./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem15_label06.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_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/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_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem15_label06.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/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_e12c8982-e983-404d-8cd6-0cc575d31c31/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 635a20a5fbe25b0b925b40af9246e2b23986521025b17b70ac19e8d17c6a453c --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 13:19:46,697 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 13:19:46,754 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 13:19:46,758 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 13:19:46,758 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 13:19:46,781 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 13:19:46,781 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 13:19:46,782 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 13:19:46,782 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 13:19:46,782 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 13:19:46,782 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 13:19:46,782 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 13:19:46,783 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 13:19:46,783 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 13:19:46,783 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 13:19:46,783 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 13:19:46,783 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 13:19:46,784 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 13:19:46,784 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 13:19:46,784 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 13:19:46,784 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 13:19:46,784 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 13:19:46,784 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 13:19:46,785 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 13:19:46,785 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 13:19:46,785 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 13:19:46,785 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 13:19:46,785 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 13:19:46,785 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 13:19:46,785 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 13:19:46,786 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 13:19:46,786 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 13:19:46,786 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:19:46,786 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 13:19:46,786 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 13:19:46,786 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 13:19:46,786 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 13:19:46,787 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 13:19:46,787 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 13:19:46,787 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 13:19:46,787 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 13:19:46,787 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 13:19:46,787 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_e12c8982-e983-404d-8cd6-0cc575d31c31/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 -> 635a20a5fbe25b0b925b40af9246e2b23986521025b17b70ac19e8d17c6a453c [2024-11-13 13:19:47,126 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 13:19:47,134 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 13:19:47,136 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 13:19:47,137 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 13:19:47,137 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 13:19:47,143 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem15_label06.c Unable to find full path for "g++" [2024-11-13 13:19:49,056 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 13:19:49,567 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 13:19:49,567 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/sv-benchmarks/c/eca-rers2012/Problem15_label06.c [2024-11-13 13:19:49,595 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/data/f69ff05c7/569befdcb80e467486608a084cbaae85/FLAG2ed13fd04 [2024-11-13 13:19:49,619 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/data/f69ff05c7/569befdcb80e467486608a084cbaae85 [2024-11-13 13:19:49,622 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 13:19:49,625 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 13:19:49,627 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 13:19:49,628 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 13:19:49,633 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 13:19:49,634 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:19:49" (1/1) ... [2024-11-13 13:19:49,634 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7311242d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:49, skipping insertion in model container [2024-11-13 13:19:49,636 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 01:19:49" (1/1) ... [2024-11-13 13:19:49,722 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 13:19:49,960 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_e12c8982-e983-404d-8cd6-0cc575d31c31/sv-benchmarks/c/eca-rers2012/Problem15_label06.c[6824,6837] [2024-11-13 13:19:50,431 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:19:50,443 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 13:19:50,475 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_e12c8982-e983-404d-8cd6-0cc575d31c31/sv-benchmarks/c/eca-rers2012/Problem15_label06.c[6824,6837] [2024-11-13 13:19:50,746 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 13:19:50,769 INFO L204 MainTranslator]: Completed translation [2024-11-13 13:19:50,770 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50 WrapperNode [2024-11-13 13:19:50,772 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 13:19:50,773 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 13:19:50,774 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 13:19:50,775 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 13:19:50,783 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:50,820 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,150 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1759 [2024-11-13 13:19:51,151 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 13:19:51,152 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 13:19:51,152 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 13:19:51,152 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 13:19:51,161 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,162 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,192 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,313 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 13:19:51,320 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,321 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,484 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,532 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,559 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,577 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,661 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 13:19:51,664 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 13:19:51,666 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 13:19:51,667 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 13:19:51,668 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (1/1) ... [2024-11-13 13:19:51,675 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 13:19:51,690 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:19:51,706 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 13:19:51,710 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 13:19:51,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 13:19:51,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 13:19:51,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 13:19:51,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 13:19:51,849 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 13:19:51,854 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:19:56,010 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-13 13:19:56,011 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:19:56,053 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:19:56,054 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:19:56,054 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:19:56 BoogieIcfgContainer [2024-11-13 13:19:56,054 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:19:56,060 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:19:56,062 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:19:56,068 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:19:56,068 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 01:19:49" (1/3) ... [2024-11-13 13:19:56,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535f3e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:19:56, skipping insertion in model container [2024-11-13 13:19:56,069 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 01:19:50" (2/3) ... [2024-11-13 13:19:56,069 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@535f3e55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:19:56, skipping insertion in model container [2024-11-13 13:19:56,070 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:19:56" (3/3) ... [2024-11-13 13:19:56,071 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label06.c [2024-11-13 13:19:56,091 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:19:56,093 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem15_label06.c that has 1 procedures, 424 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:19:56,177 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:19:56,194 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;@54d8e407, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:19:56,195 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:19:56,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:19:56,216 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-13 13:19:56,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:19:56,218 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:19:56,219 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:19:56,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:19:56,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1600093166, now seen corresponding path program 1 times [2024-11-13 13:19:56,235 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:19:56,236 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107144677] [2024-11-13 13:19:56,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:19:56,238 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:19:56,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:19:56,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:19:56,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:19:56,843 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107144677] [2024-11-13 13:19:56,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107144677] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:19:56,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:19:56,845 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:19:56,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928640631] [2024-11-13 13:19:56,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:19:56,856 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:19:56,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:19:56,884 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:19:56,885 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:19:56,889 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:19:59,626 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.67s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 13:20:01,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:01,764 INFO L93 Difference]: Finished difference Result 1154 states and 2106 transitions. [2024-11-13 13:20:01,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:01,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 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 56 [2024-11-13 13:20:01,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:01,786 INFO L225 Difference]: With dead ends: 1154 [2024-11-13 13:20:01,787 INFO L226 Difference]: Without dead ends: 665 [2024-11-13 13:20:01,791 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:01,795 INFO L432 NwaCegarLoop]: 335 mSDtfsCounter, 265 mSDsluCounter, 49 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 254 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 265 SdHoareTripleChecker+Valid, 384 SdHoareTripleChecker+Invalid, 1230 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 254 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:01,796 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [265 Valid, 384 Invalid, 1230 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [254 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 13:20:01,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 665 states. [2024-11-13 13:20:01,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 665 to 663. [2024-11-13 13:20:01,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 663 states, 662 states have (on average 1.4818731117824773) internal successors, (981), 662 states have internal predecessors, (981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:01,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 663 states to 663 states and 981 transitions. [2024-11-13 13:20:01,886 INFO L78 Accepts]: Start accepts. Automaton has 663 states and 981 transitions. Word has length 56 [2024-11-13 13:20:01,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:01,887 INFO L471 AbstractCegarLoop]: Abstraction has 663 states and 981 