./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem13_label30.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_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/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_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/config/AutomizerReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem13_label30.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/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_56796fc4-6248-4995-8240-d591ea3dbb18/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 e9187c2a2102d3e400be280528e6f5828841c3bd8908371ec9602651e1a68303 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-826ab2b [2024-11-13 12:59:50,331 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-13 12:59:50,434 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-13 12:59:50,442 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-13 12:59:50,448 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-13 12:59:50,491 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-13 12:59:50,495 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-13 12:59:50,495 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-13 12:59:50,496 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-13 12:59:50,496 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-13 12:59:50,496 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-13 12:59:50,496 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-13 12:59:50,497 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-13 12:59:50,497 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-13 12:59:50,498 INFO L153 SettingsManager]: * Use SBE=true [2024-11-13 12:59:50,500 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-13 12:59:50,500 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-13 12:59:50,500 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-13 12:59:50,500 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-13 12:59:50,500 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-13 12:59:50,501 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-13 12:59:50,501 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-13 12:59:50,501 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-13 12:59:50,501 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-13 12:59:50,501 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-13 12:59:50,501 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-13 12:59:50,501 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-13 12:59:50,502 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-13 12:59:50,502 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-13 12:59:50,502 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-13 12:59:50,502 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-13 12:59:50,502 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-13 12:59:50,502 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:59:50,502 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-13 12:59:50,502 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-13 12:59:50,502 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-13 12:59:50,503 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-13 12:59:50,503 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-13 12:59:50,503 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-13 12:59:50,503 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-13 12:59:50,503 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-13 12:59:50,503 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-13 12:59:50,503 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_56796fc4-6248-4995-8240-d591ea3dbb18/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 -> e9187c2a2102d3e400be280528e6f5828841c3bd8908371ec9602651e1a68303 [2024-11-13 12:59:50,898 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-13 12:59:50,914 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-13 12:59:50,917 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-13 12:59:50,918 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-13 12:59:50,919 INFO L274 PluginConnector]: CDTParser initialized [2024-11-13 12:59:50,920 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/../../sv-benchmarks/c/eca-rers2012/Problem13_label30.c Unable to find full path for "g++" [2024-11-13 12:59:53,095 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-13 12:59:53,776 INFO L384 CDTParser]: Found 1 translation units. [2024-11-13 12:59:53,781 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/sv-benchmarks/c/eca-rers2012/Problem13_label30.c [2024-11-13 12:59:53,832 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/data/88d489063/f5cbf66ae835405bb817f6a58c664743/FLAGdfc2aee60 [2024-11-13 12:59:53,861 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/data/88d489063/f5cbf66ae835405bb817f6a58c664743 [2024-11-13 12:59:53,864 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-13 12:59:53,866 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-13 12:59:53,869 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-13 12:59:53,869 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-13 12:59:53,875 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-13 12:59:53,876 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:59:53" (1/1) ... [2024-11-13 12:59:53,879 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2640164a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:53, skipping insertion in model container [2024-11-13 12:59:53,879 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.11 12:59:53" (1/1) ... [2024-11-13 12:59:54,066 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-13 12:59:54,352 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_56796fc4-6248-4995-8240-d591ea3dbb18/sv-benchmarks/c/eca-rers2012/Problem13_label30.c[2990,3003] [2024-11-13 12:59:55,508 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:59:55,526 INFO L200 MainTranslator]: Completed pre-run [2024-11-13 12:59:55,559 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_56796fc4-6248-4995-8240-d591ea3dbb18/sv-benchmarks/c/eca-rers2012/Problem13_label30.c[2990,3003] [2024-11-13 12:59:56,235 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-13 12:59:56,267 INFO L204 MainTranslator]: Completed translation [2024-11-13 12:59:56,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56 WrapperNode [2024-11-13 12:59:56,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-13 12:59:56,272 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-13 12:59:56,272 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-13 12:59:56,272 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-13 12:59:56,280 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:56,370 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:57,136 INFO L138 Inliner]: procedures = 17, calls = 11, calls flagged for inlining = 6, calls inlined = 6, statements flattened = 5586 [2024-11-13 12:59:57,137 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-13 12:59:57,139 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-13 12:59:57,139 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-13 12:59:57,139 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-13 12:59:57,157 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:57,158 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:57,469 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:57,836 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-13 12:59:57,838 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:57,838 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:58,066 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:58,119 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:58,170 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:58,198 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:58,280 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-13 12:59:58,281 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-13 12:59:58,282 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-13 12:59:58,282 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-13 12:59:58,287 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (1/1) ... [2024-11-13 12:59:58,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-13 12:59:58,316 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 12:59:58,332 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-13 12:59:58,336 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-13 12:59:58,365 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-13 12:59:58,366 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-13 12:59:58,366 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-13 12:59:58,366 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-13 12:59:58,473 INFO L238 CfgBuilder]: Building ICFG [2024-11-13 12:59:58,476 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-13 13:00:07,945 INFO L? ?]: Removed 738 outVars from TransFormulas that were not future-live. [2024-11-13 13:00:07,946 INFO L287 CfgBuilder]: Performing block encoding [2024-11-13 13:00:07,977 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-13 13:00:07,977 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-13 13:00:07,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:07 BoogieIcfgContainer [2024-11-13 13:00:07,978 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-13 13:00:07,981 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-13 13:00:07,981 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-13 13:00:07,990 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-13 13:00:07,990 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.11 12:59:53" (1/3) ... [2024-11-13 13:00:07,991 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299ad8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:07, skipping insertion in model container [2024-11-13 13:00:07,994 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.11 12:59:56" (2/3) ... [2024-11-13 13:00:07,995 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@299ad8d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.11 01:00:07, skipping insertion in model container [2024-11-13 13:00:07,995 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.11 01:00:07" (3/3) ... [2024-11-13 13:00:07,996 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label30.c [2024-11-13 13:00:08,013 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-13 13:00:08,016 INFO L154 ceAbstractionStarter]: Applying trace abstraction to ICFG Problem13_label30.c that has 1 procedures, 1098 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-13 13:00:08,116 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-13 13:00:08,131 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;@7e14fcbd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-13 13:00:08,132 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-13 13:00:08,144 INFO L276 IsEmpty]: Start isEmpty. Operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:08,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-13 13:00:08,150 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:08,152 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:08,153 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:08,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:08,159 INFO L85 PathProgramCache]: Analyzing trace