904 states to 12904 states and 13204 transitions. [2024-11-13 12:47:40,278 INFO L78 Accepts]: Start accepts. Automaton has 12904 states and 13204 transitions. Word has length 828 [2024-11-13 12:47:40,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:40,279 INFO L471 AbstractCegarLoop]: Abstraction has 12904 states and 13204 transitions. [2024-11-13 12:47:40,279 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.5) internal successors, (562), 4 states have internal predecessors, (562), 0 states have call successors, (0), 0 states 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 12:47:40,279 INFO L276 IsEmpty]: Start isEmpty. Operand 12904 states and 13204 transitions. [2024-11-13 12:47:40,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 837 [2024-11-13 12:47:40,289 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:40,289 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 12:47:40,305 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 12:47:40,489 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:40,490 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:40,490 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:40,490 INFO L85 PathProgramCache]: Analyzing trace with hash 450402369, now seen corresponding path program 1 times [2024-11-13 12:47:40,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:40,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638413555] [2024-11-13 12:47:40,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:40,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:40,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:41,185 INFO L134 CoverageAnalysis]: Checked inductivity of 1347 backedges. 799 proven. 0 refuted. 0 times theorem prover too weak. 548 trivial. 0 not checked. [2024-11-13 12:47:41,185 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:41,185 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638413555] [2024-11-13 12:47:41,185 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638413555] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:41,185 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:41,185 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:41,185 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1129101187] [2024-11-13 12:47:41,185 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:41,186 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:41,186 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:41,187 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:41,187 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:41,187 INFO L87 Difference]: Start difference. First operand 12904 states and 13204 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 12:47:42,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:42,244 INFO L93 Difference]: Finished difference Result 27906 states and 28587 transitions. [2024-11-13 12:47:42,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:42,245 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 836 [2024-11-13 12:47:42,246 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:42,256 INFO L225 Difference]: With dead ends: 27906 [2024-11-13 12:47:42,256 INFO L226 Difference]: Without dead ends: 15303 [2024-11-13 12:47:42,260 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:42,260 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 320 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 724 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 320 SdHoareTripleChecker+Valid, 84 SdHoareTripleChecker+Invalid, 798 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 724 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:42,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [320 Valid, 84 Invalid, 798 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 724 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:47:42,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15303 states. [2024-11-13 12:47:42,368 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15303 to 12003. [2024-11-13 12:47:42,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12003 states, 12002 states have (on average 1.022996167305449) internal successors, (12278), 12002 states have internal predecessors, (12278), 0 states have call successors, (0), 0 states 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 12:47:42,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12003 states to 12003 states and 12278 transitions. [2024-11-13 12:47:42,386 INFO L78 Accepts]: Start accepts. Automaton has 12003 states and 12278 transitions. Word has length 836 [2024-11-13 12:47:42,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:42,386 INFO L471 AbstractCegarLoop]: Abstraction has 12003 states and 12278 transitions. [2024-11-13 12:47:42,387 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 12:47:42,387 INFO L276 IsEmpty]: Start isEmpty. Operand 12003 states and 12278 transitions. [2024-11-13 12:47:42,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2024-11-13 12:47:42,396 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:42,397 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:42,397 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 12:47:42,397 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:42,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:42,398 INFO L85 PathProgramCache]: Analyzing trace with hash 1595250004, now seen corresponding path program 1 times [2024-11-13 12:47:42,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:42,398 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [408810901] [2024-11-13 12:47:42,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:42,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:42,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 1392 backedges. 954 proven. 0 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2024-11-13 12:47:43,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:43,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [408810901] [2024-11-13 12:47:43,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [408810901] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:43,153 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:43,153 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:43,153 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327678694] [2024-11-13 12:47:43,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:43,154 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:43,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:43,155 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:43,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:43,155 INFO L87 Difference]: Start difference. First operand 12003 states and 12278 transitions. Second operand has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 12:47:44,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:44,172 INFO L93 Difference]: Finished difference Result 27607 states and 28280 transitions. [2024-11-13 12:47:44,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:44,173 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 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 849 [2024-11-13 12:47:44,174 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:44,185 INFO L225 Difference]: With dead ends: 27607 [2024-11-13 12:47:44,185 INFO L226 Difference]: Without dead ends: 15905 [2024-11-13 12:47:44,190 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 12:47:44,191 INFO L432 NwaCegarLoop]: 401 mSDtfsCounter, 175 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 699 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 175 SdHoareTripleChecker+Valid, 424 SdHoareTripleChecker+Invalid, 743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 699 