./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem11_label52.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_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/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_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem11_label52.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/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_8828c58a-5f47-402b-925e-fb3831aaf776/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 58258448060d1dd7e4bb5d8ae4d59fa53c9505b7e75cc42e4b9e13d20eabdbf0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 16:31:52,672 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 16:31:52,730 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 16:31:52,736 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 16:31:52,736 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 16:31:52,776 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 16:31:52,778 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 16:31:52,778 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 16:31:52,779 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 16:31:52,779 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 16:31:52,780 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 16:31:52,780 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 16:31:52,781 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 16:31:52,781 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 16:31:52,782 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 16:31:52,782 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 16:31:52,782 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 16:31:52,782 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 16:31:52,782 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 16:31:52,782 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 16:31:52,782 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 16:31:52,782 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 16:31:52,782 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 16:31:52,783 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 16:31:52,783 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 16:31:52,783 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 16:31:52,783 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 16:31:52,784 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 16:31:52,784 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 16:31:52,784 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 16:31:52,785 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 16:31:52,785 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 16:31:52,785 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:31:52,785 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 16:31:52,785 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 16:31:52,785 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 16:31:52,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 16:31:52,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 16:31:52,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 16:31:52,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 16:31:52,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 16:31:52,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 16:31:52,787 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_8828c58a-5f47-402b-925e-fb3831aaf776/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 -> 58258448060d1dd7e4bb5d8ae4d59fa53c9505b7e75cc42e4b9e13d20eabdbf0 [2024-11-13 16:31:53,060 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 16:31:53,069 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 16:31:53,071 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 16:31:53,072 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 16:31:53,072 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 16:31:53,074 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem11_label52.c Unable to find full path for "g++" [2024-11-13 16:31:54,822 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 16:31:55,221 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 16:31:55,225 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/sv-benchmarks/c/eca-rers2012/Problem11_label52.c [2024-11-13 16:31:55,244 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/data/62198289f/ffbda85ae3444dc097a073c3dce35517/FLAG4ef51f98d [2024-11-13 16:31:55,258 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/data/62198289f/ffbda85ae3444dc097a073c3dce35517 [2024-11-13 16:31:55,260 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 16:31:55,262 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 16:31:55,263 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 16:31:55,263 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 16:31:55,270 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 16:31:55,271 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:31:55" (1/1) ... [2024-11-13 16:31:55,272 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1984e148 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:55, skipping insertion in model container [2024-11-13 16:31:55,274 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 04:31:55" (1/1) ... [2024-11-13 16:31:55,337 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 16:31:55,618 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_8828c58a-5f47-402b-925e-fb3831aaf776/sv-benchmarks/c/eca-rers2012/Problem11_label52.c[7609,7622] [2024-11-13 16:31:55,947 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:31:55,957 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 16:31:56,002 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_8828c58a-5f47-402b-925e-fb3831aaf776/sv-benchmarks/c/eca-rers2012/Problem11_label52.c[7609,7622] [2024-11-13 16:31:56,156 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 16:31:56,176 INFO L204 MainTranslator]: Completed translation [2024-11-13 16:31:56,180 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56 WrapperNode [2024-11-13 16:31:56,180 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 16:31:56,181 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 16:31:56,181 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 16:31:56,181 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 16:31:56,189 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,225 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,329 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 999 [2024-11-13 16:31:56,330 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 16:31:56,330 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 16:31:56,331 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 16:31:56,331 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 16:31:56,339 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,340 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,354 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,419 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 16:31:56,419 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,419 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,453 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,462 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,490 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 16:31:56,494 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 16:31:56,495 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 16:31:56,495 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 16:31:56,496 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (1/1) ... [2024-11-13 16:31:56,503 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 16:31:56,517 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:31:56,530 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 16:31:56,537 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 16:31:56,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 16:31:56,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 16:31:56,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 16:31:56,562 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 16:31:56,647 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 16:31:56,650 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 16:31:58,726 INFO L? ?]: Removed 129 outVars from TransFormulas that were not future-live. [2024-11-13 16:31:58,726 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 16:31:58,752 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 16:31:58,752 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 16:31:58,752 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:31:58 BoogieIcfgContainer [2024-11-13 16:31:58,752 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 16:31:58,757 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 16:31:58,757 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 16:31:58,762 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 16:31:58,762 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 04:31:55" (1/3) ... [2024-11-13 16:31:58,763 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395eff50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:31:58, skipping insertion in model container [2024-11-13 16:31:58,763 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 04:31:56" (2/3) ... [2024-11-13 16:31:58,764 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@395eff50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 04:31:58, skipping insertion in model container [2024-11-13 16:31:58,764 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:31:58" (3/3) ... [2024-11-13 16:31:58,765 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem11_label52.c [2024-11-13 16:31:58,780 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 16:31:58,782 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem11_label52.c that has 1 procedures, 283 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 16:31:58,858 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 16:31:58,871 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;@65f55b60, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 16:31:58,872 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 16:31:58,877 INFO L276 IsEmpty]: Start isEmpty. Operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:31:58,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-13 16:31:58,888 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:31:58,889 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] [2024-11-13 16:31:58,890 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:31:58,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:31:58,894 INFO L85 PathProgramCache]: Analyzing trace with hash 199389826, now seen corresponding path program 1 times [2024-11-13 16:31:58,902 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:31:58,902 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768368436] [2024-11-13 16:31:58,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:31:58,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:31:59,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:31:59,468 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 16:31:59,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:31:59,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768368436] [2024-11-13 