transitions. [2024-11-13 13:20:01,887 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.666666666666668) internal successors, (56), 2 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:01,887 INFO L276 IsEmpty]: Start isEmpty. Operand 663 states and 981 transitions. [2024-11-13 13:20:01,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2024-11-13 13:20:01,891 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:01,892 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:01,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:20:01,892 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:01,893 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:01,893 INFO L85 PathProgramCache]: Analyzing trace with hash -255826324, now seen corresponding path program 1 times [2024-11-13 13:20:01,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:01,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [324669138] [2024-11-13 13:20:01,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:01,894 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:02,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:02,698 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:02,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:02,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [324669138] [2024-11-13 13:20:02,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [324669138] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:02,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:02,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:20:02,700 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [895750833] [2024-11-13 13:20:02,700 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:02,703 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:02,704 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:02,704 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:02,705 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:02,705 INFO L87 Difference]: Start difference. First operand 663 states and 981 transitions. Second operand has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:05,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:05,714 INFO L93 Difference]: Finished difference Result 1624 states and 2315 transitions. [2024-11-13 13:20:05,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:05,715 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 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 121 [2024-11-13 13:20:05,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:05,720 INFO L225 Difference]: With dead ends: 1624 [2024-11-13 13:20:05,720 INFO L226 Difference]: Without dead ends: 963 [2024-11-13 13:20:05,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:05,723 INFO L432 NwaCegarLoop]: 299 mSDtfsCounter, 237 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 910 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 237 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 934 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:05,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [237 Valid, 337 Invalid, 934 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 910 Invalid, 0 Unknown, 0 Unchecked, 2.9s Time] [2024-11-13 13:20:05,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 963 states. [2024-11-13 13:20:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 963 to 963. [2024-11-13 13:20:05,765 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 963 states, 962 states have (on average 1.362785862785863) internal successors, (1311), 962 states have internal predecessors, (1311), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:05,770 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 963 states to 963 states and 1311 transitions. [2024-11-13 13:20:05,771 INFO L78 Accepts]: Start accepts. Automaton has 963 states and 1311 transitions. Word has length 121 [2024-11-13 13:20:05,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:05,771 INFO L471 AbstractCegarLoop]: Abstraction has 963 states and 1311 transitions. [2024-11-13 13:20:05,772 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.333333333333336) internal successors, (121), 2 states have internal predecessors, (121), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:05,772 INFO L276 IsEmpty]: Start isEmpty. Operand 963 states and 1311 transitions. [2024-11-13 13:20:05,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 127 [2024-11-13 13:20:05,776 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:05,776 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:05,777 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:20:05,777 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:05,778 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:05,778 INFO L85 PathProgramCache]: Analyzing trace with hash -659615844, now seen corresponding path program 1 times [2024-11-13 13:20:05,778 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:05,778 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607956520] [2024-11-13 13:20:05,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:05,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:05,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:06,091 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:06,092 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:06,092 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607956520] [2024-11-13 13:20:06,092 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607956520] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:06,092 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:06,092 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:20:06,093 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108783771] [2024-11-13 13:20:06,093 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:06,093 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:06,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:06,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:06,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:06,095 INFO L87 Difference]: Start difference. First operand 963 states and 1311 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:08,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:08,958 INFO L93 Difference]: Finished difference Result 2229 states and 3186 transitions. [2024-11-13 13:20:08,958 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:08,958 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 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 126 [2024-11-13 13:20:08,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:08,966 INFO L225 Difference]: With dead ends: 2229 [2024-11-13 13:20:08,966 INFO L226 Difference]: Without dead ends: 1567 [2024-11-13 13:20:08,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:08,973 INFO L432 NwaCegarLoop]: 279 mSDtfsCounter, 256 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 839 mSolverCounterSat, 285 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 256 SdHoareTripleChecker+Valid, 318 SdHoareTripleChecker+Invalid, 1124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 285 IncrementalHoareTripleChecker+Valid, 839 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:08,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [256 Valid, 318 Invalid, 1124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [285 Valid, 839 Invalid, 0 Unknown, 0 Unchecked, 2.8s Time] [2024-11-13 13:20:08,980 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1567 states. [2024-11-13 13:20:09,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1567 to 1266. [2024-11-13 13:20:09,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1265 states have (on average 1.3043478260869565) internal successors, (1650), 1265 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:09,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1650 transitions. [2024-11-13 13:20:09,022 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1650 transitions. Word has length 126 [2024-11-13 13:20:09,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:09,022 INFO L471 AbstractCegarLoop]: Abstraction has 1266 states and 1650 transitions. [2024-11-13 13:20:09,023 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:09,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1650 transitions. [2024-11-13 13:20:09,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-13 13:20:09,033 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:09,033 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-13 13:20:09,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:20:09,034 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:09,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:09,034 INFO L85 PathProgramCache]: Analyzing trace with hash -818408991, now seen corresponding path program 1 times [2024-11-13 13:20:09,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:09,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1750327687] [2024-11-13 13:20:09,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:09,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:09,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:09,568 INFO L134 CoverageAnalysis]: Checked inductivity of 181 backedges. 181 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:09,569 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:09,569 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1750327687] [2024-11-13 13:20:09,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1750327687] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:09,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:09,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:09,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1345656232] [2024-11-13 13:20:09,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:09,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:20:09,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:09,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:20:09,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:20:09,572 INFO L87 Difference]: Start difference. First operand 1266 states and 1650 transitions. Second operand has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:15,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:15,559 INFO L93 Difference]: Finished difference Result 4668 states and 6169 transitions. [2024-11-13 13:20:15,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:20:15,560 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-13 13:20:15,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:15,575 INFO L225 Difference]: With dead ends: 4668 [2024-11-13 13:20:15,576 INFO L226 Difference]: Without dead ends: 3404 [2024-11-13 13:20:15,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:20:15,579 INFO L432 NwaCegarLoop]: 290 mSDtfsCounter, 484 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 2277 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 484 SdHoareTripleChecker+Valid, 375 SdHoareTripleChecker+Invalid, 2546 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 2277 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:15,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [484 Valid, 375 Invalid, 2546 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 2277 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-13 13:20:15,585 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3404 states. [2024-11-13 13:20:15,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3404 to 3381. [2024-11-13 13:20:15,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3381 states, 3380 states have (on average 1.2363905325443787) internal successors, (4179), 3380 states have internal predecessors, (4179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:15,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3381 states to 3381 states and 4179 transitions. [2024-11-13 13:20:15,675 INFO L78 Accepts]: Start accepts. Automaton has 3381 states and 4179 transitions. Word has length 222 [2024-11-13 13:20:15,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:15,677 INFO L471 AbstractCegarLoop]: Abstraction has 3381 states and 4179 transitions. [2024-11-13 13:20:15,678 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.5) internal successors, (222), 3 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:15,678 INFO L276 IsEmpty]: Start isEmpty. Operand 3381 states and 4179 transitions. [2024-11-13 13:20:15,687 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2024-11-13 13:20:15,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:15,688 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:15,688 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:20:15,689 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:15,689 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:15,690 INFO L85 PathProgramCache]: Analyzing trace with hash 913102935, now seen corresponding path program 1 times [2024-11-13 13:20:15,690 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:15,690 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [128921256] [2024-11-13 13:20:15,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:15,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:15,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:16,069 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-13 13:20:16,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:16,069 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [128921256] [2024-11-13 13:20:16,069 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [128921256] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:16,069 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:16,070 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:20:16,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870288056] [2024-11-13 13:20:16,070 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:16,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:16,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:16,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:16,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:16,072 INFO L87 Difference]: Start