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:44,191 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [175 Valid, 424 Invalid, 743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 699 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:47:44,201 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15905 states. [2024-11-13 12:47:44,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15905 to 14407. [2024-11-13 12:47:44,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14407 states, 14406 states have (on average 1.021727058170207) internal successors, (14719), 14406 states have internal predecessors, (14719), 0 states have call successors, (0), 0 states 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 12:47:44,336 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14407 states to 14407 states and 14719 transitions. [2024-11-13 12:47:44,337 INFO L78 Accepts]: Start accepts. Automaton has 14407 states and 14719 transitions. Word has length 849 [2024-11-13 12:47:44,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:44,338 INFO L471 AbstractCegarLoop]: Abstraction has 14407 states and 14719 transitions. [2024-11-13 12:47:44,338 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 169.33333333333334) internal successors, (508), 3 states have internal predecessors, (508), 0 states have call successors, (0), 0 states 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 12:47:44,338 INFO L276 IsEmpty]: Start isEmpty. Operand 14407 states and 14719 transitions. [2024-11-13 12:47:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 870 [2024-11-13 12:47:44,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:44,349 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:44,349 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-13 12:47:44,350 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:44,350 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:44,350 INFO L85 PathProgramCache]: Analyzing trace with hash 1724223389, now seen corresponding path program 1 times [2024-11-13 12:47:44,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:44,350 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400667465] [2024-11-13 12:47:44,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:44,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:44,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:46,208 INFO L134 CoverageAnalysis]: Checked inductivity of 1138 backedges. 641 proven. 269 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-13 12:47:46,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:46,208 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400667465] [2024-11-13 12:47:46,209 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400667465] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:47:46,209 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233534132] [2024-11-13 12:47:46,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:46,209 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:46,209 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:46,211 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:46,212 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-13 12:47:46,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:46,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 1003 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:47:46,571 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:47,017 INFO L134 CoverageAnalysis]: Checked inductivity of 1138 backedges. 658 proven. 0 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-13 12:47:47,017 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:47:47,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233534132] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:47,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:47:47,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-13 12:47:47,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431586188] [2024-11-13 12:47:47,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:47,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:47,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:47,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:47,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:47:47,020 INFO L87 Difference]: Start difference. First operand 14407 states and 14719 transitions. Second operand has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states 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 12:47:48,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:48,703 INFO L93 Difference]: Finished difference Result 20703 states and 21118 transitions. [2024-11-13 12:47:48,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:47:48,704 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 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 869 [2024-11-13 12:47:48,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:48,718 INFO L225 Difference]: With dead ends: 20703 [2024-11-13 12:47:48,718 INFO L226 Difference]: Without dead ends: 20701 [2024-11-13 12:47:48,723 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 872 GetRequests, 867 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:47:48,724 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 450 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 1397 mSolverCounterSat, 81 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 450 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 1478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 81 IncrementalHoareTripleChecker+Valid, 1397 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:48,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [450 Valid, 75 Invalid, 1478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [81 Valid, 1397 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 12:47:48,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20701 states. [2024-11-13 12:47:48,866 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20701 to 14108. [2024-11-13 12:47:48,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14108 states, 14107 states have (on average 1.0217622456936273) internal successors, (14414), 14107 states have internal predecessors, (14414), 0 states have call successors, (0), 0 states 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 12:47:48,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14108 states to 14108 states and 14414 transitions. [2024-11-13 12:47:48,889 INFO L78 Accepts]: Start accepts. Automaton has 14108 states and 14414 transitions. Word has length 869 [2024-11-13 12:47:48,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:48,890 INFO L471 AbstractCegarLoop]: Abstraction has 14108 states and 14414 transitions. [2024-11-13 12:47:48,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 124.0) internal successors, (496), 4 states have internal predecessors, (496), 0 states have call successors, (0), 0 states 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 12:47:48,890 INFO L276 IsEmpty]: Start isEmpty. Operand 14108 states and 14414 transitions. [2024-11-13 12:47:48,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 882 [2024-11-13 12:47:48,899 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:48,899 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:47:48,914 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-13 12:47:49,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:49,100 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:49,100 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:49,101 INFO L85 PathProgramCache]: Analyzing trace with hash 1231236202, now seen corresponding path program 1 times [2024-11-13 12:47:49,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:49,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [538684433] [2024-11-13 12:47:49,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:49,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:49,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:49,521 INFO L134 CoverageAnalysis]: Checked inductivity of 1188 backedges. 