with hash -132812224, now seen corresponding path program 1 times [2024-11-13 13:00:08,168 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:08,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850402391] [2024-11-13 13:00:08,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:08,171 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:08,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:08,464 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 13:00:08,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:08,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850402391] [2024-11-13 13:00:08,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850402391] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:08,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:08,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:00:08,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853049988] [2024-11-13 13:00:08,468 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:08,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:08,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:08,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:08,498 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:08,505 INFO L87 Difference]: Start difference. First operand has 1098 states, 1096 states have (on average 1.8275547445255473) internal successors, (2003), 1097 states have internal predecessors, (2003), 0 states have call successors, (0), 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 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:15,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:15,356 INFO L93 Difference]: Finished difference Result 3082 states and 5689 transitions. [2024-11-13 13:00:15,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:15,358 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 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 19 [2024-11-13 13:00:15,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:15,391 INFO L225 Difference]: With dead ends: 3082 [2024-11-13 13:00:15,392 INFO L226 Difference]: Without dead ends: 1899 [2024-11-13 13:00:15,404 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 13:00:15,407 INFO L432 NwaCegarLoop]: 469 mSDtfsCounter, 1020 mSDsluCounter, 171 mSDsCounter, 0 mSdLazyCounter, 2955 mSolverCounterSat, 599 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1020 SdHoareTripleChecker+Valid, 640 SdHoareTripleChecker+Invalid, 3554 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 599 IncrementalHoareTripleChecker+Valid, 2955 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:15,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1020 Valid, 640 Invalid, 3554 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [599 Valid, 2955 Invalid, 0 Unknown, 0 Unchecked, 6.5s Time] [2024-11-13 13:00:15,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1899 states. [2024-11-13 13:00:15,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1899 to 1894. [2024-11-13 13:00:15,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1894 states, 1893 states have (on average 1.7374537770734284) internal successors, (3289), 1893 states have internal predecessors, (3289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:15,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1894 states to 1894 states and 3289 transitions. [2024-11-13 13:00:15,585 INFO L78 Accepts]: Start accepts. Automaton has 1894 states and 3289 transitions. Word has length 19 [2024-11-13 13:00:15,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:15,585 INFO L471 AbstractCegarLoop]: Abstraction has 1894 states and 3289 transitions. [2024-11-13 13:00:15,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.333333333333333) internal successors, (19), 2 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:15,585 INFO L276 IsEmpty]: Start isEmpty. Operand 1894 states and 3289 transitions. [2024-11-13 13:00:15,589 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-11-13 13:00:15,589 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:15,591 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:00:15,591 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-13 13:00:15,591 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:15,592 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:15,592 INFO L85 PathProgramCache]: Analyzing trace with hash -271659718, now seen corresponding path program 1 times [2024-11-13 13:00:15,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:15,592 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3247928] [2024-11-13 13:00:15,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:15,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:15,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:16,024 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:16,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:16,025 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3247928] [2024-11-13 13:00:16,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3247928] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:16,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:16,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:00:16,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509406147] [2024-11-13 13:00:16,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:16,027 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:16,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:16,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:16,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:16,028 INFO L87 Difference]: Start difference. First operand 1894 states and 3289 transitions. Second operand has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:22,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:22,295 INFO L93 Difference]: Finished difference Result 5384 states and 9441 transitions. [2024-11-13 13:00:22,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:22,295 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 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 84 [2024-11-13 13:00:22,296 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:22,312 INFO L225 Difference]: With dead ends: 5384 [2024-11-13 13:00:22,312 INFO L226 Difference]: Without dead ends: 3492 [2024-11-13 13:00:22,315 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 13:00:22,316 INFO L432 NwaCegarLoop]: 860 mSDtfsCounter, 922 mSDsluCounter, 153 mSDsCounter, 0 mSdLazyCounter, 2310 mSolverCounterSat, 879 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 922 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 3189 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 879 IncrementalHoareTripleChecker+Valid, 2310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:22,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [922 Valid, 1013 Invalid, 3189 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [879 Valid, 2310 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-13 13:00:22,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3492 states. [2024-11-13 13:00:22,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3492 to 3491. [2024-11-13 13:00:22,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3491 states, 3490 states have (on average 1.5383954154727795) internal successors, (5369), 3490 states have internal predecessors, (5369), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:22,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3491 states to 3491 states and 5369 transitions. [2024-11-13 13:00:22,430 INFO L78 Accepts]: Start accepts. Automaton has 3491 states and 5369 transitions. Word has length 84 [2024-11-13 13:00:22,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:22,431 INFO L471 AbstractCegarLoop]: Abstraction has 3491 states and 5369 transitions. [2024-11-13 13:00:22,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.0) internal successors, (84), 2 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:22,432 INFO L276 IsEmpty]: Start isEmpty. Operand 3491 states and 5369 transitions. [2024-11-13 13:00:22,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-13 13:00:22,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:22,436 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:22,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-13 13:00:22,436 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:22,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:22,437 INFO L85 PathProgramCache]: Analyzing trace with hash 698708607, now seen corresponding path program 1 times [2024-11-13 13:00:22,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:22,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [161301810] [2024-11-13 13:00:22,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:22,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:22,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:22,723 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:22,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:22,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [161301810] [2024-11-13 13:00:22,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [161301810] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:22,725 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:22,725 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:00:22,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [405397524] [2024-11-13 13:00:22,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:22,726 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:22,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:22,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:22,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:22,728 INFO L87 Difference]: Start difference. First operand 3491 states and 5369 transitions. Second operand has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:27,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:27,441 INFO L93 Difference]: Finished difference Result 10169 states and 15700 transitions. [2024-11-13 13:00:27,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:27,442 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 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 86 [2024-11-13 13:00:27,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:27,468 INFO L225 Difference]: With dead ends: 10169 [2024-11-13 13:00:27,468 INFO L226 Difference]: Without dead ends: 6680 [2024-11-13 13:00:27,473 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 13:00:27,474 INFO L432 NwaCegarLoop]: 827 mSDtfsCounter, 977 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 2561 mSolverCounterSat, 724 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 977 SdHoareTripleChecker+Valid, 960 SdHoareTripleChecker+Invalid, 3285 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 724 IncrementalHoareTripleChecker+Valid, 2561 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:27,474 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [977 Valid, 960 Invalid, 3285 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [724 Valid, 2561 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-11-13 13:00:27,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6680 states. [2024-11-13 13:00:27,599 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6680 to 6669. [2024-11-13 