difference. First operand 3381 states and 4179 transitions. Second operand has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:18,608 INFO L93 Difference]: Finished difference Result 8563 states and 10751 transitions. [2024-11-13 13:20:18,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:18,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 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 226 [2024-11-13 13:20:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:18,634 INFO L225 Difference]: With dead ends: 8563 [2024-11-13 13:20:18,635 INFO L226 Difference]: Without dead ends: 5483 [2024-11-13 13:20:18,639 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:18,641 INFO L432 NwaCegarLoop]: 273 mSDtfsCounter, 257 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 340 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:18,641 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 340 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:20:18,650 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5483 states. [2024-11-13 13:20:18,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5483 to 5478. [2024-11-13 13:20:18,822 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1683403322987036) internal successors, (6399), 5477 states have internal predecessors, (6399), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:18,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6399 transitions. [2024-11-13 13:20:18,840 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6399 transitions. Word has length 226 [2024-11-13 13:20:18,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:18,842 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6399 transitions. [2024-11-13 13:20:18,842 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.666666666666664) internal successors, (149), 2 states have internal predecessors, (149), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:18,843 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6399 transitions. [2024-11-13 13:20:18,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 329 [2024-11-13 13:20:18,852 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:18,853 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:18,853 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-13 13:20:18,853 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:18,854 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:18,854 INFO L85 PathProgramCache]: Analyzing trace with hash -969984643, now seen corresponding path program 1 times [2024-11-13 13:20:18,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:18,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1252487975] [2024-11-13 13:20:18,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:18,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:18,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:20,056 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-13 13:20:20,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:20,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1252487975] [2024-11-13 13:20:20,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1252487975] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:20,057 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:20,058 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:20:20,058 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [433950983] [2024-11-13 13:20:20,058 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:20,059 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:20,059 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:20,060 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:20,060 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:20,060 INFO L87 Difference]: Start difference. First operand 5478 states and 6399 transitions. Second operand has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:22,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:22,493 INFO L93 Difference]: Finished difference Result 10655 states and 12485 transitions. [2024-11-13 13:20:22,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:22,495 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 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 328 [2024-11-13 13:20:22,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:22,514 INFO L225 Difference]: With dead ends: 10655 [2024-11-13 13:20:22,514 INFO L226 Difference]: Without dead ends: 5478 [2024-11-13 13:20:22,521 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:22,523 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:22,525 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 13:20:22,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5478 states. [2024-11-13 13:20:22,628 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5478 to 5478. [2024-11-13 13:20:22,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5478 states, 5477 states have (on average 1.1672448420668249) internal successors, (6393), 5477 states have internal predecessors, (6393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:22,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5478 states to 5478 states and 6393 transitions. [2024-11-13 13:20:22,656 INFO L78 Accepts]: Start accepts. Automaton has 5478 states and 6393 transitions. Word has length 328 [2024-11-13 13:20:22,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:22,657 INFO L471 AbstractCegarLoop]: Abstraction has 5478 states and 6393 transitions. [2024-11-13 13:20:22,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 91.66666666666667) internal successors, (275), 2 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:22,658 INFO L276 IsEmpty]: Start isEmpty. Operand 5478 states and 6393 transitions. [2024-11-13 13:20:22,665 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 344 [2024-11-13 13:20:22,665 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:22,666 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:22,666 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:20:22,666 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:22,667 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:22,667 INFO L85 PathProgramCache]: Analyzing trace with hash -572685587, now seen corresponding path program 1 times [2024-11-13 13:20:22,667 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:22,667 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28772365] [2024-11-13 13:20:22,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:22,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:22,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:23,135 INFO L134 CoverageAnalysis]: Checked inductivity of 197 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-13 13:20:23,136 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:23,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28772365] [2024-11-13 13:20:23,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28772365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:23,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:23,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:23,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1538419427] [2024-11-13 13:20:23,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:23,137 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:23,137 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:23,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:23,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:23,140 INFO L87 Difference]: Start difference. First operand 5478 states and 6393 transitions. Second operand has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:25,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:25,889 INFO L93 Difference]: Finished difference Result 11851 states and 14145 transitions. [2024-11-13 13:20:25,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:25,890 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 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 343 [2024-11-13 13:20:25,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:25,904 INFO L225 Difference]: With dead ends: 11851 [2024-11-13 13:20:25,904 INFO L226 Difference]: Without dead ends: 6674 [2024-11-13 13:20:25,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:25,911 INFO L432 NwaCegarLoop]: 278 mSDtfsCounter, 259 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 323 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:25,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 323 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-13 13:20:25,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6674 states. [2024-11-13 13:20:26,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6674 to 4577. [2024-11-13 13:20:26,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4577 states, 4576 states have (on average 1.1840034965034965) internal successors, (5418), 4576 states have internal predecessors, (5418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:26,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4577 states to 4577 states and 5418 transitions. [2024-11-13 13:20:26,025 INFO L78 Accepts]: Start accepts. Automaton has 4577 states and 5418 transitions. Word has length 343 [2024-11-13 13:20:26,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:26,026 INFO L471 AbstractCegarLoop]: Abstraction has 4577 states and 5418 transitions. [2024-11-13 13:20:26,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 84.66666666666667) internal successors, (254), 3 states have internal predecessors, (254), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:26,027 INFO L276 IsEmpty]: Start isEmpty. Operand 4577 states and 5418 transitions. [2024-11-13 13:20:26,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-13 13:20:26,037 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:26,037 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:26,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:20:26,038 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:26,038 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:26,039 INFO L85 PathProgramCache]: Analyzing trace with hash -560069585, now seen corresponding path program 1 times [2024-11-13 13:20:26,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:26,039 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922891281] [2024-11-13 13:20:26,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:26,039 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:26,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:26,604 INFO L134 CoverageAnalysis]: Checked inductivity of 182 backedges. 107 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2024-11-13 13:20:26,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:26,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922891281] [2024-11-13 13:20:26,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922891281] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:26,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:26,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:26,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861533551] [2024-11-13 13:20:26,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:26,606 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:26,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:26,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:26,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:26,607 INFO L87 Difference]: Start difference. First operand 4577 states and 5418 transitions. Second operand has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 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 13:20:28,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.35s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-13 13:20:29,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:29,781 INFO L93 Difference]: Finished difference Result 10955 states and 13233 transitions. [2024-11-13 13:20:29,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:29,782 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 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 402 [2024-11-13 13:20:29,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:29,798 INFO L225 Difference]: With dead ends: 10955 [2024-11-13 13:20:29,798 INFO L226 Difference]: Without dead ends: 6679 [2024-11-13 13:20:29,801 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:29,802 INFO L432 NwaCegarLoop]: 598 mSDtfsCounter, 272 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 272 SdHoareTripleChecker+Valid, 635 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:29,802 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [272 Valid, 635 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-13 13:20:29,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6679 states. [2024-11-13 13:20:29,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6679 to 6081. [2024-11-13 13:20:29,999 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6081 states, 6080 states have (on average 1.1572368421052632) internal successors, (7036), 6080 states have internal predecessors, (7036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:30,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6081 states to 6081 states and 7036 transitions. [2024-11-13 13:20:30,019 INFO L78 Accepts]: Start accepts. Automaton has 6081 states and 7036 transitions. Word has length 402 [2024-11-13 13:20:30,020 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:30,020 INFO L471 AbstractCegarLoop]: Abstraction has 6081 states and 7036 transitions. [2024-11-13 13:20:30,020 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.33333333333333) internal successors, (328), 3 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 13:20:30,020 INFO L276 IsEmpty]: Start isEmpty. Operand 6081 states and 7036 transitions. [2024-11-13 13:20:30,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2024-11-13 13:20:30,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:30,027 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:30,028 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:20:30,029 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:30,029 