./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-14.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-14.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB --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 d03dd1fa0ccd6c2f276f8e830c5c45c3023586b3294c63b9f2b76eedbdce4e31 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 05:20:37,059 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 05:20:37,132 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 05:20:37,139 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 05:20:37,139 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 05:20:37,169 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 05:20:37,170 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 05:20:37,170 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 05:20:37,170 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 05:20:37,170 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 05:20:37,171 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 05:20:37,171 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 05:20:37,171 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 05:20:37,171 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 05:20:37,172 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 05:20:37,172 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 05:20:37,172 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 05:20:37,172 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 05:20:37,172 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 05:20:37,173 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 05:20:37,173 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 05:20:37,173 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 05:20:37,173 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 05:20:37,173 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 05:20:37,174 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 05:20:37,174 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 05:20:37,174 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 05:20:37,174 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 05:20:37,174 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 05:20:37,174 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:20:37,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:20:37,175 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:20:37,175 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:20:37,175 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 05:20:37,175 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 05:20:37,175 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 05:20:37,176 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 05:20:37,176 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:20:37,176 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 05:20:37,176 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 05:20:37,176 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 05:20:37,177 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 05:20:37,177 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 05:20:37,177 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 05:20:37,177 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 05:20:37,177 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 05:20:37,177 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 05:20:37,178 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 05:20:37,178 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_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB 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 -> d03dd1fa0ccd6c2f276f8e830c5c45c3023586b3294c63b9f2b76eedbdce4e31 [2024-11-28 05:20:37,519 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 05:20:37,530 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 05:20:37,533 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 05:20:37,535 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 05:20:37,535 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 05:20:37,537 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-14.i [2024-11-28 05:20:40,946 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/data/4377ead7f/a3a992de03fa4c118ba096ca5ecd8985/FLAGa10665bbb [2024-11-28 05:20:41,362 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 05:20:41,363 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-14.i [2024-11-28 05:20:41,384 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/data/4377ead7f/a3a992de03fa4c118ba096ca5ecd8985/FLAGa10665bbb [2024-11-28 05:20:41,410 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/data/4377ead7f/a3a992de03fa4c118ba096ca5ecd8985 [2024-11-28 05:20:41,413 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 05:20:41,416 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 05:20:41,417 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 05:20:41,418 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 05:20:41,424 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 05:20:41,425 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:20:41" (1/1) ... [2024-11-28 05:20:41,428 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7490d79a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:41, skipping insertion in model container [2024-11-28 05:20:41,428 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:20:41" (1/1) ... [2024-11-28 05:20:41,475 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 05:20:41,689 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_dc68aa11-1089-4003-8f20-516b60ea61a0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-14.i[916,929] [2024-11-28 05:20:41,875 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:20:41,892 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 05:20:41,906 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_dc68aa11-1089-4003-8f20-516b60ea61a0/sv-benchmarks/c/hardness-nfm22/hardness_fillercode_fillercodesize_ps-cn-250_file-14.i[916,929] [2024-11-28 05:20:42,028 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 05:20:42,052 INFO L204 MainTranslator]: Completed translation [2024-11-28 05:20:42,053 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42 WrapperNode [2024-11-28 05:20:42,053 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 05:20:42,054 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 05:20:42,055 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 05:20:42,055 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 05:20:42,064 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,084 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,198 INFO L138 Inliner]: procedures = 26, calls = 111, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 577 [2024-11-28 05:20:42,198 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 05:20:42,199 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 05:20:42,199 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 05:20:42,200 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 05:20:42,213 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,213 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,236 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,277 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]. [2024-11-28 05:20:42,277 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,277 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,326 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,339 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,351 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,371 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,376 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,393 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 05:20:42,395 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 05:20:42,395 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 05:20:42,395 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 05:20:42,396 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (1/1) ... [2024-11-28 05:20:42,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 05:20:42,426 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:20:42,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 05:20:42,454 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 05:20:42,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 05:20:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 05:20:42,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 05:20:42,490 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 05:20:42,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 05:20:42,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 05:20:42,697 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 05:20:42,699 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 05:20:44,284 INFO L? ?]: Removed 15 outVars from TransFormulas that were not future-live. [2024-11-28 05:20:44,284 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 