13:00:27,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6669 states, 6668 states have (on average 1.375224955008998) internal successors, (9170), 6668 states have internal predecessors, (9170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:27,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6669 states to 6669 states and 9170 transitions. [2024-11-13 13:00:27,708 INFO L78 Accepts]: Start accepts. Automaton has 6669 states and 9170 transitions. Word has length 86 [2024-11-13 13:00:27,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:27,711 INFO L471 AbstractCegarLoop]: Abstraction has 6669 states and 9170 transitions. [2024-11-13 13:00:27,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 28.666666666666668) internal successors, (86), 2 states have internal predecessors, (86), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:27,711 INFO L276 IsEmpty]: Start isEmpty. Operand 6669 states and 9170 transitions. [2024-11-13 13:00:27,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 131 [2024-11-13 13:00:27,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:27,716 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:27,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-13 13:00:27,716 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:27,718 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:27,720 INFO L85 PathProgramCache]: Analyzing trace with hash -522214323, now seen corresponding path program 1 times [2024-11-13 13:00:27,721 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:27,721 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718391470] [2024-11-13 13:00:27,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:27,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:28,410 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:28,411 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:28,411 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718391470] [2024-11-13 13:00:28,411 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718391470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:28,411 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:28,411 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:00:28,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604956131] [2024-11-13 13:00:28,411 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:28,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:28,412 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:28,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:28,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:28,414 INFO L87 Difference]: Start difference. First operand 6669 states and 9170 transitions. Second operand has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:32,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:32,704 INFO L93 Difference]: Finished difference Result 14123 states and 19185 transitions. [2024-11-13 13:00:32,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:32,705 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 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 130 [2024-11-13 13:00:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:32,756 INFO L225 Difference]: With dead ends: 14123 [2024-11-13 13:00:32,756 INFO L226 Difference]: Without dead ends: 7456 [2024-11-13 13:00:32,762 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 13:00:32,765 INFO L432 NwaCegarLoop]: 1086 mSDtfsCounter, 678 mSDsluCounter, 129 mSDsCounter, 0 mSdLazyCounter, 2523 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 678 SdHoareTripleChecker+Valid, 1215 SdHoareTripleChecker+Invalid, 2577 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2523 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:32,766 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [678 Valid, 1215 Invalid, 2577 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 2523 Invalid, 0 Unknown, 0 Unchecked, 4.1s Time] [2024-11-13 13:00:32,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7456 states. [2024-11-13 13:00:32,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7456 to 7456. [2024-11-13 13:00:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7456 states, 7455 states have (on average 1.3362843729040912) internal successors, (9962), 7455 states have internal predecessors, (9962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:32,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7456 states to 7456 states and 9962 transitions. [2024-11-13 13:00:32,926 INFO L78 Accepts]: Start accepts. Automaton has 7456 states and 9962 transitions. Word has length 130 [2024-11-13 13:00:32,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:32,927 INFO L471 AbstractCegarLoop]: Abstraction has 7456 states and 9962 transitions. [2024-11-13 13:00:32,927 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.333333333333336) internal successors, (130), 2 states have internal predecessors, (130), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:32,928 INFO L276 IsEmpty]: Start isEmpty. Operand 7456 states and 9962 transitions. [2024-11-13 13:00:32,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2024-11-13 13:00:32,930 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:32,930 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-11-13 13:00:32,930 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-13 13:00:32,930 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:32,931 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:32,931 INFO L85 PathProgramCache]: Analyzing trace with hash 1336568855, now seen corresponding path program 1 times [2024-11-13 13:00:32,931 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:32,931 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709949244] [2024-11-13 13:00:32,931 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:32,931 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:32,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:33,811 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:33,814 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:33,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709949244] [2024-11-13 13:00:33,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1709949244] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:00:33,814 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [191009105] [2024-11-13 13:00:33,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:33,815 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:00:33,815 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:00:33,818 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:00:33,821 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-13 13:00:33,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:33,945 INFO L255 TraceCheckSpWp]: Trace formula consists of 227 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:00:33,953 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:00:34,257 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-13 13:00:34,257 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:00:34,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [191009105] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:34,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:00:34,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2024-11-13 13:00:34,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800331380] [2024-11-13 13:00:34,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:34,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:34,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:34,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:34,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:34,259 INFO L87 Difference]: Start difference. First operand 7456 states and 9962 transitions. Second operand has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:38,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:38,746 INFO L93 Difference]: Finished difference Result 19656 states and 26991 transitions. [2024-11-13 13:00:38,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:38,747 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 144 [2024-11-13 13:00:38,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:38,778 INFO L225 Difference]: With dead ends: 19656 [2024-11-13 13:00:38,779 INFO L226 Difference]: Without dead ends: 12989 [2024-11-13 13:00:38,786 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 148 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:00:38,787 INFO L432 NwaCegarLoop]: 1049 mSDtfsCounter, 743 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 2513 mSolverCounterSat, 780 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 743 SdHoareTripleChecker+Valid, 1200 SdHoareTripleChecker+Invalid, 3293 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 780 IncrementalHoareTripleChecker+Valid, 2513 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:38,787 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [743 Valid, 1200 Invalid, 3293 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [780 Valid, 2513 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 13:00:38,802 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12989 states. [2024-11-13 13:00:39,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12989 to 12972. [2024-11-13 13:00:39,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12972 states, 12971 states have (on average 1.235910878112713) internal successors, (16031), 12971 states have internal predecessors, (16031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:39,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12972 states to 12972 states and 16031 transitions. [2024-11-13 13:00:39,079 INFO L78 Accepts]: Start accepts. Automaton has 12972 states and 16031 transitions. Word has length 144 [2024-11-13 13:00:39,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:39,080 INFO L471 AbstractCegarLoop]: Abstraction has 12972 states and 16031 transitions. [2024-11-13 13:00:39,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 43.0) internal successors, (129), 2 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:39,080 INFO L276 IsEmpty]: Start isEmpty. Operand 12972 states and 16031 transitions. [2024-11-13 13:00:39,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2024-11-13 13:00:39,084 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:39,084 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 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 13:00:39,105 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-13 13:00:39,285 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:00:39,285 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:39,286 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:39,286 INFO L85 PathProgramCache]: Analyzing trace with hash 71099321, now seen corresponding path program 1 times [2024-11-13 13:00:39,286 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:39,286 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163928944] [2024-11-13 13:00:39,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:39,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:39,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:39,861 INFO L134 CoverageAnalysis]: Checked inductivity of 128 backedges. 