16:31:59,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768368436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:31:59,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:31:59,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:31:59,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1021467439] [2024-11-13 16:31:59,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:31:59,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:31:59,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:31:59,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:31:59,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:31:59,515 INFO L87 Difference]: Start difference. First operand has 283 states, 281 states have (on average 1.7153024911032029) internal successors, (482), 282 states have internal predecessors, (482), 0 states have call successors, (0), 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 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:01,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:01,017 INFO L93 Difference]: Finished difference Result 761 states and 1345 transitions. [2024-11-13 16:32:01,018 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:01,019 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-13 16:32:01,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:01,039 INFO L225 Difference]: With dead ends: 761 [2024-11-13 16:32:01,039 INFO L226 Difference]: Without dead ends: 413 [2024-11-13 16:32:01,044 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 16:32:01,049 INFO L432 NwaCegarLoop]: 191 mSDtfsCounter, 176 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 753 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:01,050 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 223 Invalid, 753 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-13 16:32:01,069 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-11-13 16:32:01,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 413. [2024-11-13 16:32:01,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 413 states, 412 states have (on average 1.453883495145631) internal successors, (599), 412 states have internal predecessors, (599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:01,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 413 states to 413 states and 599 transitions. [2024-11-13 16:32:01,109 INFO L78 Accepts]: Start accepts. Automaton has 413 states and 599 transitions. Word has length 52 [2024-11-13 16:32:01,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:01,109 INFO L471 AbstractCegarLoop]: Abstraction has 413 states and 599 transitions. [2024-11-13 16:32:01,110 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:01,110 INFO L276 IsEmpty]: Start isEmpty. Operand 413 states and 599 transitions. [2024-11-13 16:32:01,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-13 16:32:01,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:01,113 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, 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 16:32:01,114 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 16:32:01,114 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:01,115 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:01,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1001299398, now seen corresponding path program 1 times [2024-11-13 16:32:01,115 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:01,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366066165] [2024-11-13 16:32:01,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:01,116 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:01,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:01,498 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:01,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:01,498 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366066165] [2024-11-13 16:32:01,498 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366066165] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:01,498 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:01,498 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:32:01,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542587351] [2024-11-13 16:32:01,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:01,500 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:01,501 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:01,501 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:01,501 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:01,501 INFO L87 Difference]: Start difference. First operand 413 states and 599 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:02,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:02,485 INFO L93 Difference]: Finished difference Result 1211 states and 1763 transitions. [2024-11-13 16:32:02,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:02,485 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 120 [2024-11-13 16:32:02,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:02,489 INFO L225 Difference]: With dead ends: 1211 [2024-11-13 16:32:02,489 INFO L226 Difference]: Without dead ends: 800 [2024-11-13 16:32:02,491 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 16:32:02,491 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 142 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 523 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:02,492 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 121 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 523 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 16:32:02,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-13 16:32:02,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 789. [2024-11-13 16:32:02,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 789 states, 788 states have (on average 1.3743654822335025) internal successors, (1083), 788 states have internal predecessors, (1083), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:02,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 789 states to 789 states and 1083 transitions. [2024-11-13 16:32:02,527 INFO L78 Accepts]: Start accepts. Automaton has 789 states and 1083 transitions. Word has length 120 [2024-11-13 16:32:02,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:02,528 INFO L471 AbstractCegarLoop]: Abstraction has 789 states and 1083 transitions. [2024-11-13 16:32:02,528 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:02,528 INFO L276 IsEmpty]: Start isEmpty. Operand 789 states and 1083 transitions. [2024-11-13 16:32:02,531 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 123 [2024-11-13 16:32:02,531 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:02,532 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, 1, 1, 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 16:32:02,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 16:32:02,532 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:02,532 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:02,532 INFO L85 PathProgramCache]: Analyzing trace with hash 1326497333, now seen corresponding path program 1 times [2024-11-13 16:32:02,533 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:02,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [862485063] [2024-11-13 16:32:02,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:02,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:03,069 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:03,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:03,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [862485063] [2024-11-13 16:32:03,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [862485063] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:03,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:03,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:32:03,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380749491] [2024-11-13 16:32:03,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:03,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:03,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:03,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:03,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:03,071 INFO L87 Difference]: Start difference. First operand 789 states and 1083 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:03,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:03,969 INFO L93 Difference]: Finished difference Result 1945 states and 2612 transitions. [2024-11-13 16:32:03,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:03,970 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 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 122 [2024-11-13 16:32:03,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:03,975 INFO L225 Difference]: With dead ends: 1945 [2024-11-13 16:32:03,975 INFO L226 Difference]: Without dead ends: 1158 [2024-11-13 16:32:03,976 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 16:32:03,978 INFO L432 NwaCegarLoop]: 168 mSDtfsCounter, 119 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 531 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 568 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 531 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:03,981 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 190 Invalid, 568 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 531 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 16:32:03,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-13 16:32:04,018 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1157. [2024-11-13 16:32:04,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1157 states, 1156 states have (on average 1.2707612456747406) internal successors, (1469), 1156 states have internal predecessors, (1469), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:04,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1157 states to 1157 states and 1469 transitions. [2024-11-13 16:32:04,027 INFO L78 Accepts]: Start accepts. Automaton has 1157 states and 1469 transitions. Word has length 122 [2024-11-13 16:32:04,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:04,030 INFO L471 AbstractCegarLoop]: Abstraction has 1157 states and 1469 transitions. [2024-11-13 16:32:04,030 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 2 states have internal predecessors, (122), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:04,030 INFO L276 IsEmpty]: Start isEmpty. Operand 1157 states and 1469 transitions. [2024-11-13 16:32:04,038 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 180 [2024-11-13 16:32:04,038 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:04,039 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:04,039 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 16:32:04,041 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:04,041 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:04,042 INFO L85 PathProgramCache]: Analyzing trace with hash -1484943050, now seen corresponding path program 1 times [2024-11-13 16:32:04,042 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:04,042 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [949589872] [2024-11-13 16:32:04,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:04,042 