05:20:44,307 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 05:20:44,308 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 05:20:44,308 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:20:44 BoogieIcfgContainer [2024-11-28 05:20:44,308 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 05:20:44,311 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 05:20:44,311 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 05:20:44,318 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 05:20:44,318 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:20:41" (1/3) ... [2024-11-28 05:20:44,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edc2e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:20:44, skipping insertion in model container [2024-11-28 05:20:44,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:20:42" (2/3) ... [2024-11-28 05:20:44,319 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7edc2e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:20:44, skipping insertion in model container [2024-11-28 05:20:44,319 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:20:44" (3/3) ... [2024-11-28 05:20:44,321 INFO L128 eAbstractionObserver]: Analyzing ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-14.i [2024-11-28 05:20:44,341 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 05:20:44,344 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG hardness_fillercode_fillercodesize_ps-cn-250_file-14.i that has 2 procedures, 251 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 05:20:44,456 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 05:20:44,475 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;@3bfcc868, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 05:20:44,477 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 05:20:44,485 INFO L276 IsEmpty]: Start isEmpty. Operand has 251 states, 150 states have (on average 1.52) internal successors, (228), 151 states have internal predecessors, (228), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-28 05:20:44,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 591 [2024-11-28 05:20:44,549 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:44,551 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:44,552 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:44,559 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:44,560 INFO L85 PathProgramCache]: Analyzing trace with hash -856857451, now seen corresponding path program 1 times [2024-11-28 05:20:44,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:44,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2010103478] [2024-11-28 05:20:44,574 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:44,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:45,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:45,991 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-28 05:20:45,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:45,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2010103478] [2024-11-28 05:20:45,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2010103478] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:45,997 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:45,997 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-28 05:20:45,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618273356] [2024-11-28 05:20:46,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:46,011 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 05:20:46,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:46,045 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 05:20:46,046 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:20:46,051 INFO L87 Difference]: Start difference. First operand has 251 states, 150 states have (on average 1.52) internal successors, (228), 151 states have internal predecessors, (228), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) Second operand has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-28 05:20:46,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:46,171 INFO L93 Difference]: Finished difference Result 494 states and 938 transitions. [2024-11-28 05:20:46,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 05:20:46,174 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 590 [2024-11-28 05:20:46,182 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:46,199 INFO L225 Difference]: With dead ends: 494 [2024-11-28 05:20:46,200 INFO L226 Difference]: Without dead ends: 246 [2024-11-28 05:20:46,212 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 05:20:46,216 INFO L435 NwaCegarLoop]: 411 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 411 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:46,217 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 411 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 05:20:46,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 246 states. [2024-11-28 05:20:46,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 246 to 246. [2024-11-28 05:20:46,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246 states, 146 states have (on average 1.4726027397260273) internal successors, (215), 146 states have internal predecessors, (215), 98 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 98 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-28 05:20:46,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 411 transitions. [2024-11-28 05:20:46,373 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 411 transitions. Word has length 590 [2024-11-28 05:20:46,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:46,379 INFO L471 AbstractCegarLoop]: Abstraction has 246 states and 411 transitions. [2024-11-28 05:20:46,379 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 51.5) internal successors, (103), 2 states have internal predecessors, (103), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-28 05:20:46,380 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 411 transitions. [2024-11-28 05:20:46,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-28 05:20:46,410 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:46,411 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:46,411 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 05:20:46,412 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:46,413 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:46,414 INFO L85 PathProgramCache]: Analyzing trace with hash 627183643, now seen corresponding path program 1 times [2024-11-28 05:20:46,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:46,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474216921] [2024-11-28 05:20:46,414 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:46,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:46,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:47,525 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-28 05:20:47,525 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:47,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474216921] [2024-11-28 05:20:47,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474216921] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:47,527 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:47,527 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 05:20:47,527 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [208368192] [2024-11-28 05:20:47,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:47,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 05:20:47,534 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:47,535 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 05:20:47,536 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 05:20:47,536 INFO L87 Difference]: Start difference. First operand 246 states and 411 transitions. Second operand has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-28 05:20:47,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:47,723 INFO L93 Difference]: Finished difference Result 639 states and 1071 transitions. [2024-11-28 05:20:47,724 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 05:20:47,724 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 591 [2024-11-28 05:20:47,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:47,739 INFO L225 Difference]: With dead ends: 639 [2024-11-28 05:20:47,739 INFO L226 Difference]: Without dead ends: 396 [2024-11-28 05:20:47,741 INFO L434 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 [2024-11-28 05:20:47,743 INFO L435 NwaCegarLoop]: 528 mSDtfsCounter, 247 mSDsluCounter, 398 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 926 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:47,745 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 926 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 05:20:47,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-28 05:20:47,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 393. [2024-11-28 05:20:47,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 