128 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:39,862 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:39,862 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163928944] [2024-11-13 13:00:39,862 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163928944] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:39,862 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:39,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:00:39,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484112411] [2024-11-13 13:00:39,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:39,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:00:39,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:39,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:00:39,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:00:39,867 INFO L87 Difference]: Start difference. First operand 12972 states and 16031 transitions. Second operand has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:46,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:46,699 INFO L93 Difference]: Finished difference Result 25172 states and 31298 transitions. [2024-11-13 13:00:46,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:00:46,702 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 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 231 [2024-11-13 13:00:46,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:46,739 INFO L225 Difference]: With dead ends: 25172 [2024-11-13 13:00:46,739 INFO L226 Difference]: Without dead ends: 12989 [2024-11-13 13:00:46,749 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 13:00:46,750 INFO L432 NwaCegarLoop]: 999 mSDtfsCounter, 1596 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 4404 mSolverCounterSat, 671 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1596 SdHoareTripleChecker+Valid, 1150 SdHoareTripleChecker+Invalid, 5075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 671 IncrementalHoareTripleChecker+Valid, 4404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:46,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1596 Valid, 1150 Invalid, 5075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [671 Valid, 4404 Invalid, 0 Unknown, 0 Unchecked, 6.6s Time] [2024-11-13 13:00:46,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12989 states. [2024-11-13 13:00:46,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12989 to 12973. [2024-11-13 13:00:46,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12973 states, 12972 states have (on average 1.2284921369102684) internal successors, (15936), 12972 states have internal predecessors, (15936), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:46,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12973 states to 12973 states and 15936 transitions. [2024-11-13 13:00:46,995 INFO L78 Accepts]: Start accepts. Automaton has 12973 states and 15936 transitions. Word has length 231 [2024-11-13 13:00:46,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:46,996 INFO L471 AbstractCegarLoop]: Abstraction has 12973 states and 15936 transitions. [2024-11-13 13:00:46,997 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 57.75) internal successors, (231), 3 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:46,997 INFO L276 IsEmpty]: Start isEmpty. Operand 12973 states and 15936 transitions. [2024-11-13 13:00:47,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 234 [2024-11-13 13:00:47,001 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:47,001 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:00:47,001 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-13 13:00:47,001 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:47,002 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:47,002 INFO L85 PathProgramCache]: Analyzing trace with hash -195052545, now seen corresponding path program 1 times [2024-11-13 13:00:47,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:47,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854562771] [2024-11-13 13:00:47,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:47,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:47,201 INFO L134 CoverageAnalysis]: Checked inductivity of 121 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:00:47,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:47,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854562771] [2024-11-13 13:00:47,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854562771] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:47,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:47,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:00:47,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453424791] [2024-11-13 13:00:47,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:47,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:00:47,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:47,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:00:47,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:00:47,204 INFO L87 Difference]: Start difference. First operand 12973 states and 15936 transitions. Second operand has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:51,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:00:51,736 INFO L93 Difference]: Finished difference Result 36168 states and 44889 transitions. [2024-11-13 13:00:51,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:00:51,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 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 233 [2024-11-13 13:00:51,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:00:51,767 INFO L225 Difference]: With dead ends: 36168 [2024-11-13 13:00:51,767 INFO L226 Difference]: Without dead ends: 22399 [2024-11-13 13:00:51,778 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 13:00:51,779 INFO L432 NwaCegarLoop]: 1851 mSDtfsCounter, 839 mSDsluCounter, 138 mSDsCounter, 0 mSdLazyCounter, 2479 mSolverCounterSat, 807 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 839 SdHoareTripleChecker+Valid, 1989 SdHoareTripleChecker+Invalid, 3286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 807 IncrementalHoareTripleChecker+Valid, 2479 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:00:51,780 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [839 Valid, 1989 Invalid, 3286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [807 Valid, 2479 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 13:00:51,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22399 states. [2024-11-13 13:00:52,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22399 to 22394. [2024-11-13 13:00:52,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22394 states, 22393 states have (on average 1.1836288125753585) internal successors, (26505), 22393 states have internal predecessors, (26505), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:52,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22394 states to 22394 states and 26505 transitions. [2024-11-13 13:00:52,177 INFO L78 Accepts]: Start accepts. Automaton has 22394 states and 26505 transitions. Word has length 233 [2024-11-13 13:00:52,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:00:52,177 INFO L471 AbstractCegarLoop]: Abstraction has 22394 states and 26505 transitions. [2024-11-13 13:00:52,178 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 77.66666666666667) internal successors, (233), 3 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:00:52,178 INFO L276 IsEmpty]: Start isEmpty. Operand 22394 states and 26505 transitions. [2024-11-13 13:00:52,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-11-13 13:00:52,190 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:00:52,190 INFO L215 NwaCegarLoop]: trace histogram [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, 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] [2024-11-13 13:00:52,190 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-13 13:00:52,190 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:00:52,192 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:00:52,192 INFO L85 PathProgramCache]: Analyzing trace with hash 1694535343, now seen corresponding path program 1 times [2024-11-13 13:00:52,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:00:52,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427728633] [2024-11-13 13:00:52,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:00:52,192 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:00:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:00:52,729 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 238 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-13 13:00:52,729 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:00:52,729 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427728633] [2024-11-13 13:00:52,729 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1427728633] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:00:52,729 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:00:52,729 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:00:52,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300378840] [2024-11-13 13:00:52,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:00:52,730 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-13 13:00:52,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:00:52,730 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-13 13:00:52,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-13 13:00:52,731 INFO L87 Difference]: Start difference. First operand 22394 states and 26505 transitions. Second operand has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:02,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:02,338 INFO L93 Difference]: Finished difference Result 80424 states and 95732 transitions. [2024-11-13 13:01:02,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-13 13:01:02,339 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 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 255 [2024-11-13 13:01:02,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:02,418 INFO L225 Difference]: With dead ends: 80424 [2024-11-13 13:01:02,418 INFO L226 Difference]: Without dead ends: 58819 [2024-11-13 13:01:02,436 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 13:01:02,437 INFO L432 NwaCegarLoop]: 985 mSDtfsCounter, 1716 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 7063 mSolverCounterSat, 904 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1716 SdHoareTripleChecker+Valid, 1236 SdHoareTripleChecker+Invalid, 7967 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 904 IncrementalHoareTripleChecker+Valid, 7063 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.2s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:02,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1716 Valid, 1236 Invalid, 7967 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [904 Valid, 7063 Invalid, 0 Unknown, 0 Unchecked, 9.2s Time] [2024-11-13 13:01:02,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58819 states. [2024-11-13 13:01:03,182 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58819 to 57900. [2024-11-13 13:01:03,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 57900 states, 57899 states have (on average 1.1622998670097928) internal successors, (67296), 57899 states have internal predecessors, (67296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:03,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 57900 states to 57900 states and 67296 transitions. [2024-11-13 13:01:03,402 INFO L78 Accepts]: Start accepts. Automaton has 57900 states and 67296 transitions. Word has length 255 [2024-11-13 13:01:03,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:03,404 INFO L471 AbstractCegarLoop]: Abstraction has 57900 states and 67296 transitions. [2024-11-13 13:01:03,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 59.75) internal successors, (239), 3 states have internal predecessors, (239), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:03,404 INFO L276 IsEmpty]: Start isEmpty. Operand 57900 states and 67296 transitions. [2024-11-13 13:01:03,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2024-11-13 13:01:03,408 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:03,409 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:03,409 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-13 13:01:03,409 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:03,410 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:03,410 INFO L85 PathProgramCache]: Analyzing trace with hash -2103855790, now seen corresponding path program 1 times [2024-11-13 13:01:03,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:03,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [428386600] [2024-11-13 13:01:03,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:03,410 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:03,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:04,872 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 36 proven. 