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:30,030 INFO L85 PathProgramCache]: Analyzing trace with hash 881601187, now seen corresponding path program 1 times [2024-11-13 13:20:30,030 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:30,030 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1913958100] [2024-11-13 13:20:30,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:30,030 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:30,646 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 186 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:20:30,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:30,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1913958100] [2024-11-13 13:20:30,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1913958100] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:30,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:30,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:30,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1629730857] [2024-11-13 13:20:30,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:30,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:30,650 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:30,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:30,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:30,651 INFO L87 Difference]: Start difference. First operand 6081 states and 7036 transitions. Second operand has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:32,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:32,366 INFO L93 Difference]: Finished difference Result 13965 states and 16476 transitions. [2024-11-13 13:20:32,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:32,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 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 408 [2024-11-13 13:20:32,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:32,382 INFO L225 Difference]: With dead ends: 13965 [2024-11-13 13:20:32,382 INFO L226 Difference]: Without dead ends: 8185 [2024-11-13 13:20:32,384 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:32,385 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 250 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 250 SdHoareTripleChecker+Valid, 602 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:32,385 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [250 Valid, 602 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-13 13:20:32,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8185 states. [2024-11-13 13:20:32,450 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8185 to 7883. [2024-11-13 13:20:32,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7883 states, 7882 states have (on average 1.1386703882263385) internal successors, (8975), 7882 states have internal predecessors, (8975), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:32,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7883 states to 7883 states and 8975 transitions. [2024-11-13 13:20:32,473 INFO L78 Accepts]: Start accepts. Automaton has 7883 states and 8975 transitions. Word has length 408 [2024-11-13 13:20:32,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:32,474 INFO L471 AbstractCegarLoop]: Abstraction has 7883 states and 8975 transitions. [2024-11-13 13:20:32,475 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 136.0) internal successors, (408), 3 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:32,475 INFO L276 IsEmpty]: Start isEmpty. Operand 7883 states and 8975 transitions. [2024-11-13 13:20:32,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-13 13:20:32,480 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:32,480 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:32,481 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-13 13:20:32,481 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:32,482 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:32,486 INFO L85 PathProgramCache]: Analyzing trace with hash -898120926, now seen corresponding path program 1 times [2024-11-13 13:20:32,486 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:32,486 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547788801] [2024-11-13 13:20:32,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:32,486 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:32,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:33,033 INFO L134 CoverageAnalysis]: Checked inductivity of 412 backedges. 322 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-13 13:20:33,037 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:33,037 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547788801] [2024-11-13 13:20:33,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [547788801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:33,037 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:33,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:33,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072738976] [2024-11-13 13:20:33,037 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:33,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:33,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:33,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:33,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:33,041 INFO L87 Difference]: Start difference. First operand 7883 states and 8975 transitions. Second operand has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:35,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:35,327 INFO L93 Difference]: Finished difference Result 17259 states and 20018 transitions. [2024-11-13 13:20:35,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:35,328 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 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 424 [2024-11-13 13:20:35,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:35,353 INFO L225 Difference]: With dead ends: 17259 [2024-11-13 13:20:35,353 INFO L226 Difference]: Without dead ends: 9677 [2024-11-13 13:20:35,359 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:35,360 INFO L432 NwaCegarLoop]: 580 mSDtfsCounter, 245 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 619 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:35,361 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 619 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 13:20:35,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9677 states. [2024-11-13 13:20:35,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9677 to 9374. [2024-11-13 13:20:35,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9374 states, 9373 states have (on average 1.1290942067641097) internal successors, (10583), 9373 states have internal predecessors, (10583), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:35,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9374 states to 9374 states and 10583 transitions. [2024-11-13 13:20:35,495 INFO L78 Accepts]: Start accepts. Automaton has 9374 states and 10583 transitions. Word has length 424 [2024-11-13 13:20:35,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:35,495 INFO L471 AbstractCegarLoop]: Abstraction has 9374 states and 10583 transitions. [2024-11-13 13:20:35,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 111.66666666666667) internal successors, (335), 3 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:35,496 INFO L276 IsEmpty]: Start isEmpty. Operand 9374 states and 10583 transitions. [2024-11-13 13:20:35,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 521 [2024-11-13 13:20:35,503 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:35,504 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:35,504 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:20:35,505 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:35,505 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:35,505 INFO L85 PathProgramCache]: Analyzing trace with hash -229459979, now seen corresponding path program 1 times [2024-11-13 13:20:35,506 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:35,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521178437] [2024-11-13 13:20:35,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:35,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:35,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:35,984 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 275 trivial. 0 not checked. [2024-11-13 13:20:35,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:35,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521178437] [2024-11-13 13:20:35,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521178437] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:35,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:35,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:35,984 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [565350593] [2024-11-13 13:20:35,984 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:35,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:35,985 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:35,986 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:35,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:35,987 INFO L87 Difference]: Start difference. First operand 9374 states and 10583 transitions. Second operand has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:38,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:38,206 INFO L93 Difference]: Finished difference Result 20838 states and 23816 transitions. [2024-11-13 13:20:38,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:38,207 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 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 520 [2024-11-13 13:20:38,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:38,239 INFO L225 Difference]: With dead ends: 20838 [2024-11-13 13:20:38,239 INFO L226 Difference]: Without dead ends: 11765 [2024-11-13 13:20:38,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:38,250 INFO L432 NwaCegarLoop]: 427 mSDtfsCounter, 359 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 969 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 359 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 1096 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 969 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:38,250 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [359 Valid, 447 Invalid, 1096 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 969 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-13 13:20:38,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11765 states. [2024-11-13 13:20:38,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11765 to 11765. [2024-11-13 13:20:38,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11765 states, 11764 states have (on average 1.134308058483509) internal successors, (13344), 11764 states have internal predecessors, (13344), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:38,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11765 states to 11765 states and 13344 transitions. [2024-11-13 13:20:38,421 INFO L78 Accepts]: Start accepts. Automaton has 11765 states and 13344 transitions. Word has length 520 [2024-11-13 13:20:38,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:38,422 INFO L471 AbstractCegarLoop]: Abstraction has 11765 states and 13344 transitions. [2024-11-13 13:20:38,423 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.33333333333333) internal successors, (331), 3 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:38,423 INFO L276 IsEmpty]: Start isEmpty. Operand 11765 states and 13344 transitions. [2024-11-13 13:20:38,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 545 [2024-11-13 13:20:38,431 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:38,431 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:38,432 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-13 13:20:38,432 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:38,432 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:38,433 INFO L85 PathProgramCache]: Analyzing trace with hash -1087741103, now seen corresponding path program 1 times [2024-11-13 13:20:38,433 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:38,433 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1099862891] [2024-11-13 13:20:38,433 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:38,433 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:38,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:39,197 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 451 proven. 0 refuted. 0 times theorem prover too weak. 300 trivial. 