393 states, 245 states have (on average 1.506122448979592) internal successors, (369), 246 states have internal predecessors, (369), 145 states have call successors, (145), 2 states have call predecessors, (145), 2 states have return successors, (145), 144 states have call predecessors, (145), 145 states have call successors, (145) [2024-11-28 05:20:47,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 393 states to 393 states and 659 transitions. [2024-11-28 05:20:47,886 INFO L78 Accepts]: Start accepts. Automaton has 393 states and 659 transitions. Word has length 591 [2024-11-28 05:20:47,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:47,893 INFO L471 AbstractCegarLoop]: Abstraction has 393 states and 659 transitions. [2024-11-28 05:20:47,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.666666666666664) internal successors, (104), 3 states have internal predecessors, (104), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-28 05:20:47,894 INFO L276 IsEmpty]: Start isEmpty. Operand 393 states and 659 transitions. [2024-11-28 05:20:47,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-28 05:20:47,913 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:47,914 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:47,914 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 05:20:47,914 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:47,916 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:47,917 INFO L85 PathProgramCache]: Analyzing trace with hash -402175655, now seen corresponding path program 1 times [2024-11-28 05:20:47,921 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:47,921 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811112943] [2024-11-28 05:20:47,921 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:47,921 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:49,404 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-28 05:20:49,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:49,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811112943] [2024-11-28 05:20:49,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811112943] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:49,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:49,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:20:49,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375340588] [2024-11-28 05:20:49,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:49,406 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:20:49,406 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:49,407 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:20:49,408 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:20:49,408 INFO L87 Difference]: Start difference. First operand 393 states and 659 transitions. Second operand has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-28 05:20:50,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:50,980 INFO L93 Difference]: Finished difference Result 1563 states and 2627 transitions. [2024-11-28 05:20:50,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 05:20:50,982 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 591 [2024-11-28 05:20:50,984 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:51,003 INFO L225 Difference]: With dead ends: 1563 [2024-11-28 05:20:51,003 INFO L226 Difference]: Without dead ends: 1173 [2024-11-28 05:20:51,006 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:20:51,007 INFO L435 NwaCegarLoop]: 816 mSDtfsCounter, 571 mSDsluCounter, 1095 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 197 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 1911 SdHoareTripleChecker+Invalid, 444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 197 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:51,007 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 1911 Invalid, 444 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [197 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 05:20:51,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1173 states. [2024-11-28 05:20:51,327 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1173 to 1165. [2024-11-28 05:20:51,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1165 states, 723 states have (on average 1.5062240663900415) internal successors, (1089), 726 states have internal predecessors, (1089), 435 states have call successors, (435), 6 states have call predecessors, (435), 6 states have return successors, (435), 432 states have call predecessors, (435), 435 states have call successors, (435) [2024-11-28 05:20:51,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1165 states to 1165 states and 1959 transitions. [2024-11-28 05:20:51,350 INFO L78 Accepts]: Start accepts. Automaton has 1165 states and 1959 transitions. Word has length 591 [2024-11-28 05:20:51,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:51,352 INFO L471 AbstractCegarLoop]: Abstraction has 1165 states and 1959 transitions. [2024-11-28 05:20:51,353 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.8) internal successors, (104), 5 states have internal predecessors, (104), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-28 05:20:51,353 INFO L276 IsEmpty]: Start isEmpty. Operand 1165 states and 1959 transitions. [2024-11-28 05:20:51,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-11-28 05:20:51,366 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:51,366 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:51,366 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 05:20:51,368 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:51,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:51,369 INFO L85 PathProgramCache]: Analyzing trace with hash 135907780, now seen corresponding path program 1 times [2024-11-28 05:20:51,369 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:51,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952222863] [2024-11-28 05:20:51,370 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:51,370 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:51,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:53,948 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-28 05:20:53,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:53,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952222863] [2024-11-28 05:20:53,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [952222863] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:20:53,948 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:20:53,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:20:53,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1537339348] [2024-11-28 05:20:53,949 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:20:53,950 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:20:53,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:20:53,951 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:20:53,951 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:20:53,951 INFO L87 Difference]: Start difference. First operand 1165 states and 1959 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-28 05:20:55,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:20:55,965 INFO L93 Difference]: Finished difference Result 2335 states and 3927 transitions. [2024-11-28 05:20:55,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:20:55,967 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 592 [2024-11-28 05:20:55,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:20:55,986 INFO L225 Difference]: With dead ends: 2335 [2024-11-28 05:20:55,987 INFO L226 Difference]: Without dead ends: 1945 [2024-11-28 05:20:55,990 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-11-28 05:20:55,991 INFO L435 NwaCegarLoop]: 1086 mSDtfsCounter, 938 mSDsluCounter, 689 mSDsCounter, 0 mSdLazyCounter, 452 mSolverCounterSat, 199 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 938 SdHoareTripleChecker+Valid, 1775 SdHoareTripleChecker+Invalid, 651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 199 IncrementalHoareTripleChecker+Valid, 452 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:20:55,992 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [938 Valid, 1775 Invalid, 651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [199 Valid, 452 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 05:20:55,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1945 states. [2024-11-28 05:20:56,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1945 to 1939. [2024-11-28 05:20:56,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1939 states, 1203 states have (on average 1.5070656691604323) internal successors, (1813), 1208 states have internal predecessors, (1813), 725 states have call successors, (725), 10 states have call predecessors, (725), 10 states have return successors, (725), 720 states have call predecessors, (725), 725 states have call successors, (725) [2024-11-28 