110 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-13 13:01:04,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:04,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [428386600] [2024-11-13 13:01:04,875 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [428386600] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:01:04,875 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923203003] [2024-11-13 13:01:04,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:04,876 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:01:04,876 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:01:04,879 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:01:04,881 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-13 13:01:05,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:05,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 366 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:01:05,041 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:01:05,112 INFO L134 CoverageAnalysis]: Checked inductivity of 146 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-13 13:01:05,112 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:01:05,112 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923203003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:05,112 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:01:05,113 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-13 13:01:05,113 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [351205753] [2024-11-13 13:01:05,113 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:05,113 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:01:05,113 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:05,114 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:01:05,114 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:05,114 INFO L87 Difference]: Start difference. First operand 57900 states and 67296 transitions. Second operand has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:10,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:10,750 INFO L93 Difference]: Finished difference Result 139414 states and 164665 transitions. [2024-11-13 13:01:10,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:01:10,751 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 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 260 [2024-11-13 13:01:10,752 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:10,901 INFO L225 Difference]: With dead ends: 139414 [2024-11-13 13:01:10,901 INFO L226 Difference]: Without dead ends: 82303 [2024-11-13 13:01:10,945 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 264 GetRequests, 259 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-13 13:01:10,946 INFO L432 NwaCegarLoop]: 833 mSDtfsCounter, 907 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 2370 mSolverCounterSat, 867 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 907 SdHoareTripleChecker+Valid, 948 SdHoareTripleChecker+Invalid, 3237 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 867 IncrementalHoareTripleChecker+Valid, 2370 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:10,947 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [907 Valid, 948 Invalid, 3237 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [867 Valid, 2370 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2024-11-13 13:01:11,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82303 states. [2024-11-13 13:01:12,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82303 to 82294. [2024-11-13 13:01:12,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82294 states, 82293 states have (on average 1.1454801744984384) internal successors, (94265), 82293 states have internal predecessors, (94265), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:12,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82294 states to 82294 states and 94265 transitions. [2024-11-13 13:01:12,482 INFO L78 Accepts]: Start accepts. Automaton has 82294 states and 94265 transitions. Word has length 260 [2024-11-13 13:01:12,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:12,482 INFO L471 AbstractCegarLoop]: Abstraction has 82294 states and 94265 transitions. [2024-11-13 13:01:12,482 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 49.333333333333336) internal successors, (148), 3 states have internal predecessors, (148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:12,483 INFO L276 IsEmpty]: Start isEmpty. Operand 82294 states and 94265 transitions. [2024-11-13 13:01:12,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 311 [2024-11-13 13:01:12,488 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:12,489 INFO L215 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:01:12,509 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-13 13:01:12,689 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:01:12,690 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:12,690 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:12,691 INFO L85 PathProgramCache]: Analyzing trace with hash -2015977643, now seen corresponding path program 1 times [2024-11-13 13:01:12,691 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:12,691 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1450524321] [2024-11-13 13:01:12,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:12,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:13,192 INFO L134 CoverageAnalysis]: Checked inductivity of 157 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-13 13:01:13,192 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:13,192 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1450524321] [2024-11-13 13:01:13,192 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1450524321] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:13,192 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:13,192 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:01:13,193 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097620898] [2024-11-13 13:01:13,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:13,193 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:01:13,193 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:13,193 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:01:13,194 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:01:13,194 INFO L87 Difference]: Start difference. First operand 82294 states and 94265 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:18,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:18,766 INFO L93 Difference]: Finished difference Result 188206 states and 218596 transitions. [2024-11-13 13:01:18,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:01:18,767 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 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 310 [2024-11-13 13:01:18,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:19,146 INFO L225 Difference]: With dead ends: 188206 [2024-11-13 13:01:19,146 INFO L226 Difference]: Without dead ends: 106701 [2024-11-13 13:01:19,199 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 13:01:19,200 INFO L432 NwaCegarLoop]: 1773 mSDtfsCounter, 842 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 2516 mSolverCounterSat, 703 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 842 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 3219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 703 IncrementalHoareTripleChecker+Valid, 2516 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:19,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [842 Valid, 1913 Invalid, 3219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [703 Valid, 2516 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 13:01:19,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106701 states. [2024-11-13 13:01:20,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106701 to 104325. [2024-11-13 13:01:20,670 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104325 states, 104324 states have (on average 1.1296633564663932) internal successors, (117851), 104324 states have internal predecessors, (117851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:20,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104325 states to 104325 states and 117851 transitions. [2024-11-13 13:01:20,803 INFO L78 Accepts]: Start accepts. Automaton has 104325 states and 117851 transitions. Word has length 310 [2024-11-13 13:01:20,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:20,804 INFO L471 AbstractCegarLoop]: Abstraction has 104325 states and 117851 transitions. [2024-11-13 13:01:20,804 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:20,804 INFO L276 IsEmpty]: Start isEmpty. Operand 104325 states and 117851 transitions. [2024-11-13 13:01:20,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 326 [2024-11-13 13:01:20,810 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:20,810 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:20,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-13 13:01:20,811 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:20,811 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:20,811 INFO L85 PathProgramCache]: Analyzing trace with hash -1111327640, now seen corresponding path program 1 times [2024-11-13 13:01:20,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:20,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370534878] [2024-11-13 13:01:20,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:20,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:20,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:22,731 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 162 proven. 