0 not checked. [2024-11-13 13:20:39,198 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:39,198 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1099862891] [2024-11-13 13:20:39,198 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1099862891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:39,198 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:20:39,198 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:20:39,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1725598909] [2024-11-13 13:20:39,199 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:39,199 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:39,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:39,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:39,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:39,201 INFO L87 Difference]: Start difference. First operand 11765 states and 13344 transitions. Second operand has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:41,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:41,763 INFO L93 Difference]: Finished difference Result 28027 states and 32076 transitions. [2024-11-13 13:20:41,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:41,764 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 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 544 [2024-11-13 13:20:41,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:41,800 INFO L225 Difference]: With dead ends: 28027 [2024-11-13 13:20:41,800 INFO L226 Difference]: Without dead ends: 16563 [2024-11-13 13:20:41,809 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:20:41,810 INFO L432 NwaCegarLoop]: 588 mSDtfsCounter, 248 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1040 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 1210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 1040 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:41,811 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 620 Invalid, 1210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 1040 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-13 13:20:41,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16563 states. [2024-11-13 13:20:42,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16563 to 16253. [2024-11-13 13:20:42,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16253 states, 16252 states have (on average 1.125092296332759) internal successors, (18285), 16252 states have internal predecessors, (18285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:42,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16253 states to 16253 states and 18285 transitions. [2024-11-13 13:20:42,051 INFO L78 Accepts]: Start accepts. Automaton has 16253 states and 18285 transitions. Word has length 544 [2024-11-13 13:20:42,052 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:42,052 INFO L471 AbstractCegarLoop]: Abstraction has 16253 states and 18285 transitions. [2024-11-13 13:20:42,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.0) internal successors, (336), 3 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:42,053 INFO L276 IsEmpty]: Start isEmpty. Operand 16253 states and 18285 transitions. [2024-11-13 13:20:42,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 599 [2024-11-13 13:20:42,064 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:42,067 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:42,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:20:42,067 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:42,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:42,068 INFO L85 PathProgramCache]: Analyzing trace with hash 1860141227, now seen corresponding path program 1 times [2024-11-13 13:20:42,068 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:42,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744160841] [2024-11-13 13:20:42,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:42,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:44,139 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 162 proven. 320 refuted. 0 times theorem prover too weak. 241 trivial. 0 not checked. [2024-11-13 13:20:44,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:44,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744160841] [2024-11-13 13:20:44,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [744160841] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:20:44,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1390617343] [2024-11-13 13:20:44,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:44,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:20:44,141 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:44,147 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:20:44,149 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:20:44,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:44,513 INFO L255 TraceCheckSpWp]: Trace formula consists of 740 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:20:44,530 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:44,794 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 508 trivial. 0 not checked. [2024-11-13 13:20:44,794 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:20:44,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1390617343] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:20:44,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:20:44,795 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-13 13:20:44,795 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1317825744] [2024-11-13 13:20:44,795 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:20:44,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:20:44,797 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:44,798 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:20:44,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:20:44,799 INFO L87 Difference]: Start difference. First operand 16253 states and 18285 transitions. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:47,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:20:47,210 INFO L93 Difference]: Finished difference Result 31902 states and 35928 transitions. [2024-11-13 13:20:47,210 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:20:47,210 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 598 [2024-11-13 13:20:47,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:20:47,247 INFO L225 Difference]: With dead ends: 31902 [2024-11-13 13:20:47,247 INFO L226 Difference]: Without dead ends: 15950 [2024-11-13 13:20:47,259 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 602 GetRequests, 598 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:20:47,260 INFO L432 NwaCegarLoop]: 568 mSDtfsCounter, 275 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 209 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 275 SdHoareTripleChecker+Valid, 606 SdHoareTripleChecker+Invalid, 1087 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 209 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:20:47,260 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [275 Valid, 606 Invalid, 1087 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [209 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-13 13:20:47,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15950 states. [2024-11-13 13:20:47,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15950 to 15351. [2024-11-13 13:20:47,449 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15351 states, 15350 states have (on average 1.078371335504886) internal successors, (16553), 15350 states have internal predecessors, (16553), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:47,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15351 states to 15351 states and 16553 transitions. [2024-11-13 13:20:47,473 INFO L78 Accepts]: Start accepts. Automaton has 15351 states and 16553 transitions. Word has length 598 [2024-11-13 13:20:47,474 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:20:47,474 INFO L471 AbstractCegarLoop]: Abstraction has 15351 states and 16553 transitions. [2024-11-13 13:20:47,474 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:20:47,475 INFO L276 IsEmpty]: Start isEmpty. Operand 15351 states and 16553 transitions. [2024-11-13 13:20:47,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 612 [2024-11-13 13:20:47,485 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:20:47,486 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:20:47,513 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:20:47,687 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-13 13:20:47,687 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:20:47,687 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:20:47,688 INFO L85 PathProgramCache]: Analyzing trace with hash -1266743810, now seen corresponding path program 1 times [2024-11-13 13:20:47,688 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:20:47,688 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [151293994] [2024-11-13 13:20:47,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:47,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:20:47,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:48,851 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 604 proven. 39 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-13 13:20:48,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:20:48,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [151293994] [2024-11-13 13:20:48,852 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [151293994] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:20:48,852 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [881021212] [2024-11-13 13:20:48,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:20:48,852 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:20:48,852 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:20:48,855 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:20:48,858 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:20:49,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:20:49,169 INFO L255 TraceCheckSpWp]: Trace formula consists of 746 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-13 13:20:49,180 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:20:50,557 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 604 proven. 39 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-13 13:20:50,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-13 13:20:51,857 INFO L134 CoverageAnalysis]: Checked inductivity of 871 backedges. 604 proven. 39 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-11-13 13:20:51,858 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [881021212] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-13 13:20:51,858 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-13 13:20:51,858 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-11-13 13:20:51,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860264180] [2024-11-13 13:20:51,859 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-13 13:20:51,860 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-13 13:20:51,861 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:20:51,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-13 13:20:51,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:20:51,866 INFO L87 Difference]: Start difference. First operand 15351 states and 16553 transitions. Second operand has 9 states, 9 states have (on average 80.77777777777777) internal successors, (727), 8 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:02,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:02,506 INFO L93 Difference]: Finished difference Result 39032 states and 42065 transitions. [2024-11-13 13:21:02,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-13 13:21:02,507 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 80.77777777777777) internal successors, (727), 8 states have internal predecessors, (727), 0 states have call successors, (0), 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 611 [2024-11-13 13:21:02,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:02,532 INFO L225 Difference]: With dead ends: 39032 [2024-11-13 13:21:02,532 INFO L226 Difference]: Without dead ends: 16845 [2024-11-13 13:21:02,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1231 GetRequests, 1217 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2024-11-13 13:21:02,544 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 2641 mSDsluCounter, 218 mSDsCounter, 0 mSdLazyCounter, 7306 mSolverCounterSat, 620 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2641 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 7926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 620 IncrementalHoareTripleChecker+Valid, 7306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 10.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:02,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2641 Valid, 320 Invalid, 7926 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [620 Valid, 7306 Invalid, 0 Unknown, 0 Unchecked, 10.1s Time] [2024-11-13 13:21:02,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16845 states. [2024-11-13 13:21:02,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16845 to 12656. [2024-11-13 13:21:02,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12656 states, 12655 states have (on average 1.0378506519162387) internal successors, (13134), 12655 states have internal predecessors, (13134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:02,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12656 states to 12656 states and 13134 transitions. [2024-11-13 13:21:02,889 INFO L78 Accepts]: Start accepts. Automaton has 12656 states and 13134 transitions. Word has length 611 [2024-11-13 13:21:02,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:02,890 INFO L471 AbstractCegarLoop]: Abstraction has 12656 states and 13134 transitions. [2024-11-13 13:21:02,890 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 80.77777777777777) internal successors, (727), 8 states have internal predecessors, (727), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:02,890 INFO L276 IsEmpty]: Start isEmpty. Operand 12656 states and 13134 transitions. [2024-11-13 13:21:02,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 682 [2024-11-13 13:21:02,901 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:02,902 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:02,931 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-13 13:21:03,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-13 13:21:03,103 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:03,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:03,104 INFO L85 PathProgramCache]: Analyzing trace with hash 540929957, now seen corresponding path program 1 times [2024-11-13 13:21:03,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:03,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [852511798] [2024-11-13 13:21:03,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:03,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:03,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:03,875 INFO L134 CoverageAnalysis]: Checked inductivity of 621 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 460 trivial. 