05:20:56,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1939 states to 1939 states and 3263 transitions. [2024-11-28 05:20:56,453 INFO L78 Accepts]: Start accepts. Automaton has 1939 states and 3263 transitions. Word has length 592 [2024-11-28 05:20:56,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:20:56,458 INFO L471 AbstractCegarLoop]: Abstraction has 1939 states and 3263 transitions. [2024-11-28 05:20:56,459 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-28 05:20:56,459 INFO L276 IsEmpty]: Start isEmpty. Operand 1939 states and 3263 transitions. [2024-11-28 05:20:56,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-11-28 05:20:56,469 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:20:56,470 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:20:56,470 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 05:20:56,470 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:20:56,471 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:20:56,471 INFO L85 PathProgramCache]: Analyzing trace with hash 63521222, now seen corresponding path program 1 times [2024-11-28 05:20:56,471 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:20:56,472 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687938326] [2024-11-28 05:20:56,472 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:56,472 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:20:56,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:57,741 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 12 proven. 279 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-11-28 05:20:57,741 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:20:57,741 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687938326] [2024-11-28 05:20:57,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687938326] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:20:57,742 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1900790032] [2024-11-28 05:20:57,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:20:57,742 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:20:57,742 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:20:57,748 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:20:57,750 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 05:20:58,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:20:58,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 1286 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:20:58,177 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:00,063 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 1593 proven. 279 refuted. 0 times theorem prover too weak. 17140 trivial. 0 not checked. [2024-11-28 05:21:00,063 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:01,359 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 12 proven. 279 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-11-28 05:21:01,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1900790032] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:01,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:01,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-28 05:21:01,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1040179351] [2024-11-28 05:21:01,361 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:01,363 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:21:01,363 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:01,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:21:01,365 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:21:01,365 INFO L87 Difference]: Start difference. First operand 1939 states and 3263 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (191), 2 states have call predecessors, (191), 4 states have return successors, (192), 2 states have call predecessors, (192), 2 states have call successors, (192) [2024-11-28 05:21:02,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:02,441 INFO L93 Difference]: Finished difference Result 3945 states and 6587 transitions. [2024-11-28 05:21:02,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:21:02,442 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (191), 2 states have call predecessors, (191), 4 states have return successors, (192), 2 states have call predecessors, (192), 2 states have call successors, (192) Word has length 592 [2024-11-28 05:21:02,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:02,467 INFO L225 Difference]: With dead ends: 3945 [2024-11-28 05:21:02,467 INFO L226 Difference]: Without dead ends: 2009 [2024-11-28 05:21:02,479 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1181 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:21:02,482 INFO L435 NwaCegarLoop]: 317 mSDtfsCounter, 369 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 501 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 735 SdHoareTripleChecker+Invalid, 541 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 501 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:02,482 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 735 Invalid, 541 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 501 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 05:21:02,486 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2009 states. [2024-11-28 05:21:02,948 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2009 to 1986. [2024-11-28 05:21:02,954 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1986 states, 1236 states have (on average 1.4854368932038835) internal successors, (1836), 1242 states have internal predecessors, (1836), 729 states have call successors, (729), 20 states have call predecessors, (729), 20 states have return successors, (729), 723 states have call predecessors, (729), 729 states have call successors, (729) [2024-11-28 05:21:02,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1986 states to 1986 states and 3294 transitions. [2024-11-28 05:21:02,981 INFO L78 Accepts]: Start accepts. Automaton has 1986 states and 3294 transitions. Word has length 592 [2024-11-28 05:21:02,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:02,982 INFO L471 AbstractCegarLoop]: Abstraction has 1986 states and 3294 transitions. [2024-11-28 05:21:02,983 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (191), 2 states have call predecessors, (191), 4 states have return successors, (192), 2 states have call predecessors, (192), 2 states have call successors, (192) [2024-11-28 05:21:02,983 INFO L276 IsEmpty]: Start isEmpty. Operand 1986 states and 3294 transitions. [2024-11-28 05:21:02,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-11-28 05:21:02,991 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:02,992 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:03,008 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 05:21:03,192 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:03,193 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:21:03,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:03,194 INFO L85 PathProgramCache]: Analyzing trace with hash -616537148, now seen corresponding path program 1 times [2024-11-28 05:21:03,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:03,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1842955682] [2024-11-28 05:21:03,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:03,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:05,124 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 156 proven. 135 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-11-28 05:21:05,124 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:05,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1842955682] [2024-11-28 05:21:05,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1842955682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:05,124 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2074548095] [2024-11-28 05:21:05,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:05,125 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:05,125 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:05,127 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:05,165 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 05:21:05,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:05,583 INFO L256 TraceCheckSpWp]: Trace formula consists of 1284 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 05:21:05,605 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:06,596 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 9561 proven. 135 refuted. 0 times theorem prover too weak. 9316 trivial. 0 not checked. [2024-11-28 05:21:06,598 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:07,555 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 156 proven. 