113 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-13 13:01:22,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:22,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370534878] [2024-11-13 13:01:22,733 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [370534878] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:01:22,733 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [460109983] [2024-11-13 13:01:22,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:22,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:01:22,733 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:01:22,735 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:01:22,738 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-13 13:01:22,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:22,920 INFO L255 TraceCheckSpWp]: Trace formula consists of 461 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-13 13:01:22,926 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:01:23,088 INFO L134 CoverageAnalysis]: Checked inductivity of 292 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 113 trivial. 0 not checked. [2024-11-13 13:01:23,088 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:01:23,088 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [460109983] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:23,088 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:01:23,088 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 9 [2024-11-13 13:01:23,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007145823] [2024-11-13 13:01:23,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:23,089 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:01:23,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:23,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:01:23,089 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:01:23,090 INFO L87 Difference]: Start difference. First operand 104325 states and 117851 transitions. Second operand has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:28,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:28,711 INFO L93 Difference]: Finished difference Result 207853 states and 234901 transitions. [2024-11-13 13:01:28,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:01:28,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 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 325 [2024-11-13 13:01:28,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:28,856 INFO L225 Difference]: With dead ends: 207853 [2024-11-13 13:01:28,856 INFO L226 Difference]: Without dead ends: 104317 [2024-11-13 13:01:28,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 331 GetRequests, 324 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:01:28,919 INFO L432 NwaCegarLoop]: 654 mSDtfsCounter, 1075 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 2359 mSolverCounterSat, 516 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1075 SdHoareTripleChecker+Valid, 771 SdHoareTripleChecker+Invalid, 2875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 516 IncrementalHoareTripleChecker+Valid, 2359 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:28,920 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1075 Valid, 771 Invalid, 2875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [516 Valid, 2359 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-11-13 13:01:29,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104317 states. [2024-11-13 13:01:30,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104317 to 104314. [2024-11-13 13:01:30,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104314 states, 104313 states have (on average 1.09876046130396) internal successors, (114615), 104313 states have internal predecessors, (114615), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:30,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104314 states to 104314 states and 114615 transitions. [2024-11-13 13:01:30,573 INFO L78 Accepts]: Start accepts. Automaton has 104314 states and 114615 transitions. Word has length 325 [2024-11-13 13:01:30,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:30,574 INFO L471 AbstractCegarLoop]: Abstraction has 104314 states and 114615 transitions. [2024-11-13 13:01:30,574 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.0) internal successors, (213), 3 states have internal predecessors, (213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:30,574 INFO L276 IsEmpty]: Start isEmpty. Operand 104314 states and 114615 transitions. [2024-11-13 13:01:30,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 345 [2024-11-13 13:01:30,577 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:30,578 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:30,595 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-13 13:01:30,778 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:01:30,778 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:30,779 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:30,779 INFO L85 PathProgramCache]: Analyzing trace with hash 1560197545, now seen corresponding path program 1 times [2024-11-13 13:01:30,779 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:30,779 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1300099140] [2024-11-13 13:01:30,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:30,779 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:30,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:31,470 INFO L134 CoverageAnalysis]: Checked inductivity of 500 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 433 trivial. 0 not checked. [2024-11-13 13:01:31,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:31,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1300099140] [2024-11-13 13:01:31,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1300099140] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:31,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:31,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:01:31,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [109198861] [2024-11-13 13:01:31,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:31,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:01:31,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:31,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:01:31,473 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:01:31,473 INFO L87 Difference]: Start difference. First operand 104314 states and 114615 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:38,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:38,124 INFO L93 Difference]: Finished difference Result 218845 states and 241824 transitions. [2024-11-13 13:01:38,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:01:38,125 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 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 344 [2024-11-13 13:01:38,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:38,273 INFO L225 Difference]: With dead ends: 218845 [2024-11-13 13:01:38,274 INFO L226 Difference]: Without dead ends: 115320 [2024-11-13 13:01:38,333 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 13:01:38,334 INFO L432 NwaCegarLoop]: 1418 mSDtfsCounter, 1135 mSDsluCounter, 82 mSDsCounter, 0 mSdLazyCounter, 2357 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1135 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 3110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 2357 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:38,334 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1135 Valid, 1500 Invalid, 3110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [753 Valid, 2357 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-13 13:01:38,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115320 states. [2024-11-13 13:01:39,794 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115320 to 115319. [2024-11-13 13:01:39,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115319 states, 115318 states have (on average 1.082788463206091) internal successors, (124865), 115318 states have internal predecessors, (124865), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:39,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115319 states to 115319 states and 124865 transitions. [2024-11-13 13:01:39,989 INFO L78 Accepts]: Start accepts. Automaton has 115319 states and 124865 transitions. Word has length 344 [2024-11-13 13:01:39,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:39,990 INFO L471 AbstractCegarLoop]: Abstraction has 115319 states and 124865 transitions. [2024-11-13 13:01:39,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 3 states have internal predecessors, (119), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:39,991 INFO L276 IsEmpty]: Start isEmpty. Operand 115319 states and 124865 transitions. [2024-11-13 13:01:39,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 411 [2024-11-13 13:01:39,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:39,999 INFO L215 NwaCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:39,999 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-13 13:01:40,000 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:40,000 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:40,000 INFO L85 PathProgramCache]: Analyzing trace with hash -597953440, now seen corresponding path program 1 times [2024-11-13 13:01:40,000 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:40,000 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1768806529] [2024-11-13 13:01:40,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:40,000 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:40,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:41,856 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 331 proven. 113 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-13 13:01:41,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:41,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1768806529] [2024-11-13 13:01:41,856 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1768806529] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-13 13:01:41,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1368479650] [2024-11-13 13:01:41,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:41,857 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:01:41,857 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 [2024-11-13 13:01:41,859 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-13 13:01:41,861 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-13 13:01:42,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:42,051 INFO L255 TraceCheckSpWp]: Trace formula consists of 575 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-13 13:01:42,055 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-13 13:01:43,107 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 331 proven. 0 refuted. 0 times theorem prover too weak. 212 trivial. 