664 proven. 0 refuted. 0 times theorem prover too weak. 524 trivial. 0 not checked. [2024-11-13 12:47:49,521 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:49,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [538684433] [2024-11-13 12:47:49,522 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [538684433] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:49,522 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:49,522 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:47:49,522 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950429534] [2024-11-13 12:47:49,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:49,523 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:49,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:49,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:49,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:47:49,524 INFO L87 Difference]: Start difference. First operand 14108 states and 14414 transitions. Second operand has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 12:47:50,601 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:50,601 INFO L93 Difference]: Finished difference Result 29708 states and 30352 transitions. [2024-11-13 12:47:50,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:50,602 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 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 881 [2024-11-13 12:47:50,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:50,616 INFO L225 Difference]: With dead ends: 29708 [2024-11-13 12:47:50,616 INFO L226 Difference]: Without dead ends: 15602 [2024-11-13 12:47:50,623 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 12:47:50,624 INFO L432 NwaCegarLoop]: 394 mSDtfsCounter, 308 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 683 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 308 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 683 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:50,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [308 Valid, 417 Invalid, 714 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 683 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 12:47:50,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15602 states. [2024-11-13 12:47:50,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15602 to 13208. [2024-11-13 12:47:50,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13208 states, 13207 states have (on average 1.0202922692511547) internal successors, (13475), 13207 states have internal predecessors, (13475), 0 states have call successors, (0), 0 states 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 12:47:50,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13208 states to 13208 states and 13475 transitions. [2024-11-13 12:47:50,788 INFO L78 Accepts]: Start accepts. Automaton has 13208 states and 13475 transitions. Word has length 881 [2024-11-13 12:47:50,789 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:50,789 INFO L471 AbstractCegarLoop]: Abstraction has 13208 states and 13475 transitions. [2024-11-13 12:47:50,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 155.33333333333334) internal successors, (466), 3 states have internal predecessors, (466), 0 states have call successors, (0), 0 states 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 12:47:50,789 INFO L276 IsEmpty]: Start isEmpty. Operand 13208 states and 13475 transitions. [2024-11-13 12:47:50,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 903 [2024-11-13 12:47:50,804 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:50,805 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2024-11-13 12:47:50,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 12:47:50,806 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:50,806 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:50,806 INFO L85 PathProgramCache]: Analyzing trace with hash 1830938574, now seen corresponding path program 1 times [2024-11-13 12:47:50,806 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:50,806 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [653941831] [2024-11-13 12:47:50,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:50,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:50,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:52,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1210 backedges. 479 proven. 0 refuted. 0 times theorem prover too weak. 731 trivial. 0 not checked. [2024-11-13 12:47:52,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:52,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [653941831] [2024-11-13 12:47:52,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [653941831] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:47:52,050 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:47:52,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:47:52,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403169297] [2024-11-13 12:47:52,050 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:52,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:47:52,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:52,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:47:52,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:52,052 INFO L87 Difference]: Start difference. First operand 13208 states and 13475 transitions. Second operand has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states 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 12:47:53,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:53,822 INFO L93 Difference]: Finished difference Result 30612 states and 31221 transitions. [2024-11-13 12:47:53,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:47:53,823 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 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 902 [2024-11-13 12:47:53,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:53,842 INFO L225 Difference]: With dead ends: 30612 [2024-11-13 12:47:53,842 INFO L226 Difference]: Without dead ends: 17406 [2024-11-13 12:47:53,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:47:53,850 INFO L432 NwaCegarLoop]: 360 mSDtfsCounter, 490 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1760 mSolverCounterSat, 74 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 399 SdHoareTripleChecker+Invalid, 1834 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 74 IncrementalHoareTripleChecker+Valid, 1760 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:53,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 399 Invalid, 1834 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [74 Valid, 1760 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 12:47:53,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17406 states. [2024-11-13 12:47:53,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17406 to 13207. [2024-11-13 12:47:53,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13207 states, 13206 states have (on average 1.0201423595335453) internal successors, (13472), 13206 states have internal predecessors, (13472), 0 states have call successors, (0), 0 states 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 12:47:53,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13207 states to 13207 states and 13472 transitions. [2024-11-13 12:47:53,988 INFO L78 Accepts]: Start accepts. Automaton has 13207 states and 13472 transitions. Word has length 902 [2024-11-13 12:47:53,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:53,988 