135 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-11-28 05:21:07,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2074548095] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:07,556 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:07,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 11 [2024-11-28 05:21:07,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640680999] [2024-11-28 05:21:07,556 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:07,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 05:21:07,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:07,560 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 05:21:07,560 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:21:07,560 INFO L87 Difference]: Start difference. First operand 1986 states and 3294 transitions. Second operand has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 2 states have call successors, (143), 2 states have call predecessors, (143), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) [2024-11-28 05:21:13,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:13,172 INFO L93 Difference]: Finished difference Result 5926 states and 9764 transitions. [2024-11-28 05:21:13,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-28 05:21:13,174 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 2 states have call successors, (143), 2 states have call predecessors, (143), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) Word has length 592 [2024-11-28 05:21:13,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:13,215 INFO L225 Difference]: With dead ends: 5926 [2024-11-28 05:21:13,215 INFO L226 Difference]: Without dead ends: 3950 [2024-11-28 05:21:13,227 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1214 GetRequests, 1181 SyntacticMatches, 2 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 204 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=295, Invalid=761, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 05:21:13,229 INFO L435 NwaCegarLoop]: 917 mSDtfsCounter, 1061 mSDsluCounter, 2924 mSDsCounter, 0 mSdLazyCounter, 2910 mSolverCounterSat, 623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1115 SdHoareTripleChecker+Valid, 3841 SdHoareTripleChecker+Invalid, 3533 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 623 IncrementalHoareTripleChecker+Valid, 2910 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:13,230 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1115 Valid, 3841 Invalid, 3533 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [623 Valid, 2910 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 05:21:13,237 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3950 states. [2024-11-28 05:21:14,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3950 to 3501. [2024-11-28 05:21:14,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3501 states, 2185 states have (on average 1.4718535469107552) internal successors, (3216), 2196 states have internal predecessors, (3216), 1270 states have call successors, (1270), 45 states have call predecessors, (1270), 45 states have return successors, (1270), 1259 states have call predecessors, (1270), 1270 states have call successors, (1270) [2024-11-28 05:21:14,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3501 states to 3501 states and 5756 transitions. [2024-11-28 05:21:14,152 INFO L78 Accepts]: Start accepts. Automaton has 3501 states and 5756 transitions. Word has length 592 [2024-11-28 05:21:14,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:14,153 INFO L471 AbstractCegarLoop]: Abstraction has 3501 states and 5756 transitions. [2024-11-28 05:21:14,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 12.0) internal successors, (132), 11 states have internal predecessors, (132), 2 states have call successors, (143), 2 states have call predecessors, (143), 4 states have return successors, (144), 2 states have call predecessors, (144), 2 states have call successors, (144) [2024-11-28 05:21:14,154 INFO L276 IsEmpty]: Start isEmpty. Operand 3501 states and 5756 transitions. [2024-11-28 05:21:14,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-11-28 05:21:14,162 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:14,162 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:14,176 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 05:21:14,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:14,363 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:21:14,363 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:14,364 INFO L85 PathProgramCache]: Analyzing trace with hash -1221943631, now seen corresponding path program 1 times [2024-11-28 05:21:14,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:14,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707837735] [2024-11-28 05:21:14,364 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:14,364 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:18,073 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-28 05:21:18,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:18,073 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707837735] [2024-11-28 05:21:18,073 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1707837735] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:21:18,073 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:21:18,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 05:21:18,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1917316247] [2024-11-28 05:21:18,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:21:18,075 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:21:18,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:18,076 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:21:18,076 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2024-11-28 05:21:18,076 INFO L87 Difference]: Start difference. First operand 3501 states and 5756 transitions. Second operand has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-28 05:21:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:22,513 INFO L93 Difference]: Finished difference Result 8484 states and 13910 transitions. [2024-11-28 05:21:22,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 05:21:22,514 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 592 [2024-11-28 05:21:22,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:22,554 INFO L225 Difference]: With dead ends: 8484 [2024-11-28 05:21:22,555 INFO L226 Difference]: Without dead ends: 4993 [2024-11-28 05:21:22,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:21:22,571 INFO L435 NwaCegarLoop]: 705 mSDtfsCounter, 794 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 1464 mSolverCounterSat, 256 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 794 SdHoareTripleChecker+Valid, 2457 SdHoareTripleChecker+Invalid, 1720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 256 IncrementalHoareTripleChecker+Valid, 1464 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:22,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [794 Valid, 2457 Invalid, 1720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [256 Valid, 1464 Invalid, 0 Unknown, 0 Unchecked, 3.5s Time] [2024-11-28 05:21:22,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4993 states. [2024-11-28 05:21:23,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4993 to 4885. [2024-11-28 05:21:23,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4885 states, 3029 states have (on average 1.463519313304721) internal successors, (4433), 3044 states have internal predecessors, (4433), 1787 states have call successors, (1787), 68 states have call predecessors, (1787), 68 states have return successors, (1787), 1772 states have call predecessors, (1787), 1787 states have call successors, (1787) [2024-11-28 05:21:23,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4885 states to 4885 states and 8007 transitions. [2024-11-28 05:21:23,868 INFO L78 Accepts]: Start accepts. Automaton has 4885 states and 8007 transitions. Word has length 592 [2024-11-28 05:21:23,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:23,874 INFO L471 AbstractCegarLoop]: Abstraction has 4885 states and 8007 transitions. [2024-11-28 05:21:23,874 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 13.125) internal successors, (105), 8 states have internal predecessors, (105), 2 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-28 05:21:23,874 INFO L276 IsEmpty]: Start isEmpty. Operand 4885 states and 8007 transitions. [2024-11-28 05:21:23,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-11-28 05:21:23,887 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:23,887 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:23,887 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 05:21:23,888 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:21:23,888 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:23,888 INFO L85 PathProgramCache]: Analyzing trace with hash -520343757, now seen corresponding path program 1 times [2024-11-28 05:21:23,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:23,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1472451396] [2024-11-28 05:21:23,889 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:23,889 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:25,828 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 19012 trivial. 