0 not checked. [2024-11-13 13:01:43,107 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-13 13:01:43,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1368479650] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:43,107 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-13 13:01:43,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [7] total 8 [2024-11-13 13:01:43,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238825285] [2024-11-13 13:01:43,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:43,108 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:01:43,108 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:43,109 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:01:43,109 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:01:43,109 INFO L87 Difference]: Start difference. First operand 115319 states and 124865 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:48,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:48,176 INFO L93 Difference]: Finished difference Result 222770 states and 241687 transitions. [2024-11-13 13:01:48,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:01:48,176 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 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 410 [2024-11-13 13:01:48,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:48,322 INFO L225 Difference]: With dead ends: 222770 [2024-11-13 13:01:48,323 INFO L226 Difference]: Without dead ends: 118478 [2024-11-13 13:01:48,375 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 416 GetRequests, 409 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-13 13:01:48,376 INFO L432 NwaCegarLoop]: 995 mSDtfsCounter, 681 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 2431 mSolverCounterSat, 108 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 681 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 2539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 108 IncrementalHoareTripleChecker+Valid, 2431 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:48,376 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [681 Valid, 1127 Invalid, 2539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [108 Valid, 2431 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-13 13:01:48,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118478 states. [2024-11-13 13:01:50,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118478 to 116894. [2024-11-13 13:01:50,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116894 states, 116893 states have (on average 1.075017323535199) internal successors, (125662), 116893 states have internal predecessors, (125662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:50,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116894 states to 116894 states and 125662 transitions. [2024-11-13 13:01:50,327 INFO L78 Accepts]: Start accepts. Automaton has 116894 states and 125662 transitions. Word has length 410 [2024-11-13 13:01:50,327 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:50,327 INFO L471 AbstractCegarLoop]: Abstraction has 116894 states and 125662 transitions. [2024-11-13 13:01:50,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 2 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:50,327 INFO L276 IsEmpty]: Start isEmpty. Operand 116894 states and 125662 transitions. [2024-11-13 13:01:50,343 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 457 [2024-11-13 13:01:50,343 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:50,344 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:50,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-13 13:01:50,544 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_56796fc4-6248-4995-8240-d591ea3dbb18/bin/uautomizer-verify-qhAvR1uOyd/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-13 13:01:50,545 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:50,545 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:50,545 INFO L85 PathProgramCache]: Analyzing trace with hash 2002845891, now seen corresponding path program 1 times [2024-11-13 13:01:50,546 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:50,546 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391422758] [2024-11-13 13:01:50,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:50,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:50,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:50,934 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 679 proven. 0 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-11-13 13:01:50,934 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:50,934 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [391422758] [2024-11-13 13:01:50,934 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [391422758] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:50,934 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:50,935 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:01:50,935 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1412744949] [2024-11-13 13:01:50,935 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:50,936 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:01:50,936 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:50,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:01:50,937 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:01:50,937 INFO L87 Difference]: Start difference. First operand 116894 states and 125662 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:56,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:01:56,721 INFO L93 Difference]: Finished difference Result 232999 states and 250536 transitions. [2024-11-13 13:01:56,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:01:56,722 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 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 456 [2024-11-13 13:01:56,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:01:56,895 INFO L225 Difference]: With dead ends: 232999 [2024-11-13 13:01:56,895 INFO L226 Difference]: Without dead ends: 116894 [2024-11-13 13:01:56,949 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 13:01:56,950 INFO L432 NwaCegarLoop]: 1323 mSDtfsCounter, 929 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 2369 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 929 SdHoareTripleChecker+Valid, 1402 SdHoareTripleChecker+Invalid, 2927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 2369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-13 13:01:56,950 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [929 Valid, 1402 Invalid, 2927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 2369 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-13 13:01:57,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116894 states. [2024-11-13 13:01:58,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116894 to 116882. [2024-11-13 13:01:58,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 116882 states, 116881 states have (on average 1.063380703450518) internal successors, (124289), 116881 states have internal predecessors, (124289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:59,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 116882 states to 116882 states and 124289 transitions. [2024-11-13 13:01:59,008 INFO L78 Accepts]: Start accepts. Automaton has 116882 states and 124289 transitions. Word has length 456 [2024-11-13 13:01:59,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:01:59,009 INFO L471 AbstractCegarLoop]: Abstraction has 116882 states and 124289 transitions. [2024-11-13 13:01:59,009 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:01:59,009 INFO L276 IsEmpty]: Start isEmpty. Operand 116882 states and 124289 transitions. [2024-11-13 13:01:59,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 481 [2024-11-13 13:01:59,019 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:01:59,020 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:01:59,020 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-13 13:01:59,020 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:01:59,021 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:01:59,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1024415871, now seen corresponding path program 1 times [2024-11-13 13:01:59,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:01:59,021 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452072461] [2024-11-13 13:01:59,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:01:59,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:01:59,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:01:59,332 INFO L134 CoverageAnalysis]: Checked inductivity of 833 backedges. 655 proven. 0 refuted. 0 times theorem prover too weak. 178 trivial. 0 not checked. [2024-11-13 13:01:59,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:01:59,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452072461] [2024-11-13 13:01:59,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452072461] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:01:59,333 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:01:59,333 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:01:59,333 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [633277165] [2024-11-13 13:01:59,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:01:59,334 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:01:59,334 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:01:59,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:01:59,334 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:01:59,335 INFO L87 Difference]: Start difference. First operand 116882 states and 124289 transitions. Second operand has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:06,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:06,434 INFO L93 Difference]: Finished difference Result 256583 states and 273562 transitions. [2024-11-13 13:02:06,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:02:06,435 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 480 [2024-11-13 13:02:06,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:06,639 INFO L225 Difference]: With dead ends: 256583 [2024-11-13 13:02:06,639 INFO L226 Difference]: Without dead ends: 140490 [2024-11-13 13:02:06,705 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 13:02:06,706 INFO L432 NwaCegarLoop]: 616 mSDtfsCounter, 868 mSDsluCounter, 78 mSDsCounter, 0 mSdLazyCounter, 2309 mSolverCounterSat, 698 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 868 SdHoareTripleChecker+Valid, 694 SdHoareTripleChecker+Invalid, 3007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 698 IncrementalHoareTripleChecker+Valid, 2309 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:06,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [868 Valid, 694 Invalid, 3007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [698 Valid, 2309 Invalid, 0 Unknown, 0 Unchecked, 6.1s Time] [2024-11-13 13:02:06,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140490 states. [2024-11-13 13:02:08,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140490 to 140474. [2024-11-13 13:02:08,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140474 states, 140473 states have (on average 1.0564307731734923) internal successors, (148400), 140473 states have internal predecessors, (148400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:08,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140474 states to 140474 states and 148400 transitions. [2024-11-13 13:02:08,924 INFO L78 Accepts]: Start accepts. Automaton has 140474 states and 148400 transitions. Word has length 480 [2024-11-13 13:02:08,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:08,925 INFO L471 AbstractCegarLoop]: Abstraction has 140474 states and 148400 transitions. [2024-11-13 13:02:08,925 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 101.66666666666667) internal successors, (305), 3 states have internal predecessors, (305), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:08,925 INFO L276 IsEmpty]: Start isEmpty. Operand 140474 states and 148400 transitions. [2024-11-13 13:02:08,931 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 498 [2024-11-13 13:02:08,931 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:08,931 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:08,932 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-13 13:02:08,932 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:08,932 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:08,932 INFO L85 PathProgramCache]: Analyzing trace with hash -909151757, now seen corresponding path program 1 times [2024-11-13 13:02:08,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:08,932 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1936253333] [2024-11-13 13:02:08,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:08,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:09,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:09,257 INFO L134 CoverageAnalysis]: Checked inductivity of 866 backedges. 