INFO L471 AbstractCegarLoop]: Abstraction has 13207 states and 13472 transitions. [2024-11-13 12:47:53,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 103.75) internal successors, (415), 4 states have internal predecessors, (415), 0 states have call successors, (0), 0 states 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 12:47:53,989 INFO L276 IsEmpty]: Start isEmpty. Operand 13207 states and 13472 transitions. [2024-11-13 12:47:53,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 907 [2024-11-13 12:47:53,997 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:53,998 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:53,998 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-13 12:47:53,998 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:53,998 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:53,999 INFO L85 PathProgramCache]: Analyzing trace with hash 1972009120, now seen corresponding path program 1 times [2024-11-13 12:47:53,999 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:53,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239885648] [2024-11-13 12:47:53,999 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:53,999 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:54,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:55,605 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 1003 proven. 183 refuted. 0 times theorem prover too weak. 272 trivial. 0 not checked. [2024-11-13 12:47:55,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:47:55,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239885648] [2024-11-13 12:47:55,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239885648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:47:55,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1816457525] [2024-11-13 12:47:55,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:55,605 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:55,605 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:47:55,607 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:47:55,608 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-13 12:47:55,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:47:55,937 INFO L255 TraceCheckSpWp]: Trace formula consists of 1059 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-13 12:47:55,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:47:56,432 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 1133 proven. 76 refuted. 0 times theorem prover too weak. 249 trivial. 0 not checked. [2024-11-13 12:47:56,433 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 12:47:57,410 INFO L134 CoverageAnalysis]: Checked inductivity of 1458 backedges. 1058 proven. 0 refuted. 0 times theorem prover too weak. 400 trivial. 0 not checked. [2024-11-13 12:47:57,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1816457525] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-13 12:47:57,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-13 12:47:57,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5, 4] total 8 [2024-11-13 12:47:57,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429931254] [2024-11-13 12:47:57,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:47:57,412 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:47:57,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:47:57,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:47:57,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:47:57,414 INFO L87 Difference]: Start difference. First operand 13207 states and 13472 transitions. Second operand has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states 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 12:47:58,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:47:58,609 INFO L93 Difference]: Finished difference Result 26713 states and 27250 transitions. [2024-11-13 12:47:58,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:47:58,610 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 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 906 [2024-11-13 12:47:58,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:47:58,619 INFO L225 Difference]: With dead ends: 26713 [2024-11-13 12:47:58,620 INFO L226 Difference]: Without dead ends: 13807 [2024-11-13 12:47:58,625 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1817 GetRequests, 1811 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 12:47:58,626 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 243 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 690 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 243 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 690 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 12:47:58,626 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [243 Valid, 41 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 690 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 12:47:58,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13807 states. [2024-11-13 12:47:58,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13807 to 13504. [2024-11-13 12:47:58,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13504 states, 13503 states have (on average 1.0185144042064727) internal successors, (13753), 13503 states have internal predecessors, (13753), 0 states have call successors, (0), 0 states 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 12:47:58,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13504 states to 13504 states and 13753 transitions. [2024-11-13 12:47:58,765 INFO L78 Accepts]: Start accepts. Automaton has 13504 states and 13753 transitions. Word has length 906 [2024-11-13 12:47:58,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:47:58,766 INFO L471 AbstractCegarLoop]: Abstraction has 13504 states and 13753 transitions. [2024-11-13 12:47:58,766 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 194.66666666666666) internal successors, (584), 3 states have internal predecessors, (584), 0 states have call successors, (0), 0 states 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 12:47:58,766 INFO L276 IsEmpty]: Start isEmpty. Operand 13504 states and 13753 transitions. [2024-11-13 12:47:58,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 916 [2024-11-13 12:47:58,780 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:47:58,782 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:47:58,807 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-13 12:47:58,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:47:58,983 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:47:58,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:47:58,983 INFO L85 PathProgramCache]: Analyzing trace with hash -1271194067, now seen corresponding path program 1 times [2024-11-13 12:47:58,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:47:58,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132368865] [2024-11-13 12:47:58,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:47:58,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:47:59,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:00,413 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 861 proven. 188 refuted. 0 times theorem prover too weak. 428 trivial. 