0 not checked. [2024-11-28 05:21:25,829 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:25,829 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1472451396] [2024-11-28 05:21:25,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1472451396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 05:21:25,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 05:21:25,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 05:21:25,830 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142657288] [2024-11-28 05:21:25,830 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 05:21:25,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 05:21:25,832 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:25,833 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 05:21:25,833 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 05:21:25,837 INFO L87 Difference]: Start difference. First operand 4885 states and 8007 transitions. Second operand has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-28 05:21:28,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:28,953 INFO L93 Difference]: Finished difference Result 10928 states and 17913 transitions. [2024-11-28 05:21:28,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 05:21:28,957 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) Word has length 592 [2024-11-28 05:21:28,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:29,025 INFO L225 Difference]: With dead ends: 10928 [2024-11-28 05:21:29,025 INFO L226 Difference]: Without dead ends: 6122 [2024-11-28 05:21:29,048 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:21:29,051 INFO L435 NwaCegarLoop]: 980 mSDtfsCounter, 633 mSDsluCounter, 968 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 633 SdHoareTripleChecker+Valid, 1948 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.2s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:29,051 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [633 Valid, 1948 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 2.2s Time] [2024-11-28 05:21:29,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6122 states. [2024-11-28 05:21:30,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6122 to 6102. [2024-11-28 05:21:30,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6102 states, 3788 states have (on average 1.462777191129884) internal successors, (5541), 3808 states have internal predecessors, (5541), 2228 states have call successors, (2228), 85 states have call predecessors, (2228), 85 states have return successors, (2228), 2208 states have call predecessors, (2228), 2228 states have call successors, (2228) [2024-11-28 05:21:30,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6102 states to 6102 states and 9997 transitions. [2024-11-28 05:21:30,785 INFO L78 Accepts]: Start accepts. Automaton has 6102 states and 9997 transitions. Word has length 592 [2024-11-28 05:21:30,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:30,787 INFO L471 AbstractCegarLoop]: Abstraction has 6102 states and 9997 transitions. [2024-11-28 05:21:30,789 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 21.0) internal successors, (105), 5 states have internal predecessors, (105), 1 states have call successors, (98), 1 states have call predecessors, (98), 1 states have return successors, (98), 1 states have call predecessors, (98), 1 states have call successors, (98) [2024-11-28 05:21:30,790 INFO L276 IsEmpty]: Start isEmpty. Operand 6102 states and 9997 transitions. [2024-11-28 05:21:30,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-11-28 05:21:30,804 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:30,804 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:30,805 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 05:21:30,805 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:21:30,805 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:30,806 INFO L85 PathProgramCache]: Analyzing trace with hash -1616310417, now seen corresponding path program 1 times [2024-11-28 05:21:30,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:30,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529088682] [2024-11-28 05:21:30,810 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:30,810 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:31,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:31,995 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 267 proven. 24 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-11-28 05:21:31,995 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:31,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529088682] [2024-11-28 05:21:31,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1529088682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:31,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [426629259] [2024-11-28 05:21:31,996 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:31,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:31,996 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:31,999 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:32,003 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 05:21:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:32,470 INFO L256 TraceCheckSpWp]: Trace formula consists of 1278 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 05:21:32,495 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:32,775 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 3123 proven. 24 refuted. 0 times theorem prover too weak. 15865 trivial. 0 not checked. [2024-11-28 05:21:32,776 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:33,433 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 267 proven. 24 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-11-28 05:21:33,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [426629259] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:33,433 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:33,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-28 05:21:33,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295396478] [2024-11-28 05:21:33,434 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:33,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:21:33,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:33,437 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:21:33,437 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 05:21:33,437 INFO L87 Difference]: Start difference. First operand 6102 states and 9997 transitions. Second operand has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-28 05:21:35,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:35,397 INFO L93 Difference]: Finished difference Result 12281 states and 20012 transitions. [2024-11-28 05:21:35,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 05:21:35,398 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) Word has length 592 [2024-11-28 05:21:35,399 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:35,468 INFO L225 Difference]: With dead ends: 12281 [2024-11-28 05:21:35,472 INFO L226 Difference]: Without dead ends: 6258 [2024-11-28 05:21:35,494 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1191 GetRequests, 1181 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-28 05:21:35,496 INFO L435 NwaCegarLoop]: 304 mSDtfsCounter, 260 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 486 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 348 SdHoareTripleChecker+Valid, 716 SdHoareTripleChecker+Invalid, 512 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 486 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:35,497 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [348 Valid, 716 Invalid, 512 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 486 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 05:21:35,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6258 states. [2024-11-28 05:21:37,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6258 to 6154. [2024-11-28 05:21:37,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6154 states, 3827 states have (on average 1.4413378625555264) internal successors, (5516), 3847 states have internal predecessors, (5516), 2228 states have call successors, (2228), 98 states have call predecessors, (2228), 98 states have return successors, (2228), 2208 states have call predecessors, (2228), 2228 states have call successors, (2228) [2024-11-28 05:21:37,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6154 states to 6154 states and 9972 transitions. [2024-11-28 05:21:37,427 INFO L78 Accepts]: Start accepts. Automaton has 6154 states and 9972 transitions. Word has length 592 [2024-11-28 05:21:37,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:21:37,428 INFO L471 AbstractCegarLoop]: Abstraction has 6154 states and 9972 transitions. [2024-11-28 05:21:37,429 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.285714285714285) internal