326 proven. 0 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2024-11-13 13:02:09,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:09,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1936253333] [2024-11-13 13:02:09,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1936253333] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:02:09,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:02:09,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-13 13:02:09,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852831001] [2024-11-13 13:02:09,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:09,259 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:02:09,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:09,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:02:09,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:02:09,260 INFO L87 Difference]: Start difference. First operand 140474 states and 148400 transitions. Second operand has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:13,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:13,302 INFO L93 Difference]: Finished difference Result 264398 states and 279790 transitions. [2024-11-13 13:02:13,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:02:13,303 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 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 497 [2024-11-13 13:02:13,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:13,463 INFO L225 Difference]: With dead ends: 264398 [2024-11-13 13:02:13,463 INFO L226 Difference]: Without dead ends: 138885 [2024-11-13 13:02:13,521 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 13:02:13,521 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 1566 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 1436 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1566 SdHoareTripleChecker+Valid, 277 SdHoareTripleChecker+Invalid, 1446 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 1436 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:13,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1566 Valid, 277 Invalid, 1446 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 1436 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-13 13:02:13,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138885 states. [2024-11-13 13:02:15,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138885 to 138884. [2024-11-13 13:02:15,528 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 138884 states, 138883 states have (on average 1.055831167241491) internal successors, (146637), 138883 states have internal predecessors, (146637), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:16,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 138884 states to 138884 states and 146637 transitions. [2024-11-13 13:02:16,258 INFO L78 Accepts]: Start accepts. Automaton has 138884 states and 146637 transitions. Word has length 497 [2024-11-13 13:02:16,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:16,259 INFO L471 AbstractCegarLoop]: Abstraction has 138884 states and 146637 transitions. [2024-11-13 13:02:16,259 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.0) internal successors, (216), 2 states have internal predecessors, (216), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:16,259 INFO L276 IsEmpty]: Start isEmpty. Operand 138884 states and 146637 transitions. [2024-11-13 13:02:16,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 500 [2024-11-13 13:02:16,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:16,265 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-13 13:02:16,265 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-13 13:02:16,265 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:16,266 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:16,266 INFO L85 PathProgramCache]: Analyzing trace with hash -1669382089, now seen corresponding path program 1 times [2024-11-13 13:02:16,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:16,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [481266784] [2024-11-13 13:02:16,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:16,266 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:16,508 INFO L134 CoverageAnalysis]: Checked inductivity of 921 backedges. 632 proven. 0 refuted. 0 times theorem prover too weak. 289 trivial. 0 not checked. [2024-11-13 13:02:16,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:16,508 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [481266784] [2024-11-13 13:02:16,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [481266784] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:02:16,508 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:02:16,508 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:02:16,508 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078191488] [2024-11-13 13:02:16,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:16,509 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:02:16,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:16,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:02:16,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:02:16,510 INFO L87 Difference]: Start difference. First operand 138884 states and 146637 transitions. Second operand has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:22,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-13 13:02:22,079 INFO L93 Difference]: Finished difference Result 273826 states and 289224 transitions. [2024-11-13 13:02:22,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-13 13:02:22,080 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 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 499 [2024-11-13 13:02:22,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-13 13:02:22,272 INFO L225 Difference]: With dead ends: 273826 [2024-11-13 13:02:22,272 INFO L226 Difference]: Without dead ends: 135731 [2024-11-13 13:02:22,334 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 13:02:22,334 INFO L432 NwaCegarLoop]: 1586 mSDtfsCounter, 783 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 2377 mSolverCounterSat, 373 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 783 SdHoareTripleChecker+Valid, 1709 SdHoareTripleChecker+Invalid, 2750 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 373 IncrementalHoareTripleChecker+Valid, 2377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-13 13:02:22,335 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [783 Valid, 1709 Invalid, 2750 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [373 Valid, 2377 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-13 13:02:22,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135731 states. [2024-11-13 13:02:23,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135731 to 134142. [2024-11-13 13:02:23,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 134142 states, 134141 states have (on average 1.0445054084880834) internal successors, (140111), 134141 states have internal predecessors, (140111), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:24,050 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134142 states to 134142 states and 140111 transitions. [2024-11-13 13:02:24,052 INFO L78 Accepts]: Start accepts. Automaton has 134142 states and 140111 transitions. Word has length 499 [2024-11-13 13:02:24,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-13 13:02:24,053 INFO L471 AbstractCegarLoop]: Abstraction has 134142 states and 140111 transitions. [2024-11-13 13:02:24,053 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 100.33333333333333) internal successors, (301), 3 states have internal predecessors, (301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-13 13:02:24,053 INFO L276 IsEmpty]: Start isEmpty. Operand 134142 states and 140111 transitions. [2024-11-13 13:02:24,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 509 [2024-11-13 13:02:24,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-13 13:02:24,062 INFO L215 NwaCegarLoop]: trace histogram [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, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 13:02:24,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-13 13:02:24,062 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-13 13:02:24,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-13 13:02:24,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1039875256, now seen corresponding path program 1 times [2024-11-13 13:02:24,063 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-13 13:02:24,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592366436] [2024-11-13 13:02:24,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-13 13:02:24,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-13 13:02:24,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-13 13:02:25,021 INFO L134 CoverageAnalysis]: Checked inductivity of 841 backedges. 591 proven. 0 refuted. 0 times theorem prover too weak. 250 trivial. 0 not checked. [2024-11-13 13:02:25,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-13 13:02:25,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592366436] [2024-11-13 13:02:25,022 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592366436] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-13 13:02:25,022 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-13 13:02:25,022 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-13 13:02:25,022 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812749487] [2024-11-13 13:02:25,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-13 13:02:25,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-13 13:02:25,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-13 13:02:25,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-13 13:02:25,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-13 13:02:25,024 INFO L87 Difference]: Start difference. First operand 134142 states and 140111 transitions. Second operand has 3 states, 3 states have (on average 111.0) internal successors, (333), 3 states have internal predecessors, (333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)