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:04,442 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:04,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:04,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [949589872] [2024-11-13 16:32:04,445 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [949589872] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:04,445 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:04,445 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:32:04,445 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481081922] [2024-11-13 16:32:04,445 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:04,446 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:04,446 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:04,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:04,448 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:04,448 INFO L87 Difference]: Start difference. First operand 1157 states and 1469 transitions. Second operand has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:05,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:05,443 INFO L93 Difference]: Finished difference Result 2519 states and 3349 transitions. [2024-11-13 16:32:05,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:05,444 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 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 179 [2024-11-13 16:32:05,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:05,449 INFO L225 Difference]: With dead ends: 2519 [2024-11-13 16:32:05,449 INFO L226 Difference]: Without dead ends: 1548 [2024-11-13 16:32:05,450 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 16:32:05,451 INFO L432 NwaCegarLoop]: 289 mSDtfsCounter, 183 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 183 SdHoareTripleChecker+Valid, 321 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:05,452 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [183 Valid, 321 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 16:32:05,453 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1548 states. [2024-11-13 16:32:05,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1548 to 1545. [2024-11-13 16:32:05,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1545 states, 1544 states have (on average 1.2933937823834196) internal successors, (1997), 1544 states have internal predecessors, (1997), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:05,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1545 states to 1545 states and 1997 transitions. [2024-11-13 16:32:05,487 INFO L78 Accepts]: Start accepts. Automaton has 1545 states and 1997 transitions. Word has length 179 [2024-11-13 16:32:05,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:05,488 INFO L471 AbstractCegarLoop]: Abstraction has 1545 states and 1997 transitions. [2024-11-13 16:32:05,488 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 59.666666666666664) internal successors, (179), 3 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:05,488 INFO L276 IsEmpty]: Start isEmpty. Operand 1545 states and 1997 transitions. [2024-11-13 16:32:05,491 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2024-11-13 16:32:05,492 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:05,492 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, 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] [2024-11-13 16:32:05,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 16:32:05,492 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:05,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:05,493 INFO L85 PathProgramCache]: Analyzing trace with hash -1803982095, now seen corresponding path program 1 times [2024-11-13 16:32:05,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:05,493 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098329779] [2024-11-13 16:32:05,493 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:05,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:05,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:05,904 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 69 trivial. 0 not checked. [2024-11-13 16:32:05,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:05,904 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098329779] [2024-11-13 16:32:05,904 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098329779] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:05,904 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:05,904 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:32:05,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935029570] [2024-11-13 16:32:05,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:05,905 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:05,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:05,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:05,907 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:05,907 INFO L87 Difference]: Start difference. First operand 1545 states and 1997 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:06,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:06,986 INFO L93 Difference]: Finished difference Result 3650 states and 4815 transitions. [2024-11-13 16:32:06,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:06,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 234 [2024-11-13 16:32:06,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:06,995 INFO L225 Difference]: With dead ends: 3650 [2024-11-13 16:32:06,995 INFO L226 Difference]: Without dead ends: 2291 [2024-11-13 16:32:06,997 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 16:32:06,998 INFO L432 NwaCegarLoop]: 371 mSDtfsCounter, 145 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 596 mSolverCounterSat, 86 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 392 SdHoareTripleChecker+Invalid, 682 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 86 IncrementalHoareTripleChecker+Valid, 596 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:06,998 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 392 Invalid, 682 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [86 Valid, 596 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 16:32:07,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2291 states. [2024-11-13 16:32:07,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2291 to 2098. [2024-11-13 16:32:07,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2098 states, 2097 states have (on average 1.2675250357653791) internal successors, (2658), 2097 states have internal predecessors, (2658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:07,049 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2098 states to 2098 states and 2658 transitions. [2024-11-13 16:32:07,049 INFO L78 Accepts]: Start accepts. Automaton has 2098 states and 2658 transitions. Word has length 234 [2024-11-13 16:32:07,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:07,050 INFO L471 AbstractCegarLoop]: Abstraction has 2098 states and 2658 transitions. [2024-11-13 16:32:07,050 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:07,050 INFO L276 IsEmpty]: Start isEmpty. Operand 2098 states and 2658 transitions. [2024-11-13 16:32:07,054 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 241 [2024-11-13 16:32:07,054 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:07,054 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, 2, 2, 2, 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] [2024-11-13 16:32:07,055 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 16:32:07,055 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:07,055 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:07,055 INFO L85 PathProgramCache]: Analyzing trace with hash 340875746, now seen corresponding path program 1 times [2024-11-13 16:32:07,056 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:07,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1377741635] [2024-11-13 16:32:07,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:07,056 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:07,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:08,002 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 95 proven. 4 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-13 16:32:08,003 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:08,003 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1377741635] [2024-11-13 16:32:08,004 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1377741635] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:32:08,004 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1652794862] [2024-11-13 16:32:08,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:08,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:32:08,004 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:32:08,007 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:32:08,008 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 16:32:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:08,154 INFO L255 TraceCheckSpWp]: Trace formula consists of 350 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 16:32:08,161 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:32:08,290 INFO L134 CoverageAnalysis]: Checked inductivity of 174 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-13 16:32:08,290 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 16:32:08,291 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1652794862] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:08,291 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 16:32:08,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-13 16:32:08,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [364621761] [2024-11-13 16:32:08,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:08,292 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:08,292 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:08,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:08,293 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:32:08,293 INFO L87 Difference]: Start difference. First operand 2098 states and 2658 transitions. Second operand has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:09,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:09,382 INFO L93 Difference]: Finished difference Result 5851 states and 7488 transitions. [2024-11-13 16:32:09,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:09,383 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 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 240 [2024-11-13 16:32:09,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:09,397 INFO L225 Difference]: With dead ends: 5851 [2024-11-13 16:32:09,397 INFO L226 Difference]: Without dead ends: 3755 [2024-11-13 16:32:09,400 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 245 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:32:09,400 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 159 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 572 mSolverCounterSat, 101 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 673 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 101 IncrementalHoareTripleChecker+Valid, 572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:09,401 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 