successors, (114), 7 states have internal predecessors, (114), 2 states have call successors, (106), 2 states have call predecessors, (106), 4 states have return successors, (107), 2 states have call predecessors, (107), 2 states have call successors, (107) [2024-11-28 05:21:37,429 INFO L276 IsEmpty]: Start isEmpty. Operand 6154 states and 9972 transitions. [2024-11-28 05:21:37,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 593 [2024-11-28 05:21:37,437 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:21:37,437 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:21:37,452 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 05:21:37,642 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:37,643 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:21:37,643 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:21:37,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1398793201, now seen corresponding path program 1 times [2024-11-28 05:21:37,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:21:37,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [249390597] [2024-11-28 05:21:37,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:37,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:21:37,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:39,331 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 201 proven. 90 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-11-28 05:21:39,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:21:39,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [249390597] [2024-11-28 05:21:39,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [249390597] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:21:39,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1737206615] [2024-11-28 05:21:39,332 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:21:39,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:21:39,333 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:21:39,335 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:21:39,338 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 05:21:39,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:21:39,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-28 05:21:39,803 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:21:42,594 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 11633 proven. 309 refuted. 0 times theorem prover too weak. 7070 trivial. 0 not checked. [2024-11-28 05:21:42,594 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:21:43,839 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 201 proven. 90 refuted. 0 times theorem prover too weak. 18721 trivial. 0 not checked. [2024-11-28 05:21:43,839 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1737206615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 05:21:43,839 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 05:21:43,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 13, 7] total 21 [2024-11-28 05:21:43,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1248553958] [2024-11-28 05:21:43,840 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 05:21:43,842 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-28 05:21:43,843 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:21:43,844 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-28 05:21:43,845 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2024-11-28 05:21:43,845 INFO L87 Difference]: Start difference. First operand 6154 states and 9972 transitions. Second operand has 21 states, 21 states have (on average 10.095238095238095) internal successors, (212), 20 states have internal predecessors, (212), 6 states have call successors, (175), 4 states have call predecessors, (175), 7 states have return successors, (177), 6 states have call predecessors, (177), 6 states have call successors, (177) [2024-11-28 05:21:55,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:21:55,078 INFO L93 Difference]: Finished difference Result 36401 states and 57782 transitions. [2024-11-28 05:21:55,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-11-28 05:21:55,079 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 10.095238095238095) internal successors, (212), 20 states have internal predecessors, (212), 6 states have call successors, (175), 4 states have call predecessors, (175), 7 states have return successors, (177), 6 states have call predecessors, (177), 6 states have call successors, (177) Word has length 592 [2024-11-28 05:21:55,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:21:55,308 INFO L225 Difference]: With dead ends: 36401 [2024-11-28 05:21:55,309 INFO L226 Difference]: Without dead ends: 30326 [2024-11-28 05:21:55,349 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1263 GetRequests, 1176 SyntacticMatches, 0 SemanticMatches, 87 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2846 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=1692, Invalid=6140, Unknown=0, NotChecked=0, Total=7832 [2024-11-28 05:21:55,353 INFO L435 NwaCegarLoop]: 504 mSDtfsCounter, 2141 mSDsluCounter, 1971 mSDsCounter, 0 mSdLazyCounter, 2754 mSolverCounterSat, 1415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2243 SdHoareTripleChecker+Valid, 2475 SdHoareTripleChecker+Invalid, 4169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1415 IncrementalHoareTripleChecker+Valid, 2754 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2024-11-28 05:21:55,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2243 Valid, 2475 Invalid, 4169 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1415 Valid, 2754 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2024-11-28 05:21:55,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30326 states. [2024-11-28 05:22:00,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30326 to 25989. [2024-11-28 05:22:00,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25989 states, 16704 states have (on average 1.4437859195402298) internal successors, (24117), 16806 states have internal predecessors, (24117), 8710 states have call successors, (8710), 574 states have call predecessors, (8710), 574 states have return successors, (8710), 8608 states have call predecessors, (8710), 8710 states have call successors, (8710) [2024-11-28 05:22:01,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25989 states to 25989 states and 41537 transitions. [2024-11-28 05:22:01,109 INFO L78 Accepts]: Start accepts. Automaton has 25989 states and 41537 transitions. Word has length 592 [2024-11-28 05:22:01,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:22:01,111 INFO L471 AbstractCegarLoop]: Abstraction has 25989 states and 41537 transitions. [2024-11-28 05:22:01,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 10.095238095238095) internal successors, (212), 20 states have internal predecessors, (212), 6 states have call successors, (175), 4 states have call predecessors, (175), 7 states have return successors, (177), 6 states have call predecessors, (177), 6 states have call successors, (177) [2024-11-28 05:22:01,111 INFO L276 IsEmpty]: Start isEmpty. Operand 25989 states and 41537 transitions. [2024-11-28 05:22:01,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-11-28 05:22:01,140 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:01,141 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:01,154 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 05:22:01,345 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 05:22:01,345 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:22:01,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:01,347 INFO L85 PathProgramCache]: Analyzing trace with hash -79492826, now seen corresponding path program 1 times [2024-11-28 05:22:01,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:01,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717477574] [2024-11-28 05:22:01,348 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:01,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:22:01,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898080064] [2024-11-28 05:22:01,881 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:01,882 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:22:01,882 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:01,884 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:22:02,074 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 05:22:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:02,577 INFO L256 TraceCheckSpWp]: Trace formula consists of 1281 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 05:22:02,591 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:04,718 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 6297 proven. 231 refuted. 0 times theorem prover too weak. 12484 trivial. 