0 not checked. [2024-11-13 12:48:00,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:48:00,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132368865] [2024-11-13 12:48:00,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132368865] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:48:00,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15242694] [2024-11-13 12:48:00,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:48:00,414 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:48:00,414 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:48:00,415 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:48:00,417 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-13 12:48:00,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:48:00,733 INFO L255 TraceCheckSpWp]: Trace formula consists of 1068 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:48:00,740 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:49:14,124 INFO L134 CoverageAnalysis]: Checked inductivity of 1477 backedges. 881 proven. 0 refuted. 0 times theorem prover too weak. 596 trivial. 0 not checked. [2024-11-13 12:49:14,124 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:49:14,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15242694] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:14,124 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:49:14,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-13 12:49:14,125 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686339273] [2024-11-13 12:49:14,125 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:14,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:49:14,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:14,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:49:14,127 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:49:14,127 INFO L87 Difference]: Start difference. First operand 13504 states and 13753 transitions. Second operand has 4 states, 4 states have (on average 141.25) internal successors, (565), 4 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 12:49:28,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:28,710 INFO L93 Difference]: Finished difference Result 33306 states and 33900 transitions. [2024-11-13 12:49:28,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:49:28,711 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 141.25) internal successors, (565), 4 states have internal predecessors, (565), 0 states have call successors, (0), 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 915 [2024-11-13 12:49:28,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:28,783 INFO L225 Difference]: With dead ends: 33306 [2024-11-13 12:49:28,784 INFO L226 Difference]: Without dead ends: 18603 [2024-11-13 12:49:28,787 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 918 GetRequests, 913 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-13 12:49:28,787 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 354 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 1430 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 354 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 1523 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 1430 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.4s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:28,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [354 Valid, 85 Invalid, 1523 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 1430 Invalid, 0 Unknown, 0 Unchecked, 14.4s Time] [2024-11-13 12:49:28,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18603 states. [2024-11-13 12:49:28,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18603 to 15900. [2024-11-13 12:49:28,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15900 states, 15899 states have (on average 1.0176740675514184) internal successors, (16180), 15899 states have internal predecessors, (16180), 0 states have call successors, (0), 0 states 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 12:49:29,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15900 states to 15900 states and 16180 transitions. [2024-11-13 12:49:29,015 INFO L78 Accepts]: Start accepts. Automaton has 15900 states and 16180 transitions. Word has length 915 [2024-11-13 12:49:29,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:29,016 INFO L471 AbstractCegarLoop]: Abstraction has 15900 states and 16180 transitions. [2024-11-13 12:49:29,016 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 141.25) internal successors, (565), 4 states have internal predecessors, (565), 0 states have call successors, (0), 0 states 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 12:49:29,016 INFO L276 IsEmpty]: Start isEmpty. Operand 15900 states and 16180 transitions. [2024-11-13 12:49:29,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2024-11-13 12:49:29,031 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:29,031 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:49:29,058 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-13 12:49:29,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-13 12:49:29,234 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:29,234 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:29,234 INFO L85 PathProgramCache]: Analyzing trace with hash -1251844742, now seen corresponding path program 1 times [2024-11-13 12:49:29,234 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:29,235 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038530857] [2024-11-13 12:49:29,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:29,235 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:29,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:30,668 INFO L134 CoverageAnalysis]: Checked inductivity of 1521 backedges. 888 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2024-11-13 12:49:30,669 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:30,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038530857] [2024-11-13 12:49:30,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038530857] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:30,669 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:30,669 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 12:49:30,669 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120689192] [2024-11-13 12:49:30,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:30,670 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:49:30,670 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:30,671 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:49:30,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:49:30,671 INFO L87 Difference]: Start difference. First operand 15900 states and 16180 transitions. Second operand has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 0 states have call successors, (0), 0 states 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 12:49:32,883 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:32,883 INFO L93 Difference]: Finished difference Result 35700 states and 36320 transitions. [2024-11-13 12:49:32,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:49:32,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 0 states have call successors, (0), 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 918 [2024-11-13 12:49:32,884 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:32,899 INFO L225 Difference]: With dead ends: 35700 [2024-11-13 12:49:32,899 INFO L226 Difference]: Without dead ends: 19802 [2024-11-13 12:49:32,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 12:49:32,906 INFO L432 NwaCegarLoop]: 33 mSDtfsCounter, 360 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 1404 mSolverCounterSat, 96 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 360 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 1500 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 96 IncrementalHoareTripleChecker+Valid, 1404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:32,907 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [360 Valid, 60 Invalid, 1500 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [96 Valid, 1404 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-13 12:49:32,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19802 