145 Invalid, 673 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [101 Valid, 572 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 16:32:09,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3755 states. [2024-11-13 16:32:09,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3755 to 3755. [2024-11-13 16:32:09,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3755 states, 3754 states have (on average 1.245338305807139) internal successors, (4675), 3754 states have internal predecessors, (4675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:09,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3755 states to 3755 states and 4675 transitions. [2024-11-13 16:32:09,506 INFO L78 Accepts]: Start accepts. Automaton has 3755 states and 4675 transitions. Word has length 240 [2024-11-13 16:32:09,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:09,506 INFO L471 AbstractCegarLoop]: Abstraction has 3755 states and 4675 transitions. [2024-11-13 16:32:09,507 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.333333333333336) internal successors, (166), 3 states have internal predecessors, (166), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:09,507 INFO L276 IsEmpty]: Start isEmpty. Operand 3755 states and 4675 transitions. [2024-11-13 16:32:09,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 272 [2024-11-13 16:32:09,516 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:09,517 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-13 16:32:09,537 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 16:32:09,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:32:09,718 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:09,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:09,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1936805294, now seen corresponding path program 1 times [2024-11-13 16:32:09,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:09,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [38673940] [2024-11-13 16:32:09,719 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:09,719 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:10,129 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-13 16:32:10,129 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:10,129 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [38673940] [2024-11-13 16:32:10,130 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [38673940] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:10,130 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:10,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:32:10,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2090348415] [2024-11-13 16:32:10,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:10,130 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:10,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:10,131 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:10,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:10,131 INFO L87 Difference]: Start difference. First operand 3755 states and 4675 transitions. Second operand has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:11,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:11,260 INFO L93 Difference]: Finished difference Result 8622 states and 10849 transitions. [2024-11-13 16:32:11,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:11,261 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 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 271 [2024-11-13 16:32:11,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:11,279 INFO L225 Difference]: With dead ends: 8622 [2024-11-13 16:32:11,280 INFO L226 Difference]: Without dead ends: 4869 [2024-11-13 16:32:11,284 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 16:32:11,285 INFO L432 NwaCegarLoop]: 369 mSDtfsCounter, 144 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 586 mSolverCounterSat, 92 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 144 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 678 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 92 IncrementalHoareTripleChecker+Valid, 586 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:11,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [144 Valid, 391 Invalid, 678 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [92 Valid, 586 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 16:32:11,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4869 states. [2024-11-13 16:32:11,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4869 to 4860. [2024-11-13 16:32:11,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4860 states, 4859 states have (on average 1.2251492076558963) internal successors, (5953), 4859 states have internal predecessors, (5953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:11,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4860 states to 4860 states and 5953 transitions. [2024-11-13 16:32:11,397 INFO L78 Accepts]: Start accepts. Automaton has 4860 states and 5953 transitions. Word has length 271 [2024-11-13 16:32:11,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:11,398 INFO L471 AbstractCegarLoop]: Abstraction has 4860 states and 5953 transitions. [2024-11-13 16:32:11,398 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 58.666666666666664) internal successors, (176), 3 states have internal predecessors, (176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:11,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4860 states and 5953 transitions. [2024-11-13 16:32:11,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-13 16:32:11,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:11,409 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:11,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 16:32:11,409 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:11,409 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:11,409 INFO L85 PathProgramCache]: Analyzing trace with hash 1645113833, now seen corresponding path program 1 times [2024-11-13 16:32:11,409 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:11,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300467586] [2024-11-13 16:32:11,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:11,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:11,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:11,704 INFO L134 CoverageAnalysis]: Checked inductivity of 370 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 221 trivial. 0 not checked. [2024-11-13 16:32:11,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:11,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300467586] [2024-11-13 16:32:11,704 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300467586] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:11,704 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:11,705 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:32:11,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2101921581] [2024-11-13 16:32:11,705 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:11,705 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:11,705 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:11,706 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:11,706 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:11,706 INFO L87 Difference]: Start difference. First operand 4860 states and 5953 transitions. Second operand has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:12,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:12,725 INFO L93 Difference]: Finished difference Result 11005 states and 13678 transitions. [2024-11-13 16:32:12,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:12,726 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 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 317 [2024-11-13 16:32:12,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:12,746 INFO L225 Difference]: With dead ends: 11005 [2024-11-13 16:32:12,746 INFO L226 Difference]: Without dead ends: 6147 [2024-11-13 16:32:12,750 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:12,751 INFO L432 NwaCegarLoop]: 126 mSDtfsCounter, 172 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 497 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 497 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:12,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 152 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 497 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-13 16:32:12,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6147 states. [2024-11-13 16:32:12,843 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6147 to 4853. [2024-11-13 16:32:12,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4853 states, 4852 states have (on average 1.224855729596043) internal successors, (5943), 4852 states have internal predecessors, (5943), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:12,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4853 states to 4853 states and 5943 transitions. [2024-11-13 16:32:12,864 INFO L78 Accepts]: Start accepts. Automaton has 4853 states and 5943 transitions. Word has length 317 [2024-11-13 16:32:12,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:12,865 INFO L471 AbstractCegarLoop]: Abstraction has 4853 states and 5943 transitions. [2024-11-13 16:32:12,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 55.666666666666664) internal successors, (167), 3 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:12,865 INFO L276 IsEmpty]: Start isEmpty. Operand 4853 states and 5943 transitions. [2024-11-13 16:32:12,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 337 [2024-11-13 16:32:12,876 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:12,876 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:32:12,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 16:32:12,876 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:12,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:12,877 INFO L85 PathProgramCache]: Analyzing trace with hash -1991221962, now seen corresponding path program 1 times [2024-11-13 16:32:12,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:12,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690334164] [2024-11-13 16:32:12,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:12,877 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:12,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:13,861 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 167 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:13,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690334164] [2024-11-13 16:32:13,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690334164] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 16:32:13,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962014307] [2024-11-13 16:32:13,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:13,865 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:32:13,865 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 16:32:13,867 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 16:32:13,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 16:32:14,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:14,063 INFO L255 TraceCheckSpWp]: Trace formula consists of 447 