0 not checked. [2024-11-13 13:21:03,875 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:03,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [852511798] [2024-11-13 13:21:03,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [852511798] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:03,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:03,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:21:03,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1720777053] [2024-11-13 13:21:03,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:03,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:21:03,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:03,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:21:03,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:21:03,878 INFO L87 Difference]: Start difference. First operand 12656 states and 13134 transitions. Second operand has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:05,465 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:05,465 INFO L93 Difference]: Finished difference Result 27997 states and 29099 transitions. [2024-11-13 13:21:05,466 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:21:05,466 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 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 681 [2024-11-13 13:21:05,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:05,502 INFO L225 Difference]: With dead ends: 27997 [2024-11-13 13:21:05,502 INFO L226 Difference]: Without dead ends: 15343 [2024-11-13 13:21:05,512 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:21:05,513 INFO L432 NwaCegarLoop]: 159 mSDtfsCounter, 274 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 795 mSolverCounterSat, 107 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 274 SdHoareTripleChecker+Valid, 192 SdHoareTripleChecker+Invalid, 902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 107 IncrementalHoareTripleChecker+Valid, 795 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:05,514 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [274 Valid, 192 Invalid, 902 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [107 Valid, 795 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-13 13:21:05,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15343 states. [2024-11-13 13:21:05,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15343 to 14744. [2024-11-13 13:21:05,777 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14744 states, 14743 states have (on average 1.033643084853829) internal successors, (15239), 14743 states have internal predecessors, (15239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:05,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14744 states to 14744 states and 15239 transitions. [2024-11-13 13:21:05,811 INFO L78 Accepts]: Start accepts. Automaton has 14744 states and 15239 transitions. Word has length 681 [2024-11-13 13:21:05,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:05,812 INFO L471 AbstractCegarLoop]: Abstraction has 14744 states and 15239 transitions. [2024-11-13 13:21:05,813 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.66666666666667) internal successors, (329), 3 states have internal predecessors, (329), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:05,813 INFO L276 IsEmpty]: Start isEmpty. Operand 14744 states and 15239 transitions. [2024-11-13 13:21:05,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 689 [2024-11-13 13:21:05,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:05,833 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:05,834 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:21:05,834 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:05,835 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:05,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1396278226, now seen corresponding path program 1 times [2024-11-13 13:21:05,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:05,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083103048] [2024-11-13 13:21:05,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:05,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:06,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:07,372 INFO L134 CoverageAnalysis]: Checked inductivity of 849 backedges. 605 proven. 190 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-11-13 13:21:07,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:07,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083103048] [2024-11-13 13:21:07,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083103048] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:07,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [364709632] [2024-11-13 13:21:07,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:07,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:07,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:07,377 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:07,380 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:21:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:07,768 INFO L255 TraceCheckSpWp]: Trace formula consists of 826 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:21:07,780 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:08,281 INFO L134 CoverageAnalysis]: Checked inductivity of 849 backedges. 215 proven. 0 refuted. 0 times theorem prover too weak. 634 trivial. 0 not checked. [2024-11-13 13:21:08,282 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:21:08,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [364709632] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:08,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:21:08,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 13:21:08,283 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325331300] [2024-11-13 13:21:08,283 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:08,284 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:21:08,284 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:08,285 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:21:08,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:21:08,285 INFO L87 Difference]: Start difference. First operand 14744 states and 15239 transitions. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:10,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:10,187 INFO L93 Difference]: Finished difference Result 31296 states and 32405 transitions. [2024-11-13 13:21:10,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:21:10,188 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 688 [2024-11-13 13:21:10,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:10,206 INFO L225 Difference]: With dead ends: 31296 [2024-11-13 13:21:10,206 INFO L226 Difference]: Without dead ends: 16554 [2024-11-13 13:21:10,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 687 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:21:10,218 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 295 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 157 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 295 SdHoareTripleChecker+Valid, 127 SdHoareTripleChecker+Invalid, 956 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 157 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:10,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [295 Valid, 127 Invalid, 956 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [157 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-13 13:21:10,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16554 states. [2024-11-13 13:21:10,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16554 to 14444. [2024-11-13 13:21:10,408 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14444 states, 14443 states have (on average 1.0335802811050336) internal successors, (14928), 14443 states have internal predecessors, (14928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:10,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14444 states to 14444 states and 14928 transitions. [2024-11-13 13:21:10,428 INFO L78 Accepts]: Start accepts. Automaton has 14444 states and 14928 transitions. Word has length 688 [2024-11-13 13:21:10,429 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:10,429 INFO L471 AbstractCegarLoop]: Abstraction has 14444 states and 14928 transitions. [2024-11-13 13:21:10,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:10,430 INFO L276 IsEmpty]: Start isEmpty. Operand 14444 states and 14928 transitions. [2024-11-13 13:21:10,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 715 [2024-11-13 13:21:10,512 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:10,512 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:10,539 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:21:10,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-13 13:21:10,714 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:10,715 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:10,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1193634473, now seen corresponding path program 1 times [2024-11-13 13:21:10,715 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:10,715 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711034935] [2024-11-13 13:21:10,715 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:10,715 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:10,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:12,214 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 268 proven. 375 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:21:12,215 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:12,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711034935] [2024-11-13 13:21:12,215 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711034935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:12,215 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828091933] [2024-11-13 13:21:12,215 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:12,215 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:12,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:12,218 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:12,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:21:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:12,647 INFO L255 TraceCheckSpWp]: Trace formula consists of 831 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:21:12,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:15,359 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 537 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-13 13:21:15,360 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:21:15,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828091933] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:15,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:21:15,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-13 13:21:15,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1716433621] [2024-11-13 13:21:15,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:15,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:21:15,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:15,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:21:15,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:21:15,363 INFO L87 Difference]: Start difference. First operand 14444 states and 14928 transitions. Second operand has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:16,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:16,677 INFO L93 Difference]: Finished difference Result 32478 states and 33630 transitions. [2024-11-13 13:21:16,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:21:16,677 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 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 714 [2024-11-13 13:21:16,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:16,695 INFO L225 Difference]: With dead ends: 32478 [2024-11-13 13:21:16,696 INFO L226 Difference]: Without dead ends: 18335 [2024-11-13 13:21:16,705 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 719 GetRequests, 713 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-13 13:21:16,706 INFO L432 NwaCegarLoop]: 460 mSDtfsCounter, 56 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 492 SdHoareTripleChecker+Invalid, 853 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:16,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 492 Invalid, 853 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-13 13:21:16,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18335 states. [2024-11-13 13:21:16,858 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18335 to 17438. [2024-11-13 13:21:16,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17438 states, 17437 states have (on average 1.0310259792395482) internal successors, (17978), 17437 states have internal predecessors, (17978), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:16,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17438 states to 17438 states and 17978 transitions. [2024-11-13 13:21:16,884 INFO L78 Accepts]: Start accepts. Automaton has 17438 states and 17978 transitions. Word has length 714 [2024-11-13 13:21:16,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:16,884 INFO L471 AbstractCegarLoop]: Abstraction has 17438 states and 17978 transitions. [2024-11-13 13:21:16,884 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:16,884 INFO L276 IsEmpty]: Start isEmpty. Operand 17438 states and 17978 transitions. [2024-11-13 13:21:16,897 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 929 [2024-11-13 13:21:16,897 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:16,898 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:16,916 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-13 13:21:17,098 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-13 13:21:17,099 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:17,099 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:17,099 INFO L85 PathProgramCache]: Analyzing trace with hash -1909792102, now seen corresponding path program 1 times [2024-11-13 13:21:17,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:17,099 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839340489] [2024-11-13 13:21:17,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:17,099 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:17,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:17,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1268 backedges. 