states. [2024-11-13 12:49:33,057 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19802 to 14104. [2024-11-13 12:49:33,066 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14104 states, 14103 states have (on average 1.0180103524072892) internal successors, (14357), 14103 states have internal predecessors, (14357), 0 states have call successors, (0), 0 states 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 12:49:33,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14104 states to 14104 states and 14357 transitions. [2024-11-13 12:49:33,080 INFO L78 Accepts]: Start accepts. Automaton has 14104 states and 14357 transitions. Word has length 918 [2024-11-13 12:49:33,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:33,081 INFO L471 AbstractCegarLoop]: Abstraction has 14104 states and 14357 transitions. [2024-11-13 12:49:33,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 0 states have call successors, (0), 0 states 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 12:49:33,081 INFO L276 IsEmpty]: Start isEmpty. Operand 14104 states and 14357 transitions. [2024-11-13 12:49:33,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 924 [2024-11-13 12:49:33,091 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:33,091 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 12:49:33,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2024-11-13 12:49:33,091 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:33,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:33,092 INFO L85 PathProgramCache]: Analyzing trace with hash -1944273343, now seen corresponding path program 1 times [2024-11-13 12:49:33,092 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:33,092 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882850692] [2024-11-13 12:49:33,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:33,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:33,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:35,319 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 1014 proven. 501 refuted. 0 times theorem prover too weak. 306 trivial. 0 not checked. [2024-11-13 12:49:35,319 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:35,319 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882850692] [2024-11-13 12:49:35,319 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882850692] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 12:49:35,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748458800] [2024-11-13 12:49:35,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:35,320 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 12:49:35,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:49:35,322 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 12:49:35,325 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-13 12:49:35,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:35,789 INFO L255 TraceCheckSpWp]: Trace formula consists of 1105 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 12:49:35,798 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 12:49:36,848 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 759 proven. 0 refuted. 0 times theorem prover too weak. 1062 trivial. 0 not checked. [2024-11-13 12:49:36,848 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 12:49:36,848 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748458800] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:36,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 12:49:36,849 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2024-11-13 12:49:36,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [727889584] [2024-11-13 12:49:36,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:36,849 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 12:49:36,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:36,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 12:49:36,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:49:36,851 INFO L87 Difference]: Start difference. First operand 14104 states and 14357 transitions. Second operand has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 12:49:39,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:39,178 INFO L93 Difference]: Finished difference Result 30009 states and 30542 transitions. [2024-11-13 12:49:39,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 12:49:39,178 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 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 923 [2024-11-13 12:49:39,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:39,191 INFO L225 Difference]: With dead ends: 30009 [2024-11-13 12:49:39,191 INFO L226 Difference]: Without dead ends: 15907 [2024-11-13 12:49:39,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 927 GetRequests, 923 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 12:49:39,198 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 490 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 1375 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 76 SdHoareTripleChecker+Invalid, 1455 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 1375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:39,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 76 Invalid, 1455 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 1375 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 12:49:39,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15907 states. [2024-11-13 12:49:39,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15907 to 12603. [2024-11-13 12:49:39,335 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12603 states, 12602 states have (on average 1.0182510712585304) internal successors, (12832), 12602 states have internal predecessors, (12832), 0 states have call successors, (0), 0 states 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 12:49:39,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12603 states to 12603 states and 12832 transitions. [2024-11-13 12:49:39,348 INFO L78 Accepts]: Start accepts. Automaton has 12603 states and 12832 transitions. Word has length 923 [2024-11-13 12:49:39,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:39,348 INFO L471 AbstractCegarLoop]: Abstraction has 12603 states and 12832 transitions. [2024-11-13 12:49:39,348 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 105.75) internal successors, (423), 4 states have internal predecessors, (423), 0 states have call successors, (0), 0 states 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 12:49:39,349 INFO L276 IsEmpty]: Start isEmpty. Operand 12603 states and 12832 transitions. [2024-11-13 12:49:39,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1545 [2024-11-13 12:49:39,367 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 12:49:39,367 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:49:39,386 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-13 12:49:39,568 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-13 12:49:39,568 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 12:49:39,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 12:49:39,569 INFO L85 PathProgramCache]: Analyzing trace with hash -349237946, now seen corresponding path program 1 times [2024-11-13 12:49:39,569 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 12:49:39,569 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [9683893] [2024-11-13 12:49:39,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 12:49:39,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 12:49:39,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 12:49:40,646 INFO L134 CoverageAnalysis]: Checked inductivity of 3774 backedges. 2368 proven. 0 refuted. 0 times theorem prover too weak. 1406 trivial. 