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-13 16:32:14,078 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 16:32:16,178 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 167 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:16,179 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 16:32:18,836 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 167 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:18,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [962014307] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 16:32:18,836 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 16:32:18,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-11-13 16:32:18,837 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125040565] [2024-11-13 16:32:18,837 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 16:32:18,838 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-13 16:32:18,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:18,840 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-13 16:32:18,840 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-13 16:32:18,840 INFO L87 Difference]: Start difference. First operand 4853 states and 5943 transitions. Second operand has 8 states, 8 states have (on average 74.75) internal successors, (598), 7 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:22,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:22,645 INFO L93 Difference]: Finished difference Result 13800 states and 16837 transitions. [2024-11-13 16:32:22,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-13 16:32:22,646 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 74.75) internal successors, (598), 7 states have internal predecessors, (598), 0 states have call successors, (0), 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 336 [2024-11-13 16:32:22,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:22,674 INFO L225 Difference]: With dead ends: 13800 [2024-11-13 16:32:22,674 INFO L226 Difference]: Without dead ends: 8949 [2024-11-13 16:32:22,680 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 681 GetRequests, 668 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=75, Invalid=135, Unknown=0, NotChecked=0, Total=210 [2024-11-13 16:32:22,681 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 864 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 3058 mSolverCounterSat, 423 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 864 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 3481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 423 IncrementalHoareTripleChecker+Valid, 3058 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:22,681 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [864 Valid, 192 Invalid, 3481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [423 Valid, 3058 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-13 16:32:22,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8949 states. [2024-11-13 16:32:22,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8949 to 5035. [2024-11-13 16:32:22,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5035 states, 5034 states have (on average 1.22248708780294) internal successors, (6154), 5034 states have internal predecessors, (6154), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:22,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5035 states to 5035 states and 6154 transitions. [2024-11-13 16:32:22,813 INFO L78 Accepts]: Start accepts. Automaton has 5035 states and 6154 transitions. Word has length 336 [2024-11-13 16:32:22,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:22,814 INFO L471 AbstractCegarLoop]: Abstraction has 5035 states and 6154 transitions. [2024-11-13 16:32:22,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.75) internal successors, (598), 7 states have internal predecessors, (598), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:22,814 INFO L276 IsEmpty]: Start isEmpty. Operand 5035 states and 6154 transitions. [2024-11-13 16:32:22,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 358 [2024-11-13 16:32:22,825 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:22,826 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:32:22,848 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 16:32:23,030 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 16:32:23,031 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:23,031 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:23,031 INFO L85 PathProgramCache]: Analyzing trace with hash 619418857, now seen corresponding path program 1 times [2024-11-13 16:32:23,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:23,032 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005240427] [2024-11-13 16:32:23,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:23,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:23,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:23,557 INFO L134 CoverageAnalysis]: Checked inductivity of 241 backedges. 241 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 16:32:23,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:23,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005240427] [2024-11-13 16:32:23,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1005240427] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:23,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:23,557 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:32:23,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914794842] [2024-11-13 16:32:23,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:23,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:32:23,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:23,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:32:23,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:32:23,559 INFO L87 Difference]: Start difference. First operand 5035 states and 6154 transitions. Second operand has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:25,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:25,139 INFO L93 Difference]: Finished difference Result 13948 states and 17066 transitions. [2024-11-13 16:32:25,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:32:25,139 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 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 357 [2024-11-13 16:32:25,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:25,163 INFO L225 Difference]: With dead ends: 13948 [2024-11-13 16:32:25,163 INFO L226 Difference]: Without dead ends: 8915 [2024-11-13 16:32:25,168 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 16:32:25,169 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 238 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1099 mSolverCounterSat, 236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 1335 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 236 IncrementalHoareTripleChecker+Valid, 1099 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:25,169 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 65 Invalid, 1335 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [236 Valid, 1099 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 16:32:25,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8915 states. [2024-11-13 16:32:25,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8915 to 7441. [2024-11-13 16:32:25,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7441 states, 7440 states have (on average 1.1923387096774194) internal successors, (8871), 7440 states have internal predecessors, (8871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:25,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7441 states to 7441 states and 8871 transitions. [2024-11-13 16:32:25,357 INFO L78 Accepts]: Start accepts. Automaton has 7441 states and 8871 transitions. Word has length 357 [2024-11-13 16:32:25,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:25,359 INFO L471 AbstractCegarLoop]: Abstraction has 7441 states and 8871 transitions. [2024-11-13 16:32:25,360 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 89.25) internal successors, (357), 4 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:25,360 INFO L276 IsEmpty]: Start isEmpty. Operand 7441 states and 8871 transitions. [2024-11-13 16:32:25,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-13 16:32:25,377 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:25,378 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:25,379 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 16:32:25,379 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:25,379 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:25,380 INFO L85 PathProgramCache]: Analyzing trace with hash -33806506, now seen corresponding path program 1 times [2024-11-13 16:32:25,380 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:25,380 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928576307] [2024-11-13 16:32:25,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:25,380 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:25,922 INFO L134 CoverageAnalysis]: Checked inductivity of 469 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-13 16:32:25,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:25,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928576307] [2024-11-13 16:32:25,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928576307] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:25,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:25,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-13 16:32:25,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [962715721] [2024-11-13 16:32:25,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:25,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:32:25,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:25,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:32:25,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:32:25,925 INFO L87 Difference]: Start difference. First operand 7441 states and 8871 transitions. Second operand has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:27,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:27,514 INFO L93 Difference]: Finished difference Result 16170 states and 19194 transitions. [2024-11-13 16:32:27,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:32:27,516 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 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 431 [2024-11-13 16:32:27,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:27,554 INFO L225 Difference]: With dead ends: 16170 [2024-11-13 16:32:27,554 INFO L226 Difference]: Without dead ends: 8731 [2024-11-13 16:32:27,564 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 16:32:27,564 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 239 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1098 mSolverCounterSat, 194 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 239 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 1292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 194 IncrementalHoareTripleChecker+Valid, 1098 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:27,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [239 Valid, 64 Invalid, 1292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [194 Valid, 