751 proven. 0 refuted. 0 times theorem prover too weak. 517 trivial. 0 not checked. [2024-11-13 13:21:17,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:17,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839340489] [2024-11-13 13:21:17,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1839340489] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:17,900 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:17,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:21:17,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [216651930] [2024-11-13 13:21:17,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:17,902 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:21:17,902 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:17,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:21:17,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:21:17,903 INFO L87 Difference]: Start difference. First operand 17438 states and 17978 transitions. Second operand has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:19,081 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:19,081 INFO L93 Difference]: Finished difference Result 39056 states and 40315 transitions. [2024-11-13 13:21:19,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:21:19,081 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 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 928 [2024-11-13 13:21:19,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:19,096 INFO L225 Difference]: With dead ends: 39056 [2024-11-13 13:21:19,096 INFO L226 Difference]: Without dead ends: 21620 [2024-11-13 13:21:19,104 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 13:21:19,105 INFO L432 NwaCegarLoop]: 477 mSDtfsCounter, 309 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 748 mSolverCounterSat, 75 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 309 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 823 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 75 IncrementalHoareTripleChecker+Valid, 748 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:19,105 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [309 Valid, 519 Invalid, 823 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [75 Valid, 748 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 13:21:19,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21620 states. [2024-11-13 13:21:19,281 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21620 to 18028. [2024-11-13 13:21:19,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18028 states, 18027 states have (on average 1.0285127863759915) internal successors, (18541), 18027 states have internal predecessors, (18541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:19,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18028 states to 18028 states and 18541 transitions. [2024-11-13 13:21:19,306 INFO L78 Accepts]: Start accepts. Automaton has 18028 states and 18541 transitions. Word has length 928 [2024-11-13 13:21:19,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:19,306 INFO L471 AbstractCegarLoop]: Abstraction has 18028 states and 18541 transitions. [2024-11-13 13:21:19,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 173.33333333333334) internal successors, (520), 3 states have internal predecessors, (520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:19,307 INFO L276 IsEmpty]: Start isEmpty. Operand 18028 states and 18541 transitions. [2024-11-13 13:21:19,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1091 [2024-11-13 13:21:19,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:19,318 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:19,318 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-13 13:21:19,318 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:19,319 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:19,319 INFO L85 PathProgramCache]: Analyzing trace with hash 1949359610, now seen corresponding path program 1 times [2024-11-13 13:21:19,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:19,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1387621957] [2024-11-13 13:21:19,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:19,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:19,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:21,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1932 backedges. 1524 proven. 26 refuted. 0 times theorem prover too weak. 382 trivial. 0 not checked. [2024-11-13 13:21:21,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:21,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1387621957] [2024-11-13 13:21:21,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1387621957] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:21,585 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [518455997] [2024-11-13 13:21:21,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:21,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:21,586 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:21,588 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:21,592 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-13 13:21:22,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:22,025 INFO L255 TraceCheckSpWp]: Trace formula consists of 1255 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-13 13:21:22,038 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:28,187 INFO L134 CoverageAnalysis]: Checked inductivity of 1932 backedges. 1029 proven. 0 refuted. 0 times theorem prover too weak. 903 trivial. 0 not checked. [2024-11-13 13:21:28,187 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:21:28,188 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [518455997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:28,188 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:21:28,188 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-13 13:21:28,189 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320794871] [2024-11-13 13:21:28,189 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:28,190 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:21:28,190 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:28,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:21:28,191 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:21:28,192 INFO L87 Difference]: Start difference. First operand 18028 states and 18541 transitions. Second operand has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:43,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:43,258 INFO L93 Difference]: Finished difference Result 42949 states and 44156 transitions. [2024-11-13 13:21:43,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:21:43,259 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 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 1090 [2024-11-13 13:21:43,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:43,278 INFO L225 Difference]: With dead ends: 42949 [2024-11-13 13:21:43,278 INFO L226 Difference]: Without dead ends: 25222 [2024-11-13 13:21:43,286 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1094 GetRequests, 1089 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:21:43,287 INFO L432 NwaCegarLoop]: 80 mSDtfsCounter, 396 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 1543 mSolverCounterSat, 138 mSolverCounterUnsat, 10 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 14.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 153 SdHoareTripleChecker+Invalid, 1691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 138 IncrementalHoareTripleChecker+Valid, 1543 IncrementalHoareTripleChecker+Invalid, 10 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:43,287 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 153 Invalid, 1691 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [138 Valid, 1543 Invalid, 10 Unknown, 0 Unchecked, 14.9s Time] [2024-11-13 13:21:43,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25222 states. [2024-11-13 13:21:43,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25222 to 19527. [2024-11-13 13:21:43,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19527 states, 19526 states have (on average 1.0290894192358906) internal successors, (20094), 19526 states have internal predecessors, (20094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:43,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19527 states to 19527 states and 20094 transitions. [2024-11-13 13:21:43,488 INFO L78 Accepts]: Start accepts. Automaton has 19527 states and 20094 transitions. Word has length 1090 [2024-11-13 13:21:43,488 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:43,489 INFO L471 AbstractCegarLoop]: Abstraction has 19527 states and 20094 transitions. [2024-11-13 13:21:43,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 143.0) internal successors, (572), 4 states have internal predecessors, (572), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:43,489 INFO L276 IsEmpty]: Start isEmpty. Operand 19527 states and 20094 transitions. [2024-11-13 13:21:43,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1189 [2024-11-13 13:21:43,508 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:43,508 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:43,523 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-13 13:21:43,709 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:43,709 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:43,709 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:43,709 INFO L85 PathProgramCache]: Analyzing trace with hash -1864825727, now seen corresponding path program 1 times [2024-11-13 13:21:43,710 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:43,710 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081333017] [2024-11-13 13:21:43,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:43,710 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:44,943 INFO L134 CoverageAnalysis]: Checked inductivity of 2236 backedges. 269 proven. 1108 refuted. 0 times theorem prover too weak. 859 trivial. 0 not checked. [2024-11-13 13:21:44,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:44,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081333017] [2024-11-13 13:21:44,943 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081333017] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:21:44,943 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1069502106] [2024-11-13 13:21:44,943 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:44,943 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:44,943 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:21:44,945 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:21:44,946 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-13 13:21:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:45,322 INFO L255 TraceCheckSpWp]: Trace formula consists of 1345 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:21:45,330 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:21:45,651 INFO L134 CoverageAnalysis]: Checked inductivity of 2236 backedges. 1451 proven. 0 refuted. 0 times theorem prover too weak. 785 trivial. 0 not checked. [2024-11-13 13:21:45,651 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:21:45,651 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1069502106] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:45,651 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:21:45,652 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-13 13:21:45,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931121855] [2024-11-13 13:21:45,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:45,653 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:21:45,653 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:45,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:21:45,654 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:21:45,654 INFO L87 Difference]: Start difference. First operand 19527 states and 20094 transitions. Second operand has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:46,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:46,834 INFO L93 Difference]: Finished difference Result 32428 states and 33298 transitions. [2024-11-13 13:21:46,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:21:46,834 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 0 states have call successors, (0), 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 1188 [2024-11-13 13:21:46,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:46,843 INFO L225 Difference]: With dead ends: 32428 [2024-11-13 13:21:46,843 INFO L226 Difference]: Without dead ends: 13202 [2024-11-13 13:21:46,851 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1187 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:21:46,851 INFO L432 NwaCegarLoop]: 359 mSDtfsCounter, 198 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 703 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 198 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 782 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:46,851 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [198 Valid, 370 Invalid, 782 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 703 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-13 13:21:46,859 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13202 states. [2024-11-13 13:21:46,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13202 to 11402. [2024-11-13 13:21:46,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11402 states, 11401 states have (on average 1.021401631435839) internal successors, (11645), 11401 states have internal predecessors, (11645), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:46,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11402 states to 11402 states and 11645 transitions. [2024-11-13 13:21:46,964 INFO L78 Accepts]: Start accepts. Automaton has 11402 states and 11645 transitions. Word has length 1188 [2024-11-13 13:21:46,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:46,964 INFO L471 AbstractCegarLoop]: Abstraction has 11402 states and 11645 transitions. [2024-11-13 13:21:46,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 216.0) internal successors, (648), 3 states have internal predecessors, (648), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:46,965 INFO L276 IsEmpty]: Start isEmpty. Operand 11402 states and 11645 transitions. [2024-11-13 13:21:46,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2024-11-13 13:21:46,982 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:21:46,982 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:46,997 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-13 13:21:47,182 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:21:47,183 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:21:47,183 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:21:47,183 INFO L85 PathProgramCache]: Analyzing trace with hash -702121555, now seen corresponding path program 1 times [2024-11-13 13:21:47,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:21:47,183 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004740395] [2024-11-13 13:21:47,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:21:47,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:21:47,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:21:48,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2348 backedges. 