0 not checked. [2024-11-28 05:22:04,719 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:22:05,845 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:05,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717477574] [2024-11-28 05:22:05,846 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:22:05,846 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898080064] [2024-11-28 05:22:05,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [898080064] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:22:05,847 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:22:05,847 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-28 05:22:05,847 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276265932] [2024-11-28 05:22:05,847 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 05:22:05,851 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 05:22:05,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:05,852 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 05:22:05,852 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-28 05:22:05,852 INFO L87 Difference]: Start difference. First operand 25989 states and 41537 transitions. Second operand has 7 states, 7 states have (on average 16.0) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (98), 2 states have call predecessors, (98), 3 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-28 05:22:14,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:14,113 INFO L93 Difference]: Finished difference Result 79817 states and 126088 transitions. [2024-11-28 05:22:14,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 05:22:14,114 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (98), 2 states have call predecessors, (98), 3 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 593 [2024-11-28 05:22:14,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:22:14,512 INFO L225 Difference]: With dead ends: 79817 [2024-11-28 05:22:14,512 INFO L226 Difference]: Without dead ends: 53907 [2024-11-28 05:22:14,628 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 647 GetRequests, 634 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=76, Invalid=134, Unknown=0, NotChecked=0, Total=210 [2024-11-28 05:22:14,629 INFO L435 NwaCegarLoop]: 328 mSDtfsCounter, 300 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 826 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 1325 SdHoareTripleChecker+Invalid, 851 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 826 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 05:22:14,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 1325 Invalid, 851 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 826 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 05:22:14,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53907 states. [2024-11-28 05:22:23,886 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53907 to 52881. [2024-11-28 05:22:23,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52881 states, 34079 states have (on average 1.4268317732327827) internal successors, (48625), 34282 states have internal predecessors, (48625), 17373 states have call successors, (17373), 1428 states have call predecessors, (17373), 1428 states have return successors, (17373), 17170 states have call predecessors, (17373), 17373 states have call successors, (17373) [2024-11-28 05:22:24,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52881 states to 52881 states and 83371 transitions. [2024-11-28 05:22:24,189 INFO L78 Accepts]: Start accepts. Automaton has 52881 states and 83371 transitions. Word has length 593 [2024-11-28 05:22:24,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 05:22:24,190 INFO L471 AbstractCegarLoop]: Abstraction has 52881 states and 83371 transitions. [2024-11-28 05:22:24,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 16.0) internal successors, (112), 6 states have internal predecessors, (112), 2 states have call successors, (98), 2 states have call predecessors, (98), 3 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-28 05:22:24,191 INFO L276 IsEmpty]: Start isEmpty. Operand 52881 states and 83371 transitions. [2024-11-28 05:22:24,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 594 [2024-11-28 05:22:24,213 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 05:22:24,213 INFO L218 NwaCegarLoop]: trace histogram [98, 98, 98, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 05:22:24,227 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 05:22:24,417 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:22:24,418 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 05:22:24,418 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 05:22:24,418 INFO L85 PathProgramCache]: Analyzing trace with hash -888839452, now seen corresponding path program 1 times [2024-11-28 05:22:24,418 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 05:22:24,419 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [10331688] [2024-11-28 05:22:24,419 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:24,419 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 05:22:24,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-28 05:22:24,859 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1825857605] [2024-11-28 05:22:24,859 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 05:22:24,859 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 05:22:24,859 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 05:22:24,861 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 05:22:24,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_dc68aa11-1089-4003-8f20-516b60ea61a0/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 05:22:25,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 05:22:25,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 1279 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 05:22:25,448 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 05:22:28,497 INFO L134 CoverageAnalysis]: Checked inductivity of 19012 backedges. 5571 proven. 240 refuted. 0 times theorem prover too weak. 13201 trivial. 0 not checked. [2024-11-28 05:22:28,498 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 05:22:29,839 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 05:22:29,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [10331688] [2024-11-28 05:22:29,840 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-28 05:22:29,840 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1825857605] [2024-11-28 05:22:29,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1825857605] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 05:22:29,840 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-28 05:22:29,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-28 05:22:29,840 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846800034] [2024-11-28 05:22:29,841 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-28 05:22:29,841 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 05:22:29,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 05:22:29,842 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 05:22:29,842 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-28 05:22:29,843 INFO L87 Difference]: Start difference. First operand 52881 states and 83371 transitions. Second operand has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (98), 2 states have call predecessors, (98), 3 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) [2024-11-28 05:22:37,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 05:22:37,838 INFO L93 Difference]: Finished difference Result 107551 states and 168484 transitions. [2024-11-28 05:22:37,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-28 05:22:37,839 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 14.0) internal successors, (112), 7 states have internal predecessors, (112), 2 states have call successors, (98), 2 states have call predecessors, (98), 3 states have return successors, (98), 2 states have call predecessors, (98), 2 states have call successors, (98) Word has length 593 [2024-11-28 05:22:37,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 05:22:38,227 INFO L225 Difference]: With dead ends: 107551 [2024-11-28 05:22:38,228 INFO L226 Difference]: Without dead ends: 54753 [2024-11-28 05:22:38,397 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1092 GetRequests, 1074 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=112, Invalid=268, Unknown=0, NotChecked=0, Total=380 [2024-11-28 05:22:38,399 INFO L435 NwaCegarLoop]: 330 mSDtfsCounter, 284 mSDsluCounter, 1300 mSDsCounter, 0 mSdLazyCounter, 928 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 314 SdHoareTripleChecker+Valid, 1630 SdHoareTripleChecker+Invalid, 953 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 928 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 05:22:38,399 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [314 Valid, 1630 Invalid, 953 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 928 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 05:22:38,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54753 states.