1098 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 16:32:27,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8731 states. [2024-11-13 16:32:27,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8731 to 7441. [2024-11-13 16:32:27,690 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7441 states, 7440 states have (on average 1.1923387096774194) internal successors, (8871), 7440 states have internal predecessors, (8871), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:27,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7441 states to 7441 states and 8871 transitions. [2024-11-13 16:32:27,701 INFO L78 Accepts]: Start accepts. Automaton has 7441 states and 8871 transitions. Word has length 431 [2024-11-13 16:32:27,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:27,702 INFO L471 AbstractCegarLoop]: Abstraction has 7441 states and 8871 transitions. [2024-11-13 16:32:27,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 82.0) internal successors, (328), 4 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:27,702 INFO L276 IsEmpty]: Start isEmpty. Operand 7441 states and 8871 transitions. [2024-11-13 16:32:27,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 432 [2024-11-13 16:32:27,717 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:27,718 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:32:27,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 16:32:27,718 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:27,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:27,720 INFO L85 PathProgramCache]: Analyzing trace with hash -1540480215, now seen corresponding path program 1 times [2024-11-13 16:32:27,720 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:27,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053344097] [2024-11-13 16:32:27,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:27,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:27,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:28,092 INFO L134 CoverageAnalysis]: Checked inductivity of 464 backedges. 414 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-13 16:32:28,093 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:28,093 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053344097] [2024-11-13 16:32:28,093 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053344097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:28,093 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:28,094 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:32:28,094 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923543060] [2024-11-13 16:32:28,094 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:28,094 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:28,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:28,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:28,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:28,095 INFO L87 Difference]: Start difference. First operand 7441 states and 8871 transitions. Second operand has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:29,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:29,082 INFO L93 Difference]: Finished difference Result 15080 states and 17958 transitions. [2024-11-13 16:32:29,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:29,083 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 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 431 [2024-11-13 16:32:29,083 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:29,098 INFO L225 Difference]: With dead ends: 15080 [2024-11-13 16:32:29,098 INFO L226 Difference]: Without dead ends: 7641 [2024-11-13 16:32:29,104 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 16:32:29,105 INFO L432 NwaCegarLoop]: 311 mSDtfsCounter, 107 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 546 mSolverCounterSat, 94 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 640 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 94 IncrementalHoareTripleChecker+Valid, 546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:29,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 329 Invalid, 640 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [94 Valid, 546 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-13 16:32:29,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7641 states. [2024-11-13 16:32:29,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7641 to 7257. [2024-11-13 16:32:29,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7257 states, 7256 states have (on average 1.160005512679162) internal successors, (8417), 7256 states have internal predecessors, (8417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:29,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7257 states to 7257 states and 8417 transitions. [2024-11-13 16:32:29,212 INFO L78 Accepts]: Start accepts. Automaton has 7257 states and 8417 transitions. Word has length 431 [2024-11-13 16:32:29,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:29,213 INFO L471 AbstractCegarLoop]: Abstraction has 7257 states and 8417 transitions. [2024-11-13 16:32:29,213 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:29,213 INFO L276 IsEmpty]: Start isEmpty. Operand 7257 states and 8417 transitions. [2024-11-13 16:32:29,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 489 [2024-11-13 16:32:29,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:29,230 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:32:29,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 16:32:29,230 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:29,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:29,231 INFO L85 PathProgramCache]: Analyzing trace with hash -107789906, now seen corresponding path program 1 times [2024-11-13 16:32:29,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:29,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704905648] [2024-11-13 16:32:29,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:29,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:29,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:29,645 INFO L134 CoverageAnalysis]: Checked inductivity of 550 backedges. 376 proven. 0 refuted. 0 times theorem prover too weak. 174 trivial. 0 not checked. [2024-11-13 16:32:29,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:29,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704905648] [2024-11-13 16:32:29,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704905648] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:29,645 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:29,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 16:32:29,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530361787] [2024-11-13 16:32:29,646 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:29,646 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:29,646 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:29,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:29,647 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:29,647 INFO L87 Difference]: Start difference. First operand 7257 states and 8417 transitions. Second operand has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:30,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:30,153 INFO L93 Difference]: Finished difference Result 14132 states and 16360 transitions. [2024-11-13 16:32:30,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:30,154 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 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 488 [2024-11-13 16:32:30,155 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:30,169 INFO L225 Difference]: With dead ends: 14132 [2024-11-13 16:32:30,169 INFO L226 Difference]: Without dead ends: 6877 [2024-11-13 16:32:30,174 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 16:32:30,175 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 179 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 300 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 179 SdHoareTripleChecker+Valid, 37 SdHoareTripleChecker+Invalid, 303 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 300 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:30,175 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [179 Valid, 37 Invalid, 303 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 300 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-13 16:32:30,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6877 states. [2024-11-13 16:32:30,243 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6877 to 6875. [2024-11-13 16:32:30,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6875 states, 6874 states have (on average 1.1544951993017165) internal successors, (7936), 6874 states have internal predecessors, (7936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:30,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6875 states to 6875 states and 7936 transitions. [2024-11-13 16:32:30,261 INFO L78 Accepts]: Start accepts. Automaton has 6875 states and 7936 transitions. Word has length 488 [2024-11-13 16:32:30,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:30,261 INFO L471 AbstractCegarLoop]: Abstraction has 6875 states and 7936 transitions. [2024-11-13 16:32:30,262 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 105.33333333333333) internal successors, (316), 2 states have internal predecessors, (316), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:30,262 INFO L276 IsEmpty]: Start isEmpty. Operand 6875 states and 7936 transitions. [2024-11-13 16:32:30,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-11-13 16:32:30,272 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:30,273 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 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 16:32:30,273 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-13 16:32:30,273 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:30,273 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:30,274 INFO L85 PathProgramCache]: Analyzing trace with hash -1176343400, now seen corresponding path program 1 times [2024-11-13 16:32:30,274 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:30,274 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946183615] [2024-11-13 16:32:30,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:30,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:30,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:30,617 INFO L134 CoverageAnalysis]: Checked inductivity of 551 backedges. 