1150 proven. 0 refuted. 0 times theorem prover too weak. 1198 trivial. 0 not checked. [2024-11-13 13:21:48,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:21:48,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004740395] [2024-11-13 13:21:48,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2004740395] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:21:48,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:21:48,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-13 13:21:48,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185917714] [2024-11-13 13:21:48,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:21:48,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-13 13:21:48,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:21:48,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-13 13:21:48,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-13 13:21:48,368 INFO L87 Difference]: Start difference. First operand 11402 states and 11645 transitions. Second operand has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:50,747 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:21:50,747 INFO L93 Difference]: Finished difference Result 23098 states and 23609 transitions. [2024-11-13 13:21:50,747 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-13 13:21:50,748 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 0 states have call successors, (0), 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 1216 [2024-11-13 13:21:50,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:21:50,749 INFO L225 Difference]: With dead ends: 23098 [2024-11-13 13:21:50,749 INFO L226 Difference]: Without dead ends: 0 [2024-11-13 13:21:50,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-13 13:21:50,758 INFO L432 NwaCegarLoop]: 402 mSDtfsCounter, 428 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 2130 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 428 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 2162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 2130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:21:50,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [428 Valid, 534 Invalid, 2162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 2130 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-13 13:21:50,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-13 13:21:50,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-13 13:21:50,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:50,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-13 13:21:50,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1216 [2024-11-13 13:21:50,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:21:50,760 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-13 13:21:50,761 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 114.8) internal successors, (574), 5 states have internal predecessors, (574), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:21:50,761 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-13 13:21:50,761 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-13 13:21:50,765 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-13 13:21:50,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-13 13:21:50,770 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:21:50,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-13 13:21:55,631 INFO L173 ceAbstractionStarter]: Computing trace abstraction results [2024-11-13 13:21:55,652 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 13:21:55,654 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 13:21:55,654 WARN L976 BoogieBacktranslator]: Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression [2024-11-13 13:21:55,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.11 01:21:55 BoogieIcfgContainer [2024-11-13 13:21:55,664 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-13 13:21:55,664 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-13 13:21:55,665 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-13 13:21:55,665 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-13 13:21:55,666 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:19:56" (3/4) ... [2024-11-13 13:21:55,668 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-13 13:21:55,715 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-13 13:21:55,718 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-13 13:21:55,720 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-13 13:21:55,722 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-13 13:21:56,010 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/witness.graphml [2024-11-13 13:21:56,012 INFO L149 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/bin/uautomizer-verify-qhAvR1uOyd/witness.yml [2024-11-13 13:21:56,012 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-13 13:21:56,013 INFO L158 Benchmark]: Toolchain (without parser) took 126388.65ms. Allocated memory was 117.4MB in the beginning and 1.7GB in the end (delta: 1.6GB). Free memory was 87.5MB in the beginning and 1.1GB in the end (delta: -974.3MB). Peak memory consumption was 636.9MB. Max. memory is 16.1GB. [2024-11-13 13:21:56,013 INFO L158 Benchmark]: CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-13 13:21:56,014 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1145.93ms. Allocated memory is still 117.4MB. Free memory was 87.4MB in the beginning and 62.8MB in the end (delta: 24.6MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. [2024-11-13 13:21:56,014 INFO L158 Benchmark]: Boogie Procedure Inliner took 378.01ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 62.1MB in the end (delta: 622.3kB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. [2024-11-13 13:21:56,014 INFO L158 Benchmark]: Boogie Preprocessor took 509.91ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 62.1MB in the beginning and 160.4MB in the end (delta: -98.2MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. [2024-11-13 13:21:56,014 INFO L158 Benchmark]: RCFGBuilder took 4390.74ms. Allocated memory was 226.5MB in the beginning and 385.9MB in the end (delta: 159.4MB). Free memory was 160.4MB in the beginning and 192.1MB in the end (delta: -31.7MB). Peak memory consumption was 130.5MB. Max. memory is 16.1GB. [2024-11-13 13:21:56,015 INFO L158 Benchmark]: TraceAbstraction took 119603.26ms. Allocated memory was 385.9MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 192.1MB in the beginning and 1.1GB in the end (delta: -890.7MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. [2024-11-13 13:21:56,015 INFO L158 Benchmark]: Witness Printer took 347.56ms. Allocated memory is still 1.7GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-13 13:21:56,020 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.43ms. Allocated memory is still 117.4MB. Free memory is still 75.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 1145.93ms. Allocated memory is still 117.4MB. Free memory was 87.4MB in the beginning and 62.8MB in the end (delta: 24.6MB). Peak memory consumption was 60.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 378.01ms. Allocated memory is still 117.4MB. Free memory was 62.8MB in the beginning and 62.1MB in the end (delta: 622.3kB). Peak memory consumption was 58.5MB. Max. memory is 16.1GB. * Boogie Preprocessor took 509.91ms. Allocated memory was 117.4MB in the beginning and 226.5MB in the end (delta: 109.1MB). Free memory was 62.1MB in the beginning and 160.4MB in the end (delta: -98.2MB). Peak memory consumption was 36.8MB. Max. memory is 16.1GB. * RCFGBuilder took 4390.74ms. Allocated memory was 226.5MB in the beginning and 385.9MB in the end (delta: 159.4MB). Free memory was 160.4MB in the beginning and 192.1MB in the end (delta: -31.7MB). Peak memory consumption was 130.5MB. Max. memory is 16.1GB. * TraceAbstraction took 119603.26ms. Allocated memory was 385.9MB in the beginning and 1.7GB in the end (delta: 1.4GB). Free memory was 192.1MB in the beginning and 1.1GB in the end (delta: -890.7MB). Peak memory consumption was 1.0GB. Max. memory is 16.1GB. * Witness Printer took 347.56ms. Allocated memory is still 1.7GB. Free memory was 1.1GB in the beginning and 1.1GB in the end (delta: 20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Expression type not yet supported in backtranslation: QuantifierExpression * 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: 185]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 424 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 114.6s, OverallIterations: 21, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.3s, AutomataDifference: 74.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 10 mSolverCounterUnknown, 8109 SdHoareTripleChecker+Valid, 71.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 8109 mSDsluCounter, 8672 SdHoareTripleChecker+Invalid, 63.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1126 mSDsCounter, 3852 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 27928 IncrementalHoareTripleChecker+Invalid, 31790 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 3852 mSolverCounterUnsat, 7546 mSDtfsCounter, 27928 mSolverCounterSat, 0.3s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 5572 GetRequests, 5516 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19527occurred in iteration=19, InterpolantAutomatonStates: 78, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 3.3s AutomataMinimizationTime, 21 MinimizatonAttempts, 23422 StatesRemovedByMinimization, 17 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.8s SsaConstructionTime, 2.8s SatisfiabilityAnalysisTime, 29.0s InterpolantComputationTime, 16323 NumberOfCodeBlocks, 16323 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 16906 ConstructedInterpolants, 296 QuantifiedInterpolants, 68843 SizeOfPredicates, 6 NumberOfNonLiveVariables, 5743 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 28 InterpolantComputations, 20 PerfectInterpolantSequences, 20298/22434 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 1776]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((0 <= ((long long) 97 + a0)) && (2 == a2)) && (((long long) 89 + a4) <= 0)) && (((long long) a0 + 61) <= 0)) || ((((long long) a0 + 99) <= 0) && (a2 == 4))) || (((((long long) 89 + a4) <= 0) && (a29 <= 42)) && (a2 == 4))) || (((((long long) 89 + a4) <= 0) && (a2 == 1)) && (((long long) a0 + 61) <= 0))) || ((((0 <= ((long long) a29 + 15)) && (((long long) 89 + a4) <= 0)) && (a29 <= 42)) && (5 <= a2))) || (((((long long) 89 + a4) <= 0) && (5 <= a2)) && (((long long) a0 + 61) <= 0))) || ((((2 == a2) && (0 <= ((long long) a4 + 85))) && (44 <= a29)) && (((long long) 98 + a0) <= 0))) || (((((long long) a0 + 99) <= 0) && (a2 == 1)) && (a29 <= 42))) || ((((2 == a2) && (((long long) a0 + 99) <= 0)) && (((long long) 89 + a4) <= 0)) && (0 <= ((long long) 146 + a0)))) || ((((long long) a0 + 99) <= 0) && (5 <= a2))) || (((((a2 == 1) && (((long long) a0 + 61) <= 0)) || ((0 <= ((long long) a4 + 85)) && (a2 == 1))) && (0 <= ((long long) 97 + a0))) && (a29 <= 42))) || (((2 == a2) && (((long long) 89 + a4) <= 0)) && (a29 <= 42))) || ((((44 <= a29) && (((long long) 89 + a4) <= 0)) && (0 <= ((long long) a0 + 60))) && (3 == a2))) || (((44 <= a29) && (((long long) 89 + a4) <= 0)) && (5 <= a2))) || (((44 <= a29) && (((long long) 98 + a0) <= 0)) && (5 <= a2))) || (((((long long) 89 + a4) <= 0) && (a2 == 4)) && (((long long) a0 + 61) <= 0))) || (((a2 == 1) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 144) <= 0))) || ((((2 == a2) && (44 <= a29)) && (((long long) 89 + a4) <= 0)) && (0 <= ((long long) a0 + 60)))) || (((((a2 == 1) && (((long long) a0 + 61) <= 0)) || ((0 <= ((long long) a4 + 85)) && (a2 == 1))) && (0 <= ((long long) a29 + 15))) && (a29 <= 42))) || (((2 == a2) && (0 <= ((long long) a4 + 85))) && (((long long) a0 + 99) <= 0))) || ((((((long long) 89 + a4) <= 0) && (0 <= ((long long) a0 + 60))) && (a29 <= 42)) && (3 == a2))) || ((((0 <= ((long long) a4 + 85)) && (44 <= a29)) && (((long long) 98 + a0) <= 0)) && (a2 == 4))) || ((((((long long) 89 + a4) <= 0) && (a2 == 1)) && (0 <= ((long long) 44 + a0))) && (((long long) a29 + 127) == 0))) || ((((((long long) 98 + a0) <= 0) && (0 <= ((long long) 146 + a0))) && (a29 <= 42)) && (5 <= a2))) || (((((long long) 98 + a0) <= 0) && (0 <= ((long long) 146 + a0))) && (a2 == 1))) || ((((long long) a0 + 99) <= 0) && (3 == a2))) || (((((long long) 89 + a4) <= 0) && (3 == a2)) && (((long long) a0 + 61) <= 0))) || (((44 <= a29) && (((long long) a0 + 99) <= 0)) && (a2 == 1))) || (((((2 == a2) && (0 <= ((long long) a4 + 85))) && (0 <= ((long long) a29 + 15))) && (((long long) 98 + a0) <= 0)) && (a29 <= 42))) RESULT: Ultimate proved your program to be correct! [2024-11-13 13:21:56,072 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_e12c8982-e983-404d-8cd6-0cc575d31c31/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