0 not checked. [2024-11-13 12:49:40,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 12:49:40,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [9683893] [2024-11-13 12:49:40,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [9683893] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 12:49:40,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 12:49:40,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 12:49:40,647 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862245932] [2024-11-13 12:49:40,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 12:49:40,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 12:49:40,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 12:49:40,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 12:49:40,656 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 12:49:40,657 INFO L87 Difference]: Start difference. First operand 12603 states and 12832 transitions. Second operand has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states 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 12:49:41,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 12:49:41,669 INFO L93 Difference]: Finished difference Result 24002 states and 24439 transitions. [2024-11-13 12:49:41,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 12:49:41,669 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 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 1544 [2024-11-13 12:49:41,670 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 12:49:41,671 INFO L225 Difference]: With dead ends: 24002 [2024-11-13 12:49:41,671 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 12:49:41,677 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 12:49:41,678 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 33 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 657 mSolverCounterSat, 39 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 696 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 39 IncrementalHoareTripleChecker+Valid, 657 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 12:49:41,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 384 Invalid, 696 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [39 Valid, 657 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 12:49:41,678 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 12:49:41,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 12:49:41,679 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 12:49:41,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 12:49:41,679 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1544 [2024-11-13 12:49:41,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 12:49:41,680 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 12:49:41,680 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 264.3333333333333) internal successors, (793), 3 states have internal predecessors, (793), 0 states have call successors, (0), 0 states 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 12:49:41,680 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 12:49:41,681 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 12:49:41,683 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 12:49:41,684 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-13 12:49:41,688 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 12:49:41,690 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 12:49:47,903 WARN L286 SmtUtils]: Spent 6.21s on a formula simplification. DAG size of input: 653 DAG size of output: 785 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-11-13 12:50:00,378 WARN L286 SmtUtils]: Spent 12.47s on a formula simplification. DAG size of input: 785 DAG size of output: 160 (called from [L 162] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.combineInter) [2024-11-13 12:50:00,389 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 12:50:00,428 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 12:50:00,433 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 12:50:00,435 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 12:50:00,439 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 12:50:00,440 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 12:50:00,442 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 12:50:00,444 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 12:50:00,463 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 12:50:00 BoogieIcfgContainer [2024-11-13 12:50:00,468 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 12:50:00,469 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 12:50:00,469 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 12:50:00,469 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 12:50:00,470 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 12:46:30" (3/4) ... [2024-11-13 12:50:00,474 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 12:50:00,521 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 12:50:00,524 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 12:50:00,526 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 12:50:00,528 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 12:50:00,826 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 12:50:00,827 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 12:50:00,827 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 12:50:00,832 INFO L158 Benchmark]: Toolchain (without parser) took 215958.79ms. Allocated memory was 142.6MB in the beginning and 1.5GB in the end (delta: 1.3GB). Free memory was 102.2MB in the beginning and 542.6MB in the end (delta: -440.5MB). Peak memory consumption was 871.5MB. Max. memory is 16.1GB. [2024-11-13 12:50:00,836 INFO L158 Benchmark]: CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 12:50:00,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1155.15ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 90.9MB in the end (delta: 11.3MB). Peak memory consumption was 80.0MB. Max. memory is 16.1GB. [2024-11-13 12:50:00,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 238.43ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 53.5MB in the end (delta: 37.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 12:50:00,837 INFO L158 Benchmark]: Boogie Preprocessor took 441.87ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 53.5MB in the beginning and 215.3MB in the end (delta: -161.8MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. [2024-11-13 12:50:00,837 INFO L158 Benchmark]: RCFGBuilder took 3947.37ms. Allocated memory is still 318.8MB. Free memory was 215.3MB in the beginning and 196.0MB in the end (delta: 19.3MB). Peak memory consumption was 136.3MB. Max. memory is 16.1GB. [2024-11-13 12:50:00,837 INFO L158 Benchmark]: TraceAbstraction took 209806.99ms. Allocated memory was 318.8MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 196.0MB in the beginning and 567.8MB in the end (delta: -371.8MB). Peak memory consumption was 880.1MB. Max. memory is 16.1GB. [2024-11-13 12:50:00,837 INFO L158 Benchmark]: Witness Printer took 358.41ms. Allocated memory is still 1.5GB. Free memory was 567.8MB in the beginning and 542.6MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-13 12:50:00,839 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50ms. Allocated memory is still 167.8MB. Free memory is still 103.1MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1155.15ms. Allocated memory is still 142.6MB. Free memory was 102.2MB in the beginning and 90.9MB in the end (delta: 11.3MB). Peak memory consumption was 80.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 238.43ms. Allocated memory is still 142.6MB. Free memory was 90.9MB in the beginning and 53.5MB in the end (delta: 37.4MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Preprocessor took 441.87ms. Allocated memory was 142.6MB in the beginning and 318.8MB in the end (delta: 176.2MB). Free memory was 53.5MB in the beginning and 215.3MB in the end (delta: -161.8MB). Peak memory consumption was 24.6MB. Max. memory is 16.1GB. * RCFGBuilder took 3947.37ms. Allocated memory is still 318.8MB. Free memory was 215.3MB in the beginning and 196.0MB in the end (delta: 19.3MB). Peak memory consumption was 136.3MB. Max. memory is 16.1GB. * TraceAbstraction took 209806.99ms. Allocated memory was 318.8MB in the beginning and 1.5GB in the end (delta: 1.1GB). Free memory was 196.0MB in the beginning and 567.8MB in the end (delta: -371.8MB). Peak memory consumption was 880.1MB. Max. memory is 16.1GB. * Witness Printer took 358.41ms. Allocated memory is still 1.5GB. Free memory was 567.8MB in the beginning and 542.6MB in the end (delta: 25.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 206]: 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, 424 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 190.9s, OverallIterations: 27, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 70.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 10918 SdHoareTripleChecker+Valid, 66.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 10918 mSDsluCounter, 8773 SdHoareTripleChecker+Invalid, 58.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 971 mSDsCounter, 4162 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 31728 IncrementalHoareTripleChecker+Invalid, 35890 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4162 mSolverCounterUnsat, 7802 mSDtfsCounter, 31728 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 9042 GetRequests, 8966 SyntacticMatches, 0 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18324occurred in iteration=16, InterpolantAutomatonStates: 99, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.9s AutomataMinimizationTime, 27 MinimizatonAttempts, 48608 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.0s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 107.0s InterpolantComputationTime, 24973 NumberOfCodeBlocks, 24973 NumberOfCodeBlocksAsserted, 37 NumberOfCheckSat, 26467 ConstructedInterpolants, 347 QuantifiedInterpolants, 131109 SizeOfPredicates, 8 NumberOfNonLiveVariables, 8830 ConjunctsInSsa, 32 ConjunctsInUnsatCore, 39 InterpolantComputations, 26 PerfectInterpolantSequences, 36961/38952 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: 1776]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((((((((((2 == a2) && (((long long) 89 + a4) <= 0)) && (((long long) a0 + 61) <= 0)) || (((48790 <= a29) && (((long long) 89 + a4) <= 0)) && (5 <= a2))) || (((((((long long) 42 + a4) <= 0) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0))) && (a2 == 1)) && (0 <= ((long long) 600001 + a29)))) || (((((long long) 148 + a0) <= 0) && (2 == a2)) && (44 <= a29))) || (((((long long) 89 + a4) <= 0) && (a2 == 1)) && (((long long) a0 + 61) <= 0))) || (((2 == a2) && (44 <= a29)) && (((long long) a0 + 147) <= 0))) || (((((((long long) 42 + a4) <= 0) && (44 <= a29)) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0))) && (5 <= a2))) || ((((((((long long) 148 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 85))) && (a2 == 4)) && (0 <= ((long long) 600001 + a29))) && (((long long) a29 + 127) <= 0))) || (((((long long) 89 + a4) <= 0) && (a2 == 1)) && (((long long) a29 + 127) == 0))) || ((((((long long) 148 + a0) <= 0) && (0 <= ((long long) 599999 + a0))) && (((long long) 42 + a4) <= 0)) && (a2 == 1))) || ((((44 <= a29) && (((long long) 89 + a4) <= 0)) && (5 <= a2)) && (((long long) a0 + 61) <= 0))) || (((((((long long) 89 + a4) <= 0) && (0 <= ((long long) a29 + 16))) && (0 <= ((long long) a0 + 60))) && (5 <= a2)) && (a29 <= 43))) || ((((((long long) 89 + a4) <= 0) && (a2 == 4)) && (0 <= ((long long) 600001 + a29))) && (a29 <= 43))) || (((((long long) 89 + a4) <= 0) && (0 <= ((long long) 600001 + a29))) && (3 == a2))) || (((((((a2 == 1) && (((long long) a0 + 61) <= 0)) || ((0 <= ((long long) a4 + 85)) && (a2 == 1))) && (0 <= ((long long) 599999 + a0))) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a29 + 16))) && (a29 <= 43))) || ((((((long long) 148 + a0) <= 0) && (0 <= ((long long) 599999 + a0))) && (((long long) 42 + a4) <= 0)) && (a2 == 4))) || (((((((long long) 42 + a4) <= 0) && (((long long) a0 + 147) <= 0)) && (0 <= ((long long) 600001 + a29))) && (3 == a2)) && (((long long) a29 + 127) <= 0))) || ((((((long long) 42 + a4) <= 0) && (((long long) a0 + 147) <= 0)) && (3 == a2)) && (a29 <= 43))) || (((((long long) 89 + a4) <= 0) && (a2 == 4)) && (((long long) a0 + 61) <= 0))) || (((((((a2 == 1) && (((long long) a0 + 61) <= 0)) || ((0 <= ((long long) a4 + 85)) && (a2 == 1))) && (0 <= ((long long) 97 + a0))) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) 142 + a29))) && (a29 <= 43))) || (((a2 == 1) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 144) <= 0))) || ((((0 <= ((long long) 599999 + a0)) && (((long long) 42 + a4) <= 0)) && (((long long) 98 + a0) <= 0)) && (a2 == 4))) || (((((((long long) 148 + a0) <= 0) && (0 <= ((long long) 599999 + a0))) && (((long long) 42 + a4) <= 0)) && (44 <= a29)) && (5 <= a2))) || (((((0 <= ((long long) 599999 + a0)) && (((long long) 42 + a4) <= 0)) && (((long long) a0 + 147) <= 0)) && (a2 == 4)) && (0 < ((long long) a29 + 16)))) || ((((2 == a2) && (44 <= a29)) && (((long long) 98 + a0) <= 0)) && (0 <= ((long long) 146 + a0)))) || ((((((long long) 148 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (44 <= a29)) && (a2 == 1))) || (((((0 <= ((long long) 599999 + a0)) && (((long long) 42 + a4) <= 0)) && (44 <= a29)) && (((long long) a0 + 147) <= 0)) && (5 <= a2))) || ((((((0 <= ((long long) 599999 + a0)) && (((long long) 42 + a4) <= 0)) && (2 == a2)) && (0 <= ((long long) a4 + 85))) && (((long long) a0 + 147) <= 0)) && (0 <= ((long long) a29 + 16)))) || (((((long long) 89 + a4) <= 0) && (3 == a2)) && (((long long) a0 + 61) <= 0))) || ((((((((long long) 148 + a0) <= 0) && (0 <= ((long long) 599999 + a0))) && (((long long) 42 + a4) <= 0)) && (2 == a2)) && (0 <= ((long long) a4 + 85))) && (0 <= ((long long) 600001 + a29)))) || ((((((long long) 98 + a0) <= 0) && (0 <= ((long long) 146 + a0))) && ((((((long long) 42 + a4) <= 0) && (0 <= ((long long) 141 + a0))) && (3 == a2)) || (((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (44 <= a29)) && (((long long) 146 + a0) != 0)) && (3 == a2)))) && (0 <= ((long long) 600001 + a29)))) || ((((((long long) 89 + a4) <= 0) && (0 <= ((long long) 146 + a0))) && (5 <= a2)) && (((long long) a0 + 61) <= 0))) || (((2 == a2) && (((long long) 89 + a4) <= 0)) && (0 <= ((long long) 600001 + a29)))) || ((((((((long long) 42 + a4) <= 0) && (2 == a2)) && (0 <= ((long long) a4 + 85))) && (((long long) 98 + a0) <= 0)) && (((long long) 146 + a0) != 0)) && (0 <= ((long long) a29 + 13)))) || ((((((((long long) 42 + a4) <= 0) && (0 <= ((long long) a4 + 85))) && (((long long) a0 + 147) <= 0)) && (5 <= a2)) && (0 <= ((long long) 142 + a29))) && (a29 <= 43))) || ((((((long long) 89 + a4) <= 0) && (5 <= a2)) && (((long long) a29 + 127) <= 0)) && (((long long) a0 + 61) <= 0))) || ((((((long long) 148 + a0) <= 0) && (((long long) 42 + a4) <= 0)) && (0 <= ((long long) a4 + 85))) && (3 == a2))) || ((((((long long) 42 + a4) <= 0) && (((long long) 98 + a0) <= 0)) && (((((0 <= ((long long) a4 + 85)) && (0 <= ((long long) 146 + a0))) && (5 <= a2)) && (((long long) 146 + a0) != 0)) || ((5 <= a2) && (0 <= ((long long) 141 + a0))))) && (0 <= ((long long) 600001 + a29)))) RESULT: Ultimate proved your program to be correct! [2024-11-13 12:50:00,924 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_5997ae7a-122a-48ea-8f86-7ab45f4401ca/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