427 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-13 16:32:30,618 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:30,618 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946183615] [2024-11-13 16:32:30,618 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946183615] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:30,618 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:30,618 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:32:30,620 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36100069] [2024-11-13 16:32:30,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:30,620 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:30,621 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:30,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:30,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:30,622 INFO L87 Difference]: Start difference. First operand 6875 states and 7936 transitions. Second operand has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:31,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:31,390 INFO L93 Difference]: Finished difference Result 12621 states and 14535 transitions. [2024-11-13 16:32:31,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:31,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 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 504 [2024-11-13 16:32:31,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:31,403 INFO L225 Difference]: With dead ends: 12621 [2024-11-13 16:32:31,403 INFO L226 Difference]: Without dead ends: 5748 [2024-11-13 16:32:31,408 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 16:32:31,408 INFO L432 NwaCegarLoop]: 106 mSDtfsCounter, 80 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 442 mSolverCounterSat, 124 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 566 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 124 IncrementalHoareTripleChecker+Valid, 442 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:31,409 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 123 Invalid, 566 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [124 Valid, 442 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 16:32:31,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5748 states. [2024-11-13 16:32:31,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5748 to 4828. [2024-11-13 16:32:31,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4828 states, 4827 states have (on average 1.1247151439817693) internal successors, (5429), 4827 states have internal predecessors, (5429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:31,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4828 states to 4828 states and 5429 transitions. [2024-11-13 16:32:31,469 INFO L78 Accepts]: Start accepts. Automaton has 4828 states and 5429 transitions. Word has length 504 [2024-11-13 16:32:31,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:31,470 INFO L471 AbstractCegarLoop]: Abstraction has 4828 states and 5429 transitions. [2024-11-13 16:32:31,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 127.0) internal successors, (381), 3 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:31,470 INFO L276 IsEmpty]: Start isEmpty. Operand 4828 states and 5429 transitions. [2024-11-13 16:32:31,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 683 [2024-11-13 16:32:31,479 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:31,479 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 16:32:31,479 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 16:32:31,479 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:31,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:31,480 INFO L85 PathProgramCache]: Analyzing trace with hash 924008789, now seen corresponding path program 1 times [2024-11-13 16:32:31,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:31,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1351813010] [2024-11-13 16:32:31,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:31,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:31,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:32,062 INFO L134 CoverageAnalysis]: Checked inductivity of 1298 backedges. 872 proven. 0 refuted. 0 times theorem prover too weak. 426 trivial. 0 not checked. [2024-11-13 16:32:32,062 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:32,062 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1351813010] [2024-11-13 16:32:32,062 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1351813010] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:32,063 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:32,063 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:32:32,063 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858282605] [2024-11-13 16:32:32,063 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:32,064 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 16:32:32,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:32,064 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 16:32:32,064 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:32:32,065 INFO L87 Difference]: Start difference. First operand 4828 states and 5429 transitions. Second operand has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:33,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:33,293 INFO L93 Difference]: Finished difference Result 14635 states and 16469 transitions. [2024-11-13 16:32:33,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 16:32:33,293 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 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 682 [2024-11-13 16:32:33,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:33,307 INFO L225 Difference]: With dead ends: 14635 [2024-11-13 16:32:33,307 INFO L226 Difference]: Without dead ends: 9809 [2024-11-13 16:32:33,312 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 16:32:33,312 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 215 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 1032 mSolverCounterSat, 142 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 142 IncrementalHoareTripleChecker+Valid, 1032 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:33,313 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 54 Invalid, 1174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [142 Valid, 1032 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 16:32:33,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9809 states. [2024-11-13 16:32:33,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9809 to 9620. [2024-11-13 16:32:33,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9620 states, 9619 states have (on average 1.1143570017673354) internal successors, (10719), 9619 states have internal predecessors, (10719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:33,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9620 states to 9620 states and 10719 transitions. [2024-11-13 16:32:33,431 INFO L78 Accepts]: Start accepts. Automaton has 9620 states and 10719 transitions. Word has length 682 [2024-11-13 16:32:33,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:33,432 INFO L471 AbstractCegarLoop]: Abstraction has 9620 states and 10719 transitions. [2024-11-13 16:32:33,432 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 107.0) internal successors, (428), 3 states have internal predecessors, (428), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:33,432 INFO L276 IsEmpty]: Start isEmpty. Operand 9620 states and 10719 transitions. [2024-11-13 16:32:33,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 761 [2024-11-13 16:32:33,445 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:33,446 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 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] [2024-11-13 16:32:33,446 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 16:32:33,446 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:33,446 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:33,447 INFO L85 PathProgramCache]: Analyzing trace with hash -984133557, now seen corresponding path program 1 times [2024-11-13 16:32:33,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:33,447 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288448766] [2024-11-13 16:32:33,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:33,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:33,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:33,997 INFO L134 CoverageAnalysis]: Checked inductivity of 1733 backedges. 1023 proven. 0 refuted. 0 times theorem prover too weak. 710 trivial. 0 not checked. [2024-11-13 16:32:33,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:33,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288448766] [2024-11-13 16:32:33,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288448766] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:33,998 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:33,998 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:32:33,998 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455732208] [2024-11-13 16:32:33,998 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:33,999 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:33,999 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:34,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:34,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:34,000 INFO L87 Difference]: Start difference. First operand 9620 states and 10719 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:34,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:34,787 INFO L93 Difference]: Finished difference Result 20341 states and 22719 transitions. [2024-11-13 16:32:34,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:34,787 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 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 760 [2024-11-13 16:32:34,788 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:34,794 INFO L225 Difference]: With dead ends: 20341 [2024-11-13 16:32:34,794 INFO L226 Difference]: Without dead ends: 10170 [2024-11-13 16:32:34,800 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 16:32:34,801 INFO L432 NwaCegarLoop]: 321 mSDtfsCounter, 194 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 89 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 590 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 89 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:34,801 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 340 Invalid, 590 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [89 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 16:32:34,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10170 states. [2024-11-13 16:32:34,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10170 to 10170. [2024-11-13 16:32:34,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10170 states, 10169 states have (on average 1.0946995771462287) internal successors, (11132), 10169 states have internal predecessors, (11132), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:34,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10170 states to 10170 states and 11132 transitions. [2024-11-13 16:32:34,984 INFO L78 Accepts]: Start accepts. Automaton has 10170 states and 11132 transitions. Word has length 760 [2024-11-13 16:32:34,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:34,985 INFO L471 AbstractCegarLoop]: Abstraction has 10170 states and 11132 transitions. [2024-11-13 16:32:34,985 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:34,986 INFO L276 IsEmpty]: Start isEmpty. Operand 10170 states and 11132 transitions. [2024-11-13 16:32:35,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 851 [2024-11-13 16:32:35,010 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 16:32:35,010 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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] [2024-11-13 16:32:35,010 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 16:32:35,010 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 16:32:35,011 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 16:32:35,011 INFO L85 PathProgramCache]: Analyzing trace with hash -134099357, now seen corresponding path program 1 times [2024-11-13 16:32:35,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 16:32:35,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261828251] [2024-11-13 16:32:35,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 16:32:35,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 16:32:35,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 16:32:35,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2081 backedges. 1501 proven. 0 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2024-11-13 16:32:35,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 16:32:35,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261828251] [2024-11-13 16:32:35,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [261828251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 16:32:35,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 16:32:35,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 16:32:35,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1433816443] [2024-11-13 16:32:35,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 16:32:35,600 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 16:32:35,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 16:32:35,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 16:32:35,601 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 16:32:35,601 INFO L87 Difference]: Start difference. First operand 10170 states and 11132 transitions. Second operand has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:36,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 16:32:36,400 INFO L93 Difference]: Finished difference Result 20887 states and 22855 transitions. [2024-11-13 16:32:36,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 16:32:36,400 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 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 850 [2024-11-13 16:32:36,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 16:32:36,401 INFO L225 Difference]: With dead ends: 20887 [2024-11-13 16:32:36,401 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 16:32:36,406 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 16:32:36,407 INFO L432 NwaCegarLoop]: 303 mSDtfsCounter, 53 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 525 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 591 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 525 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-13 16:32:36,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 320 Invalid, 591 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 525 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-13 16:32:36,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 16:32:36,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 16:32:36,408 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 16:32:36,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 16:32:36,408 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 850 [2024-11-13 16:32:36,408 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 16:32:36,408 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 16:32:36,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 150.66666666666666) internal successors, (452), 3 states have internal predecessors, (452), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 16:32:36,409 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 16:32:36,409 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 16:32:36,412 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 16:32:36,412 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 16:32:36,416 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 16:32:36,418 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 16:32:39,363 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 16:32:39,393 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 04:32:39 BoogieIcfgContainer [2024-11-13 16:32:39,396 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 16:32:39,397 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 16:32:39,397 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 16:32:39,397 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 16:32:39,399 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 04:31:58" (3/4) ... [2024-11-13 16:32:39,401 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 16:32:39,423 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-13 16:32:39,424 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 16:32:39,425 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 16:32:39,426 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 16:32:39,624 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 16:32:39,624 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 16:32:39,624 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 16:32:39,627 INFO L158 Benchmark]: Toolchain (without parser) took 44363.12ms. Allocated memory was 142.6MB in the beginning and 696.3MB in the end (delta: 553.6MB). Free memory was 116.3MB in the beginning and 253.9MB in the end (delta: -137.5MB). Peak memory consumption was 416.7MB. Max. memory is 16.1GB. [2024-11-13 16:32:39,627 INFO L158 Benchmark]: CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 16:32:39,628 INFO L158 Benchmark]: CACSL2BoogieTranslator took 917.35ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 73.4MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-11-13 16:32:39,628 INFO L158 Benchmark]: Boogie Procedure Inliner took 148.94ms. Allocated memory is still 142.6MB. Free memory was 73.2MB in the beginning and 56.5MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:32:39,628 INFO L158 Benchmark]: Boogie Preprocessor took 159.30ms. Allocated memory is still 142.6MB. Free memory was 56.5MB in the beginning and 93.9MB in the end (delta: -37.3MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. [2024-11-13 16:32:39,629 INFO L158 Benchmark]: RCFGBuilder took 2257.89ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 100.4MB in the end (delta: -6.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2024-11-13 16:32:39,629 INFO L158 Benchmark]: TraceAbstraction took 40638.92ms. Allocated memory was 142.6MB in the beginning and 696.3MB in the end (delta: 553.6MB). Free memory was 100.4MB in the beginning and 270.6MB in the end (delta: -170.2MB). Peak memory consumption was 426.0MB. Max. memory is 16.1GB. [2024-11-13 16:32:39,629 INFO L158 Benchmark]: Witness Printer took 227.51ms. Allocated memory is still 696.3MB. Free memory was 270.6MB in the beginning and 253.9MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 16:32:39,630 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.37ms. Allocated memory is still 142.6MB. Free memory is still 81.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 917.35ms. Allocated memory is still 142.6MB. Free memory was 116.1MB in the beginning and 73.4MB in the end (delta: 42.6MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 148.94ms. Allocated memory is still 142.6MB. Free memory was 73.2MB in the beginning and 56.5MB in the end (delta: 16.6MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 159.30ms. Allocated memory is still 142.6MB. Free memory was 56.5MB in the beginning and 93.9MB in the end (delta: -37.3MB). Peak memory consumption was 30.1MB. Max. memory is 16.1GB. * RCFGBuilder took 2257.89ms. Allocated memory is still 142.6MB. Free memory was 93.9MB in the beginning and 100.4MB in the end (delta: -6.6MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * TraceAbstraction took 40638.92ms. Allocated memory was 142.6MB in the beginning and 696.3MB in the end (delta: 553.6MB). Free memory was 100.4MB in the beginning and 270.6MB in the end (delta: -170.2MB). Peak memory consumption was 426.0MB. Max. memory is 16.1GB. * Witness Printer took 227.51ms. Allocated memory is still 696.3MB. Free memory was 270.6MB in the beginning and 253.9MB in the end (delta: 16.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 172]: 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, 283 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 37.6s, OverallIterations: 17, TraceHistogramMax: 7, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 21.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3409 SdHoareTripleChecker+Valid, 19.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3409 mSDsluCounter, 3459 SdHoareTripleChecker+Invalid, 16.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 428 mSDsCounter, 2176 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 13085 IncrementalHoareTripleChecker+Invalid, 15261 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2176 mSolverCounterUnsat, 3031 mSDtfsCounter, 13085 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 969 GetRequests, 932 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10170occurred in iteration=16, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.5s AutomataMinimizationTime, 17 MinimizatonAttempts, 9684 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 11.9s InterpolantComputationTime, 6950 NumberOfCodeBlocks, 6950 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 7266 ConstructedInterpolants, 0 QuantifiedInterpolants, 24163 SizeOfPredicates, 8 NumberOfNonLiveVariables, 797 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 20 InterpolantComputations, 16 PerfectInterpolantSequences, 9112/9275 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: 1044]: Loop Invariant Derived loop invariant: ((((((((((((((((((((a25 <= 10) && (a29 <= 599999)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15)) || ((((a25 == 11) && (a29 <= 599998)) && (a4 == 1)) && (a8 == 15))) || ((((a25 == 12) && (a4 == 0)) && (a29 <= 599998)) && (a8 == 15))) || ((((a25 == 13) && (a29 <= 245)) && (a4 == 1)) && (a8 == 15))) || ((((((a25 == 13) && (a4 == 0)) && (((long long) a29 + 22) <= 0)) && (a23 <= 138)) && (a8 == 15)) && (0 <= ((long long) a23 + 42)))) || ((((((a25 == 13) && (307 <= a23)) || ((a25 == 13) && (a3 == 1))) && (a29 <= 599998)) && (a4 == 1)) && (a8 == 15))) || (((((a25 == 11) && (a29 <= 599999)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || ((((((a25 <= 10) && (a3 == 1)) && (a23 <= 138)) && (a4 == 1)) && (a8 == 15)) && (0 <= ((long long) a23 + 42)))) || ((((a25 <= 10) && (a29 <= 599998)) && (a4 == 1)) && (a8 == 15))) || (((((a4 == 0) && (a25 == 11)) && (a29 <= 599998)) && (a23 <= 312)) && (a8 == 15))) || ((((a4 == 0) && (((long long) a29 + 22) <= 0)) && (a25 <= 10)) && (a8 == 15))) || (((((((long long) a29 + 21) <= 0) && (a25 == 12)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || ((((a25 == 12) && (((long long) a29 + 22) <= 0)) && (a4 == 1)) && (a8 == 15))) || (((((a4 == 0) && (a25 <= 10)) && (a29 <= 245)) && (a23 <= 138)) && (a8 == 15))) || ((((((a25 == 12) && (307 <= a23)) && (a29 <= 599998)) && (a3 == 1)) && (a4 == 1)) && (a8 == 15))) || (((((((long long) a23 + 43) <= 0) && (a4 == 0)) && (a25 <= 10)) && (a29 <= 599998)) && (a8 == 15))) RESULT: Ultimate proved your program to be correct! [2024-11-13 16:32:39,667 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_8828c58a-5f47-402b-925e-fb3831aaf776/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE