./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/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_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/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 64bit --witnessprinter.graph.data.programhash 7bfb32b49701ea1484553c69a9c6c976094bd0d4ca4d5ea9d4d30cdc2f2571dd --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:57:58,842 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:57:58,955 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:57:58,965 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:57:58,969 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:57:59,021 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:57:59,023 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:57:59,023 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:57:59,024 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:57:59,025 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:57:59,026 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:57:59,026 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:57:59,027 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:57:59,027 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:57:59,027 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:57:59,027 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:57:59,027 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:57:59,027 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:57:59,027 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:57:59,028 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:57:59,028 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:57:59,028 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:57:59,028 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:57:59,028 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:57:59,028 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:57:59,028 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:57:59,028 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:57:59,030 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:57:59,030 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:57:59,030 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:57:59,031 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:57:59,031 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:57:59,032 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:57:59,032 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:57:59,032 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:57:59,032 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:57:59,033 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:57:59,033 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:57:59,033 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:57:59,033 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:57:59,033 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:57:59,033 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:57:59,034 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:57:59,034 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:57:59,034 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:57:59,034 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_62f685b6-4091-487c-a18c-bce36afa3312/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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7bfb32b49701ea1484553c69a9c6c976094bd0d4ca4d5ea9d4d30cdc2f2571dd [2024-11-28 03:57:59,423 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:57:59,433 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:57:59,436 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:57:59,438 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:57:59,438 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:57:59,440 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c [2024-11-28 03:58:02,842 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/data/d0c25c7f7/551a8b1c784646b79b39d751dd55772f/FLAG41f385fa6 [2024-11-28 03:58:03,173 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:58:03,174 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c [2024-11-28 03:58:03,187 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/data/d0c25c7f7/551a8b1c784646b79b39d751dd55772f/FLAG41f385fa6 [2024-11-28 03:58:03,205 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/data/d0c25c7f7/551a8b1c784646b79b39d751dd55772f [2024-11-28 03:58:03,208 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:58:03,209 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:58:03,211 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:58:03,211 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:58:03,217 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:58:03,218 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:03,219 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55fc6545 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03, skipping insertion in model container [2024-11-28 03:58:03,219 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:03,258 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:58:03,460 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_62f685b6-4091-487c-a18c-bce36afa3312/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c[1255,1268] [2024-11-28 03:58:03,705 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:58:03,718 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:58:03,732 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_62f685b6-4091-487c-a18c-bce36afa3312/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.vis_arrays_palu.c[1255,1268] [2024-11-28 03:58:03,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:58:03,887 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:58:03,891 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03 WrapperNode [2024-11-28 03:58:03,891 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:58:03,893 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:58:03,894 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:58:03,894 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:58:03,905 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:03,941 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,153 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 1243 [2024-11-28 03:58:04,156 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:58:04,157 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:58:04,157 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:58:04,157 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:58:04,169 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,169 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,205 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,355 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 03:58:04,355 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,355 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,410 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,423 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,466 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,477 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,542 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:58:04,543 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:58:04,543 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:58:04,543 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:58:04,545 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (1/1) ... [2024-11-28 03:58:04,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:58:04,568 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:04,585 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:58:04,593 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:58:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:58:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:58:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:58:04,622 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:58:04,868 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:58:04,871 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:58:07,533 INFO L? ?]: Removed 682 outVars from TransFormulas that were not future-live. [2024-11-28 03:58:07,533 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:58:07,568 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:58:07,569 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 03:58:07,569 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:58:07 BoogieIcfgContainer [2024-11-28 03:58:07,569 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:58:07,577 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:58:07,577 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:58:07,584 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:58:07,584 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:58:03" (1/3) ... [2024-11-28 03:58:07,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4735b325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:58:07, skipping insertion in model container [2024-11-28 03:58:07,585 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:58:03" (2/3) ... [2024-11-28 03:58:07,585 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4735b325 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:58:07, skipping insertion in model container [2024-11-28 03:58:07,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:58:07" (3/3) ... [2024-11-28 03:58:07,587 INFO L128 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.vis_arrays_palu.c [2024-11-28 03:58:07,612 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:58:07,617 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG btor2c-lazyMod.vis_arrays_palu.c that has 1 procedures, 362 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 03:58:07,723 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:58:07,738 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;@b03e750, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:58:07,739 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:58:07,745 INFO L276 IsEmpty]: Start isEmpty. Operand has 362 states, 360 states have (on average 1.4972222222222222) internal successors, (539), 361 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:07,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-28 03:58:07,754 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:07,754 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:07,755 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:07,761 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:07,761 INFO L85 PathProgramCache]: Analyzing trace with hash 596137605, now seen corresponding path program 1 times [2024-11-28 03:58:07,773 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:07,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611818997] [2024-11-28 03:58:07,774 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:07,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:08,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:09,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:09,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:09,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611818997] [2024-11-28 03:58:09,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611818997] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:09,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:09,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:58:09,298 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297225858] [2024-11-28 03:58:09,299 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:09,305 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:09,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:09,336 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:09,337 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:09,342 INFO L87 Difference]: Start difference. First operand has 362 states, 360 states have (on average 1.4972222222222222) internal successors, (539), 361 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:09,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:09,496 INFO L93 Difference]: Finished difference Result 681 states and 1017 transitions. [2024-11-28 03:58:09,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:09,502 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 51 [2024-11-28 03:58:09,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:09,522 INFO L225 Difference]: With dead ends: 681 [2024-11-28 03:58:09,522 INFO L226 Difference]: Without dead ends: 361 [2024-11-28 03:58:09,529 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:09,536 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1060 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1593 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:09,537 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1593 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:58:09,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 361 states. [2024-11-28 03:58:09,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 361 to 361. [2024-11-28 03:58:09,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 361 states, 360 states have (on average 1.4916666666666667) internal successors, (537), 360 states have internal predecessors, (537), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:09,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 361 states to 361 states and 537 transitions. [2024-11-28 03:58:09,636 INFO L78 Accepts]: Start accepts. Automaton has 361 states and 537 transitions. Word has length 51 [2024-11-28 03:58:09,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:09,636 INFO L471 AbstractCegarLoop]: Abstraction has 361 states and 537 transitions. [2024-11-28 03:58:09,637 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 4 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:09,637 INFO L276 IsEmpty]: Start isEmpty. Operand 361 states and 537 transitions. [2024-11-28 03:58:09,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-28 03:58:09,638 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:09,639 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:09,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-28 03:58:09,639 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:09,644 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:09,644 INFO L85 PathProgramCache]: Analyzing trace with hash 1302092023, now seen corresponding path program 1 times [2024-11-28 03:58:09,644 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:09,644 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1428114770] [2024-11-28 03:58:09,644 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:09,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:09,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:10,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:10,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:10,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1428114770] [2024-11-28 03:58:10,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1428114770] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:10,101 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:10,102 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:58:10,102 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756003703] [2024-11-28 03:58:10,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:10,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:10,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:10,104 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:10,104 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:10,104 INFO L87 Difference]: Start difference. First operand 361 states and 537 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:10,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:10,163 INFO L93 Difference]: Finished difference Result 682 states and 1015 transitions. [2024-11-28 03:58:10,164 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:10,164 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2024-11-28 03:58:10,164 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:10,166 INFO L225 Difference]: With dead ends: 682 [2024-11-28 03:58:10,166 INFO L226 Difference]: Without dead ends: 363 [2024-11-28 03:58:10,167 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:10,168 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:10,169 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1589 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:58:10,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-28 03:58:10,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 363. [2024-11-28 03:58:10,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 363 states, 362 states have (on average 1.488950276243094) internal successors, (539), 362 states have internal predecessors, (539), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:10,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 363 states to 363 states and 539 transitions. [2024-11-28 03:58:10,204 INFO L78 Accepts]: Start accepts. Automaton has 363 states and 539 transitions. Word has length 52 [2024-11-28 03:58:10,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:10,205 INFO L471 AbstractCegarLoop]: Abstraction has 363 states and 539 transitions. [2024-11-28 03:58:10,205 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 4 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:10,205 INFO L276 IsEmpty]: Start isEmpty. Operand 363 states and 539 transitions. [2024-11-28 03:58:10,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-28 03:58:10,211 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:10,211 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:10,211 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 03:58:10,211 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:10,212 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:10,212 INFO L85 PathProgramCache]: Analyzing trace with hash 612181406, now seen corresponding path program 1 times [2024-11-28 03:58:10,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:10,213 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159469849] [2024-11-28 03:58:10,213 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:10,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:10,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:11,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:11,073 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:11,074 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159469849] [2024-11-28 03:58:11,074 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1159469849] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:11,074 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:11,074 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 03:58:11,074 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742494677] [2024-11-28 03:58:11,074 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:11,074 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 03:58:11,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:11,075 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 03:58:11,075 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:11,077 INFO L87 Difference]: Start difference. First operand 363 states and 539 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:11,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:11,150 INFO L93 Difference]: Finished difference Result 686 states and 1019 transitions. [2024-11-28 03:58:11,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 03:58:11,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 53 [2024-11-28 03:58:11,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:11,155 INFO L225 Difference]: With dead ends: 686 [2024-11-28 03:58:11,155 INFO L226 Difference]: Without dead ends: 365 [2024-11-28 03:58:11,158 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 03:58:11,159 INFO L435 NwaCegarLoop]: 533 mSDtfsCounter, 0 mSDsluCounter, 1056 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1589 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:11,160 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1589 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:58:11,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 365 states. [2024-11-28 03:58:11,180 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 365 to 365. [2024-11-28 03:58:11,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365 states, 364 states have (on average 1.4862637362637363) internal successors, (541), 364 states have internal predecessors, (541), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:11,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365 states to 365 states and 541 transitions. [2024-11-28 03:58:11,187 INFO L78 Accepts]: Start accepts. Automaton has 365 states and 541 transitions. Word has length 53 [2024-11-28 03:58:11,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:11,187 INFO L471 AbstractCegarLoop]: Abstraction has 365 states and 541 transitions. [2024-11-28 03:58:11,187 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:11,187 INFO L276 IsEmpty]: Start isEmpty. Operand 365 states and 541 transitions. [2024-11-28 03:58:11,192 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-28 03:58:11,192 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:11,192 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:11,193 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 03:58:11,193 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:11,193 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:11,193 INFO L85 PathProgramCache]: Analyzing trace with hash -1588325794, now seen corresponding path program 1 times [2024-11-28 03:58:11,194 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:11,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363149765] [2024-11-28 03:58:11,194 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:11,194 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:11,648 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:11,648 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:11,648 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363149765] [2024-11-28 03:58:11,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363149765] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:11,649 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:11,649 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:11,649 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890368806] [2024-11-28 03:58:11,649 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:11,649 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:11,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:11,650 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:11,650 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:11,650 INFO L87 Difference]: Start difference. First operand 365 states and 541 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:11,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:11,749 INFO L93 Difference]: Finished difference Result 718 states and 1065 transitions. [2024-11-28 03:58:11,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:11,750 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 54 [2024-11-28 03:58:11,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:11,752 INFO L225 Difference]: With dead ends: 718 [2024-11-28 03:58:11,752 INFO L226 Difference]: Without dead ends: 395 [2024-11-28 03:58:11,753 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:11,754 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 28 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:11,755 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 2116 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:58:11,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2024-11-28 03:58:11,784 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 395. [2024-11-28 03:58:11,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 394 states have (on average 1.484771573604061) internal successors, (585), 394 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:11,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 585 transitions. [2024-11-28 03:58:11,791 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 585 transitions. Word has length 54 [2024-11-28 03:58:11,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:11,791 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 585 transitions. [2024-11-28 03:58:11,796 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 6 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:11,796 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 585 transitions. [2024-11-28 03:58:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-28 03:58:11,797 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:11,798 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:11,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 03:58:11,798 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:11,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:11,799 INFO L85 PathProgramCache]: Analyzing trace with hash 111431526, now seen corresponding path program 1 times [2024-11-28 03:58:11,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:11,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734702743] [2024-11-28 03:58:11,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:11,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:12,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:12,900 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:12,900 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734702743] [2024-11-28 03:58:12,900 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [734702743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:12,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:12,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:58:12,901 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [939319462] [2024-11-28 03:58:12,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:12,901 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:58:12,901 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:12,902 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:58:12,902 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:58:12,906 INFO L87 Difference]: Start difference. First operand 395 states and 585 transitions. Second operand has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:13,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:13,117 INFO L93 Difference]: Finished difference Result 758 states and 1123 transitions. [2024-11-28 03:58:13,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:58:13,118 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2024-11-28 03:58:13,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:13,122 INFO L225 Difference]: With dead ends: 758 [2024-11-28 03:58:13,124 INFO L226 Difference]: Without dead ends: 405 [2024-11-28 03:58:13,125 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:58:13,126 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 501 mSDsluCounter, 2088 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 501 SdHoareTripleChecker+Valid, 2614 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:13,128 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [501 Valid, 2614 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:58:13,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 405 states. [2024-11-28 03:58:13,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 405 to 401. [2024-11-28 03:58:13,149 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 401 states, 400 states have (on average 1.4825) internal successors, (593), 400 states have internal predecessors, (593), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:13,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 401 states to 401 states and 593 transitions. [2024-11-28 03:58:13,153 INFO L78 Accepts]: Start accepts. Automaton has 401 states and 593 transitions. Word has length 55 [2024-11-28 03:58:13,153 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:13,154 INFO L471 AbstractCegarLoop]: Abstraction has 401 states and 593 transitions. [2024-11-28 03:58:13,154 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.857142857142857) internal successors, (55), 7 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:13,154 INFO L276 IsEmpty]: Start isEmpty. Operand 401 states and 593 transitions. [2024-11-28 03:58:13,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:58:13,157 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:13,157 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:13,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 03:58:13,157 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:13,161 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:13,161 INFO L85 PathProgramCache]: Analyzing trace with hash 273603503, now seen corresponding path program 1 times [2024-11-28 03:58:13,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:13,162 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784507058] [2024-11-28 03:58:13,162 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:13,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:13,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:13,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:13,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:13,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784507058] [2024-11-28 03:58:13,985 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [784507058] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:13,985 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:13,985 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:58:13,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175374521] [2024-11-28 03:58:13,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:13,985 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:58:13,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:13,986 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:58:13,986 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:58:13,989 INFO L87 Difference]: Start difference. First operand 401 states and 593 transitions. Second operand has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:14,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:14,233 INFO L93 Difference]: Finished difference Result 782 states and 1158 transitions. [2024-11-28 03:58:14,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 03:58:14,237 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-28 03:58:14,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:14,239 INFO L225 Difference]: With dead ends: 782 [2024-11-28 03:58:14,243 INFO L226 Difference]: Without dead ends: 423 [2024-11-28 03:58:14,243 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:58:14,244 INFO L435 NwaCegarLoop]: 526 mSDtfsCounter, 515 mSDsluCounter, 2614 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 515 SdHoareTripleChecker+Valid, 3140 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:14,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [515 Valid, 3140 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:58:14,249 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 423 states. [2024-11-28 03:58:14,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 423 to 419. [2024-11-28 03:58:14,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 1.4760765550239234) internal successors, (617), 418 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:14,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 617 transitions. [2024-11-28 03:58:14,274 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 617 transitions. Word has length 56 [2024-11-28 03:58:14,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:14,275 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 617 transitions. [2024-11-28 03:58:14,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 7.0) internal successors, (56), 8 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:14,275 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 617 transitions. [2024-11-28 03:58:14,276 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-28 03:58:14,276 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:14,282 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:14,283 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 03:58:14,283 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:14,284 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:14,284 INFO L85 PathProgramCache]: Analyzing trace with hash 4551560, now seen corresponding path program 1 times [2024-11-28 03:58:14,284 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:14,284 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1534825239] [2024-11-28 03:58:14,284 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:14,284 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:14,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:15,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:15,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:15,165 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1534825239] [2024-11-28 03:58:15,165 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1534825239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:15,165 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:15,165 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:58:15,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754738222] [2024-11-28 03:58:15,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:15,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:58:15,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:15,167 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:58:15,167 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:58:15,167 INFO L87 Difference]: Start difference. First operand 419 states and 617 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:15,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:15,709 INFO L93 Difference]: Finished difference Result 810 states and 1191 transitions. [2024-11-28 03:58:15,710 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:58:15,710 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2024-11-28 03:58:15,710 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:15,713 INFO L225 Difference]: With dead ends: 810 [2024-11-28 03:58:15,713 INFO L226 Difference]: Without dead ends: 433 [2024-11-28 03:58:15,714 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:58:15,715 INFO L435 NwaCegarLoop]: 481 mSDtfsCounter, 495 mSDsluCounter, 1904 mSDsCounter, 0 mSdLazyCounter, 316 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 495 SdHoareTripleChecker+Valid, 2385 SdHoareTripleChecker+Invalid, 317 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 316 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:15,715 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [495 Valid, 2385 Invalid, 317 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 316 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:58:15,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 433 states. [2024-11-28 03:58:15,728 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 433 to 419. [2024-11-28 03:58:15,729 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 419 states, 418 states have (on average 1.4760765550239234) internal successors, (617), 418 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:15,732 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 419 states to 419 states and 617 transitions. [2024-11-28 03:58:15,732 INFO L78 Accepts]: Start accepts. Automaton has 419 states and 617 transitions. Word has length 56 [2024-11-28 03:58:15,733 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:15,733 INFO L471 AbstractCegarLoop]: Abstraction has 419 states and 617 transitions. [2024-11-28 03:58:15,733 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:15,733 INFO L276 IsEmpty]: Start isEmpty. Operand 419 states and 617 transitions. [2024-11-28 03:58:15,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2024-11-28 03:58:15,734 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:15,735 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:15,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 03:58:15,735 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:15,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:15,736 INFO L85 PathProgramCache]: Analyzing trace with hash 1213928041, now seen corresponding path program 1 times [2024-11-28 03:58:15,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:15,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662795308] [2024-11-28 03:58:15,736 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:15,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:15,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:16,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:16,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:16,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662795308] [2024-11-28 03:58:16,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1662795308] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:16,910 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:16,910 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 03:58:16,911 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2102707752] [2024-11-28 03:58:16,911 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:16,911 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:58:16,911 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:16,912 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:58:16,912 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:58:16,912 INFO L87 Difference]: Start difference. First operand 419 states and 617 transitions. Second operand has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:17,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:17,108 INFO L93 Difference]: Finished difference Result 804 states and 1184 transitions. [2024-11-28 03:58:17,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:58:17,109 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2024-11-28 03:58:17,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:17,112 INFO L225 Difference]: With dead ends: 804 [2024-11-28 03:58:17,112 INFO L226 Difference]: Without dead ends: 427 [2024-11-28 03:58:17,113 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:58:17,114 INFO L435 NwaCegarLoop]: 529 mSDtfsCounter, 528 mSDsluCounter, 1578 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 528 SdHoareTripleChecker+Valid, 2107 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:17,116 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [528 Valid, 2107 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:58:17,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-28 03:58:17,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 426. [2024-11-28 03:58:17,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 426 states, 425 states have (on average 1.4752941176470589) internal successors, (627), 425 states have internal predecessors, (627), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:17,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 627 transitions. [2024-11-28 03:58:17,135 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 627 transitions. Word has length 57 [2024-11-28 03:58:17,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:17,135 INFO L471 AbstractCegarLoop]: Abstraction has 426 states and 627 transitions. [2024-11-28 03:58:17,136 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 8.142857142857142) internal successors, (57), 7 states have internal predecessors, (57), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:17,136 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 627 transitions. [2024-11-28 03:58:17,137 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 03:58:17,138 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:17,138 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:17,138 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 03:58:17,138 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:17,139 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:17,139 INFO L85 PathProgramCache]: Analyzing trace with hash -1195833884, now seen corresponding path program 1 times [2024-11-28 03:58:17,139 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:17,139 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143492805] [2024-11-28 03:58:17,139 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:17,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:17,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:18,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:18,137 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:18,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143492805] [2024-11-28 03:58:18,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143492805] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:18,137 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:18,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:18,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237368691] [2024-11-28 03:58:18,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:18,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:18,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:18,138 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:18,138 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:18,143 INFO L87 Difference]: Start difference. First operand 426 states and 627 transitions. Second operand has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:18,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:18,323 INFO L93 Difference]: Finished difference Result 964 states and 1413 transitions. [2024-11-28 03:58:18,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:18,324 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-28 03:58:18,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:18,327 INFO L225 Difference]: With dead ends: 964 [2024-11-28 03:58:18,327 INFO L226 Difference]: Without dead ends: 580 [2024-11-28 03:58:18,328 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:58:18,329 INFO L435 NwaCegarLoop]: 522 mSDtfsCounter, 793 mSDsluCounter, 1038 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 793 SdHoareTripleChecker+Valid, 1560 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:18,329 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [793 Valid, 1560 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:58:18,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2024-11-28 03:58:18,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 497. [2024-11-28 03:58:18,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 497 states, 496 states have (on average 1.469758064516129) internal successors, (729), 496 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:18,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 729 transitions. [2024-11-28 03:58:18,354 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 729 transitions. Word has length 58 [2024-11-28 03:58:18,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:18,356 INFO L471 AbstractCegarLoop]: Abstraction has 497 states and 729 transitions. [2024-11-28 03:58:18,356 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 11.6) internal successors, (58), 5 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:18,356 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 729 transitions. [2024-11-28 03:58:18,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 03:58:18,357 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:18,358 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:18,358 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 03:58:18,359 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:18,359 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:18,359 INFO L85 PathProgramCache]: Analyzing trace with hash -2071929649, now seen corresponding path program 1 times [2024-11-28 03:58:18,360 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:18,360 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [311031479] [2024-11-28 03:58:18,360 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:18,360 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:18,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:19,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:19,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [311031479] [2024-11-28 03:58:19,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [311031479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:19,147 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:19,147 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:19,148 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [777037557] [2024-11-28 03:58:19,148 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:19,148 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:19,148 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:19,149 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:19,149 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:19,149 INFO L87 Difference]: Start difference. First operand 497 states and 729 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:19,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:19,260 INFO L93 Difference]: Finished difference Result 908 states and 1332 transitions. [2024-11-28 03:58:19,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:58:19,261 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-28 03:58:19,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:19,264 INFO L225 Difference]: With dead ends: 908 [2024-11-28 03:58:19,264 INFO L226 Difference]: Without dead ends: 495 [2024-11-28 03:58:19,265 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:58:19,266 INFO L435 NwaCegarLoop]: 532 mSDtfsCounter, 523 mSDsluCounter, 1584 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 2116 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:19,267 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 2116 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:58:19,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 495 states. [2024-11-28 03:58:19,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 495 to 495. [2024-11-28 03:58:19,281 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 495 states, 494 states have (on average 1.4676113360323886) internal successors, (725), 494 states have internal predecessors, (725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:19,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 495 states to 495 states and 725 transitions. [2024-11-28 03:58:19,285 INFO L78 Accepts]: Start accepts. Automaton has 495 states and 725 transitions. Word has length 58 [2024-11-28 03:58:19,285 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:19,285 INFO L471 AbstractCegarLoop]: Abstraction has 495 states and 725 transitions. [2024-11-28 03:58:19,285 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:19,286 INFO L276 IsEmpty]: Start isEmpty. Operand 495 states and 725 transitions. [2024-11-28 03:58:19,286 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-28 03:58:19,286 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:19,287 INFO L218 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:19,287 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 03:58:19,287 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:19,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:19,288 INFO L85 PathProgramCache]: Analyzing trace with hash 1833886746, now seen corresponding path program 1 times [2024-11-28 03:58:19,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:19,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [675468641] [2024-11-28 03:58:19,288 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:19,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:19,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:19,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:19,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:19,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [675468641] [2024-11-28 03:58:19,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [675468641] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:19,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:19,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:19,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [736879891] [2024-11-28 03:58:19,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:19,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:19,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:19,668 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:19,668 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:19,668 INFO L87 Difference]: Start difference. First operand 495 states and 725 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:20,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:20,203 INFO L93 Difference]: Finished difference Result 1171 states and 1719 transitions. [2024-11-28 03:58:20,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:20,204 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2024-11-28 03:58:20,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:20,208 INFO L225 Difference]: With dead ends: 1171 [2024-11-28 03:58:20,208 INFO L226 Difference]: Without dead ends: 726 [2024-11-28 03:58:20,209 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:58:20,211 INFO L435 NwaCegarLoop]: 525 mSDtfsCounter, 1379 mSDsluCounter, 1418 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1379 SdHoareTripleChecker+Valid, 1943 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:20,212 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1379 Valid, 1943 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 03:58:20,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 726 states. [2024-11-28 03:58:20,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 726 to 460. [2024-11-28 03:58:20,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 460 states, 459 states have (on average 1.4662309368191722) internal successors, (673), 459 states have internal predecessors, (673), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:20,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 460 states to 460 states and 673 transitions. [2024-11-28 03:58:20,234 INFO L78 Accepts]: Start accepts. Automaton has 460 states and 673 transitions. Word has length 58 [2024-11-28 03:58:20,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:20,234 INFO L471 AbstractCegarLoop]: Abstraction has 460 states and 673 transitions. [2024-11-28 03:58:20,234 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 6 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:20,234 INFO L276 IsEmpty]: Start isEmpty. Operand 460 states and 673 transitions. [2024-11-28 03:58:20,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2024-11-28 03:58:20,238 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:20,239 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:20,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-28 03:58:20,240 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:20,241 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:20,241 INFO L85 PathProgramCache]: Analyzing trace with hash 321816023, now seen corresponding path program 1 times [2024-11-28 03:58:20,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:20,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2054823694] [2024-11-28 03:58:20,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:20,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:20,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:21,839 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:21,840 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:21,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2054823694] [2024-11-28 03:58:21,841 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2054823694] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:58:21,841 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [605370140] [2024-11-28 03:58:21,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:21,841 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:21,841 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:21,848 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:21,850 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:58:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:22,817 INFO L256 TraceCheckSpWp]: Trace formula consists of 1435 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-28 03:58:22,839 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:23,550 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:23,550 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:24,418 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:24,418 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [605370140] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:58:24,419 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:58:24,419 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 10 [2024-11-28 03:58:24,419 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982581128] [2024-11-28 03:58:24,419 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:58:24,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:58:24,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:24,421 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:58:24,422 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:58:24,422 INFO L87 Difference]: Start difference. First operand 460 states and 673 transitions. Second operand has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:25,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:25,147 INFO L93 Difference]: Finished difference Result 1125 states and 1646 transitions. [2024-11-28 03:58:25,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:58:25,148 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 217 [2024-11-28 03:58:25,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:25,151 INFO L225 Difference]: With dead ends: 1125 [2024-11-28 03:58:25,151 INFO L226 Difference]: Without dead ends: 477 [2024-11-28 03:58:25,152 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 442 GetRequests, 430 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:58:25,153 INFO L435 NwaCegarLoop]: 543 mSDtfsCounter, 2116 mSDsluCounter, 1407 mSDsCounter, 0 mSdLazyCounter, 297 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 1950 SdHoareTripleChecker+Invalid, 324 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 297 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:25,153 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2116 Valid, 1950 Invalid, 324 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 297 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:58:25,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 477 states. [2024-11-28 03:58:25,166 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 477 to 475. [2024-11-28 03:58:25,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475 states, 474 states have (on average 1.4535864978902953) internal successors, (689), 474 states have internal predecessors, (689), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:25,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 689 transitions. [2024-11-28 03:58:25,171 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 689 transitions. Word has length 217 [2024-11-28 03:58:25,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:25,171 INFO L471 AbstractCegarLoop]: Abstraction has 475 states and 689 transitions. [2024-11-28 03:58:25,172 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 27.0) internal successors, (270), 10 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:25,172 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 689 transitions. [2024-11-28 03:58:25,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 219 [2024-11-28 03:58:25,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:25,176 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:25,192 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 03:58:25,380 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:25,381 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:25,381 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:25,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1759421432, now seen corresponding path program 1 times [2024-11-28 03:58:25,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:25,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670617577] [2024-11-28 03:58:25,382 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:25,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:26,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:27,141 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:27,142 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:27,143 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670617577] [2024-11-28 03:58:27,143 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670617577] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:27,143 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:27,143 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 03:58:27,143 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984755779] [2024-11-28 03:58:27,144 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:27,144 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:58:27,144 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:27,145 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:58:27,145 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 03:58:27,146 INFO L87 Difference]: Start difference. First operand 475 states and 689 transitions. Second operand has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:27,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:27,741 INFO L93 Difference]: Finished difference Result 1156 states and 1689 transitions. [2024-11-28 03:58:27,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:58:27,742 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 218 [2024-11-28 03:58:27,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:27,747 INFO L225 Difference]: With dead ends: 1156 [2024-11-28 03:58:27,748 INFO L226 Difference]: Without dead ends: 773 [2024-11-28 03:58:27,749 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:58:27,749 INFO L435 NwaCegarLoop]: 448 mSDtfsCounter, 1528 mSDsluCounter, 979 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1528 SdHoareTripleChecker+Valid, 1427 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:27,750 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1528 Valid, 1427 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:58:27,753 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 773 states. [2024-11-28 03:58:27,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 773 to 727. [2024-11-28 03:58:27,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 726 states have (on average 1.4683195592286502) internal successors, (1066), 726 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:27,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1066 transitions. [2024-11-28 03:58:27,780 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1066 transitions. Word has length 218 [2024-11-28 03:58:27,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:27,781 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1066 transitions. [2024-11-28 03:58:27,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.333333333333336) internal successors, (218), 6 states have internal predecessors, (218), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:27,781 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1066 transitions. [2024-11-28 03:58:27,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2024-11-28 03:58:27,785 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:27,786 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:27,786 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-28 03:58:27,787 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:27,787 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:27,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1060257666, now seen corresponding path program 1 times [2024-11-28 03:58:27,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:27,787 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1674641950] [2024-11-28 03:58:27,788 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:27,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:28,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:29,464 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:29,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:29,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1674641950] [2024-11-28 03:58:29,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1674641950] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:29,465 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:29,465 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:29,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91080627] [2024-11-28 03:58:29,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:29,466 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:29,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:29,466 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:29,467 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:29,467 INFO L87 Difference]: Start difference. First operand 727 states and 1066 transitions. Second operand has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:30,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:30,133 INFO L93 Difference]: Finished difference Result 1360 states and 2003 transitions. [2024-11-28 03:58:30,133 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:30,134 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 219 [2024-11-28 03:58:30,134 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:30,138 INFO L225 Difference]: With dead ends: 1360 [2024-11-28 03:58:30,138 INFO L226 Difference]: Without dead ends: 727 [2024-11-28 03:58:30,139 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:58:30,140 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 599 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 480 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 599 SdHoareTripleChecker+Valid, 1125 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 480 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:30,140 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [599 Valid, 1125 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 480 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:58:30,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 727 states. [2024-11-28 03:58:30,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 727 to 727. [2024-11-28 03:58:30,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 727 states, 726 states have (on average 1.4669421487603307) internal successors, (1065), 726 states have internal predecessors, (1065), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:30,168 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 727 states to 727 states and 1065 transitions. [2024-11-28 03:58:30,169 INFO L78 Accepts]: Start accepts. Automaton has 727 states and 1065 transitions. Word has length 219 [2024-11-28 03:58:30,169 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:30,169 INFO L471 AbstractCegarLoop]: Abstraction has 727 states and 1065 transitions. [2024-11-28 03:58:30,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 43.8) internal successors, (219), 5 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:30,172 INFO L276 IsEmpty]: Start isEmpty. Operand 727 states and 1065 transitions. [2024-11-28 03:58:30,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2024-11-28 03:58:30,175 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:30,175 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:30,175 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 03:58:30,176 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:30,176 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:30,176 INFO L85 PathProgramCache]: Analyzing trace with hash -1786280910, now seen corresponding path program 1 times [2024-11-28 03:58:30,176 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:30,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599020075] [2024-11-28 03:58:30,176 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:30,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:30,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:31,698 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:31,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:31,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599020075] [2024-11-28 03:58:31,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599020075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:31,699 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:31,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 03:58:31,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1008606304] [2024-11-28 03:58:31,699 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:31,700 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 03:58:31,700 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:31,700 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 03:58:31,701 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 03:58:31,701 INFO L87 Difference]: Start difference. First operand 727 states and 1065 transitions. Second operand has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:32,565 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:32,566 INFO L93 Difference]: Finished difference Result 1112 states and 1631 transitions. [2024-11-28 03:58:32,566 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 03:58:32,567 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 220 [2024-11-28 03:58:32,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:32,571 INFO L225 Difference]: With dead ends: 1112 [2024-11-28 03:58:32,571 INFO L226 Difference]: Without dead ends: 729 [2024-11-28 03:58:32,572 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 03:58:32,573 INFO L435 NwaCegarLoop]: 376 mSDtfsCounter, 1223 mSDsluCounter, 748 mSDsCounter, 0 mSdLazyCounter, 481 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1223 SdHoareTripleChecker+Valid, 1124 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 481 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:32,573 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1223 Valid, 1124 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 481 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:58:32,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 729 states. [2024-11-28 03:58:32,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 729 to 728. [2024-11-28 03:58:32,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 728 states, 727 states have (on average 1.4662998624484183) internal successors, (1066), 727 states have internal predecessors, (1066), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:32,600 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 1066 transitions. [2024-11-28 03:58:32,600 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 1066 transitions. Word has length 220 [2024-11-28 03:58:32,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:32,601 INFO L471 AbstractCegarLoop]: Abstraction has 728 states and 1066 transitions. [2024-11-28 03:58:32,601 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 44.0) internal successors, (220), 5 states have internal predecessors, (220), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:32,601 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 1066 transitions. [2024-11-28 03:58:32,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2024-11-28 03:58:32,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:32,605 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:32,606 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 03:58:32,606 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:32,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:32,606 INFO L85 PathProgramCache]: Analyzing trace with hash -1803128783, now seen corresponding path program 1 times [2024-11-28 03:58:32,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:32,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655706264] [2024-11-28 03:58:32,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:32,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:33,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:34,412 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:34,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:34,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655706264] [2024-11-28 03:58:34,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1655706264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:34,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:34,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:58:34,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522003975] [2024-11-28 03:58:34,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:34,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:58:34,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:34,415 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:58:34,415 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:58:34,415 INFO L87 Difference]: Start difference. First operand 728 states and 1066 transitions. Second operand has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:36,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:36,060 INFO L93 Difference]: Finished difference Result 1481 states and 2173 transitions. [2024-11-28 03:58:36,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:58:36,061 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 221 [2024-11-28 03:58:36,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:36,067 INFO L225 Difference]: With dead ends: 1481 [2024-11-28 03:58:36,067 INFO L226 Difference]: Without dead ends: 1098 [2024-11-28 03:58:36,068 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:58:36,069 INFO L435 NwaCegarLoop]: 711 mSDtfsCounter, 814 mSDsluCounter, 2685 mSDsCounter, 0 mSdLazyCounter, 1324 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 814 SdHoareTripleChecker+Valid, 3396 SdHoareTripleChecker+Invalid, 1325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1324 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:36,069 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [814 Valid, 3396 Invalid, 1325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1324 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 03:58:36,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1098 states. [2024-11-28 03:58:36,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1098 to 732. [2024-11-28 03:58:36,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.4637482900136798) internal successors, (1070), 731 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:36,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2024-11-28 03:58:36,100 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 221 [2024-11-28 03:58:36,100 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:36,101 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2024-11-28 03:58:36,101 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.625) internal successors, (221), 8 states have internal predecessors, (221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:36,101 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2024-11-28 03:58:36,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-28 03:58:36,104 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:36,105 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:36,105 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-28 03:58:36,105 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:36,106 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:36,106 INFO L85 PathProgramCache]: Analyzing trace with hash -570264786, now seen corresponding path program 1 times [2024-11-28 03:58:36,106 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:36,106 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1982842355] [2024-11-28 03:58:36,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:36,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:36,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:37,922 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:37,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:37,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1982842355] [2024-11-28 03:58:37,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1982842355] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:58:37,924 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 03:58:37,924 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-11-28 03:58:37,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677539668] [2024-11-28 03:58:37,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:58:37,926 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:58:37,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:37,927 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:58:37,928 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:58:37,929 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:39,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:39,685 INFO L93 Difference]: Finished difference Result 1489 states and 2181 transitions. [2024-11-28 03:58:39,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:58:39,686 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-28 03:58:39,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:39,693 INFO L225 Difference]: With dead ends: 1489 [2024-11-28 03:58:39,693 INFO L226 Difference]: Without dead ends: 1102 [2024-11-28 03:58:39,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-28 03:58:39,695 INFO L435 NwaCegarLoop]: 712 mSDtfsCounter, 809 mSDsluCounter, 2689 mSDsCounter, 0 mSdLazyCounter, 1341 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 809 SdHoareTripleChecker+Valid, 3401 SdHoareTripleChecker+Invalid, 1342 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:39,696 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [809 Valid, 3401 Invalid, 1342 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1341 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 03:58:39,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1102 states. [2024-11-28 03:58:39,732 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1102 to 732. [2024-11-28 03:58:39,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.4637482900136798) internal successors, (1070), 731 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:39,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2024-11-28 03:58:39,740 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 222 [2024-11-28 03:58:39,740 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:39,740 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2024-11-28 03:58:39,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 27.75) internal successors, (222), 8 states have internal predecessors, (222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:39,741 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2024-11-28 03:58:39,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 223 [2024-11-28 03:58:39,746 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:39,746 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:39,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-28 03:58:39,748 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:39,749 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:39,749 INFO L85 PathProgramCache]: Analyzing trace with hash -1842957116, now seen corresponding path program 1 times [2024-11-28 03:58:39,749 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:39,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325826461] [2024-11-28 03:58:39,750 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:39,750 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:40,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:41,927 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:58:41,928 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:41,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325826461] [2024-11-28 03:58:41,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [325826461] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:58:41,928 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [966526789] [2024-11-28 03:58:41,929 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:41,929 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:41,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:41,931 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:41,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:58:43,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:43,290 INFO L256 TraceCheckSpWp]: Trace formula consists of 1444 conjuncts, 53 conjuncts are in the unsatisfiable core [2024-11-28 03:58:43,315 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:44,566 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 22 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:44,567 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:45,775 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:45,776 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [966526789] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:58:45,776 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:58:45,776 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 12, 8] total 19 [2024-11-28 03:58:45,776 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827045503] [2024-11-28 03:58:45,776 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:58:45,778 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-28 03:58:45,778 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:45,780 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-28 03:58:45,781 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=264, Unknown=0, NotChecked=0, Total=342 [2024-11-28 03:58:45,781 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand has 19 states, 19 states have (on average 29.68421052631579) internal successors, (564), 19 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:47,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:47,848 INFO L93 Difference]: Finished difference Result 1495 states and 2198 transitions. [2024-11-28 03:58:47,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:58:47,849 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 29.68421052631579) internal successors, (564), 19 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 222 [2024-11-28 03:58:47,850 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:47,854 INFO L225 Difference]: With dead ends: 1495 [2024-11-28 03:58:47,854 INFO L226 Difference]: Without dead ends: 1108 [2024-11-28 03:58:47,855 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 456 GetRequests, 431 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 152 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=156, Invalid=546, Unknown=0, NotChecked=0, Total=702 [2024-11-28 03:58:47,856 INFO L435 NwaCegarLoop]: 368 mSDtfsCounter, 1700 mSDsluCounter, 3657 mSDsCounter, 0 mSdLazyCounter, 1859 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1700 SdHoareTripleChecker+Valid, 4025 SdHoareTripleChecker+Invalid, 1861 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 1859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:47,857 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1700 Valid, 4025 Invalid, 1861 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 1859 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 03:58:47,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1108 states. [2024-11-28 03:58:47,879 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1108 to 732. [2024-11-28 03:58:47,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 732 states, 731 states have (on average 1.4637482900136798) internal successors, (1070), 731 states have internal predecessors, (1070), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:47,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 732 states to 732 states and 1070 transitions. [2024-11-28 03:58:47,884 INFO L78 Accepts]: Start accepts. Automaton has 732 states and 1070 transitions. Word has length 222 [2024-11-28 03:58:47,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:47,885 INFO L471 AbstractCegarLoop]: Abstraction has 732 states and 1070 transitions. [2024-11-28 03:58:47,886 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 29.68421052631579) internal successors, (564), 19 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:47,886 INFO L276 IsEmpty]: Start isEmpty. Operand 732 states and 1070 transitions. [2024-11-28 03:58:47,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 224 [2024-11-28 03:58:47,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:47,890 INFO L218 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:58:47,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:58:48,095 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 03:58:48,095 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:48,096 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:48,096 INFO L85 PathProgramCache]: Analyzing trace with hash 323286701, now seen corresponding path program 1 times [2024-11-28 03:58:48,096 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:48,096 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27104570] [2024-11-28 03:58:48,097 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:48,097 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:48,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:49,213 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:49,213 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:49,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27104570] [2024-11-28 03:58:49,213 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27104570] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:58:49,213 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1189769513] [2024-11-28 03:58:49,214 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:49,214 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:49,214 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:49,216 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:49,221 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:58:50,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:50,253 INFO L256 TraceCheckSpWp]: Trace formula consists of 1447 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:58:50,262 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:51,233 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:51,233 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:52,123 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:52,124 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1189769513] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:58:52,124 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:58:52,124 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 18 [2024-11-28 03:58:52,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286728538] [2024-11-28 03:58:52,125 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:58:52,127 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 03:58:52,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:52,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 03:58:52,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:58:52,130 INFO L87 Difference]: Start difference. First operand 732 states and 1070 transitions. Second operand has 18 states, 18 states have (on average 33.611111111111114) internal successors, (605), 18 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:53,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:58:53,727 INFO L93 Difference]: Finished difference Result 1485 states and 2163 transitions. [2024-11-28 03:58:53,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:58:53,728 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 33.611111111111114) internal successors, (605), 18 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 223 [2024-11-28 03:58:53,728 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:58:53,732 INFO L225 Difference]: With dead ends: 1485 [2024-11-28 03:58:53,732 INFO L226 Difference]: Without dead ends: 799 [2024-11-28 03:58:53,734 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 461 GetRequests, 438 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=127, Invalid=473, Unknown=0, NotChecked=0, Total=600 [2024-11-28 03:58:53,734 INFO L435 NwaCegarLoop]: 374 mSDtfsCounter, 4944 mSDsluCounter, 2990 mSDsCounter, 0 mSdLazyCounter, 1448 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4944 SdHoareTripleChecker+Valid, 3364 SdHoareTripleChecker+Invalid, 1453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 1448 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-28 03:58:53,735 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4944 Valid, 3364 Invalid, 1453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 1448 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-28 03:58:53,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 799 states. [2024-11-28 03:58:53,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 799 to 746. [2024-11-28 03:58:53,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 746 states, 745 states have (on average 1.457718120805369) internal successors, (1086), 745 states have internal predecessors, (1086), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:53,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 746 states to 746 states and 1086 transitions. [2024-11-28 03:58:53,794 INFO L78 Accepts]: Start accepts. Automaton has 746 states and 1086 transitions. Word has length 223 [2024-11-28 03:58:53,794 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:58:53,794 INFO L471 AbstractCegarLoop]: Abstraction has 746 states and 1086 transitions. [2024-11-28 03:58:53,795 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 33.611111111111114) internal successors, (605), 18 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:58:53,795 INFO L276 IsEmpty]: Start isEmpty. Operand 746 states and 1086 transitions. [2024-11-28 03:58:53,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 385 [2024-11-28 03:58:53,806 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:58:53,806 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:58:53,824 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 03:58:54,007 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:54,008 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:58:54,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:58:54,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1493491252, now seen corresponding path program 1 times [2024-11-28 03:58:54,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:58:54,011 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [736235696] [2024-11-28 03:58:54,012 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:54,013 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:58:55,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:57,195 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 185 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:57,195 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:58:57,195 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [736235696] [2024-11-28 03:58:57,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [736235696] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:58:57,196 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1793966574] [2024-11-28 03:58:57,197 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:58:57,197 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:58:57,197 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:58:57,202 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:58:57,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:58:58,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:58:58,605 INFO L256 TraceCheckSpWp]: Trace formula consists of 2480 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-28 03:58:58,616 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:58:59,734 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 185 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:58:59,734 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:00,999 INFO L134 CoverageAnalysis]: Checked inductivity of 215 backedges. 185 proven. 30 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:00,999 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1793966574] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:00,999 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:59:00,999 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2024-11-28 03:59:00,999 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1823996977] [2024-11-28 03:59:00,999 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:01,001 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:59:01,001 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:01,002 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:59:01,002 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:59:01,002 INFO L87 Difference]: Start difference. First operand 746 states and 1086 transitions. Second operand has 15 states, 15 states have (on average 40.13333333333333) internal successors, (602), 15 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:01,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:01,792 INFO L93 Difference]: Finished difference Result 1187 states and 1727 transitions. [2024-11-28 03:59:01,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:59:01,793 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 40.13333333333333) internal successors, (602), 15 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 384 [2024-11-28 03:59:01,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:01,796 INFO L225 Difference]: With dead ends: 1187 [2024-11-28 03:59:01,797 INFO L226 Difference]: Without dead ends: 800 [2024-11-28 03:59:01,798 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 782 GetRequests, 761 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=109, Invalid=397, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:59:01,799 INFO L435 NwaCegarLoop]: 443 mSDtfsCounter, 3252 mSDsluCounter, 3334 mSDsCounter, 0 mSdLazyCounter, 762 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3252 SdHoareTripleChecker+Valid, 3777 SdHoareTripleChecker+Invalid, 764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 762 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:01,799 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3252 Valid, 3777 Invalid, 764 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 762 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:59:01,801 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 800 states. [2024-11-28 03:59:01,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 800 to 798. [2024-11-28 03:59:01,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 798 states, 797 states have (on average 1.4504391468005018) internal successors, (1156), 797 states have internal predecessors, (1156), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:01,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 798 states to 798 states and 1156 transitions. [2024-11-28 03:59:01,826 INFO L78 Accepts]: Start accepts. Automaton has 798 states and 1156 transitions. Word has length 384 [2024-11-28 03:59:01,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:01,827 INFO L471 AbstractCegarLoop]: Abstraction has 798 states and 1156 transitions. [2024-11-28 03:59:01,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 40.13333333333333) internal successors, (602), 15 states have internal predecessors, (602), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:01,828 INFO L276 IsEmpty]: Start isEmpty. Operand 798 states and 1156 transitions. [2024-11-28 03:59:01,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-28 03:59:01,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:01,836 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:59:01,856 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:02,037 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:02,038 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:02,039 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:02,039 INFO L85 PathProgramCache]: Analyzing trace with hash 585240963, now seen corresponding path program 1 times [2024-11-28 03:59:02,039 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:02,040 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904605050] [2024-11-28 03:59:02,040 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:02,041 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:03,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:04,561 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 185 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:04,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:04,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1904605050] [2024-11-28 03:59:04,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1904605050] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:04,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1277821126] [2024-11-28 03:59:04,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:04,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:04,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:04,564 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:04,568 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:59:06,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:06,409 INFO L256 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-28 03:59:06,416 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:07,729 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 216 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:07,730 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:59:07,730 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1277821126] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:59:07,730 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:59:07,730 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 11 [2024-11-28 03:59:07,730 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1811960894] [2024-11-28 03:59:07,731 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:59:07,731 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:59:07,731 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:07,732 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:59:07,732 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:59:07,733 INFO L87 Difference]: Start difference. First operand 798 states and 1156 transitions. Second operand has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:08,626 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:08,626 INFO L93 Difference]: Finished difference Result 1545 states and 2247 transitions. [2024-11-28 03:59:08,626 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:59:08,627 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2024-11-28 03:59:08,627 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:08,630 INFO L225 Difference]: With dead ends: 1545 [2024-11-28 03:59:08,631 INFO L226 Difference]: Without dead ends: 1158 [2024-11-28 03:59:08,632 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 392 GetRequests, 383 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-11-28 03:59:08,632 INFO L435 NwaCegarLoop]: 383 mSDtfsCounter, 964 mSDsluCounter, 1136 mSDsCounter, 0 mSdLazyCounter, 615 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 964 SdHoareTripleChecker+Valid, 1519 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 615 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:08,633 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [964 Valid, 1519 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 615 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:59:08,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1158 states. [2024-11-28 03:59:08,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1158 to 1156. [2024-11-28 03:59:08,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1156 states, 1155 states have (on average 1.451082251082251) internal successors, (1676), 1155 states have internal predecessors, (1676), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:08,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1156 states to 1156 states and 1676 transitions. [2024-11-28 03:59:08,664 INFO L78 Accepts]: Start accepts. Automaton has 1156 states and 1676 transitions. Word has length 385 [2024-11-28 03:59:08,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:08,666 INFO L471 AbstractCegarLoop]: Abstraction has 1156 states and 1676 transitions. [2024-11-28 03:59:08,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 64.16666666666667) internal successors, (385), 6 states have internal predecessors, (385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:08,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1156 states and 1676 transitions. [2024-11-28 03:59:08,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 386 [2024-11-28 03:59:08,671 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:08,671 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:59:08,693 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:59:08,872 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 03:59:08,872 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:08,872 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:08,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1311956855, now seen corresponding path program 1 times [2024-11-28 03:59:08,873 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:08,873 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400505041] [2024-11-28 03:59:08,873 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:08,873 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:10,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:11,623 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 187 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:11,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:11,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400505041] [2024-11-28 03:59:11,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400505041] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:11,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185543847] [2024-11-28 03:59:11,624 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:11,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:11,625 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:11,627 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:11,632 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:59:13,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:13,596 INFO L256 TraceCheckSpWp]: Trace formula consists of 2483 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 03:59:13,608 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:14,355 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 187 proven. 31 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:14,355 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 218 backedges. 186 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:15,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185543847] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:15,479 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:59:15,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 15 [2024-11-28 03:59:15,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977566918] [2024-11-28 03:59:15,479 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:15,480 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 03:59:15,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:15,481 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 03:59:15,481 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:59:15,482 INFO L87 Difference]: Start difference. First operand 1156 states and 1676 transitions. Second operand has 15 states, 15 states have (on average 40.46666666666667) internal successors, (607), 15 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:17,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:17,032 INFO L93 Difference]: Finished difference Result 1851 states and 2697 transitions. [2024-11-28 03:59:17,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:59:17,036 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 40.46666666666667) internal successors, (607), 15 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 385 [2024-11-28 03:59:17,037 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:17,040 INFO L225 Difference]: With dead ends: 1851 [2024-11-28 03:59:17,040 INFO L226 Difference]: Without dead ends: 1160 [2024-11-28 03:59:17,041 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 785 GetRequests, 763 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=115, Invalid=437, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:59:17,044 INFO L435 NwaCegarLoop]: 371 mSDtfsCounter, 1724 mSDsluCounter, 3698 mSDsCounter, 0 mSdLazyCounter, 1811 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1724 SdHoareTripleChecker+Valid, 4069 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1811 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:17,044 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1724 Valid, 4069 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1811 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-28 03:59:17,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1160 states. [2024-11-28 03:59:17,066 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1160 to 1158. [2024-11-28 03:59:17,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1158 states, 1157 states have (on average 1.4503025064822819) internal successors, (1678), 1157 states have internal predecessors, (1678), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:17,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1158 states to 1158 states and 1678 transitions. [2024-11-28 03:59:17,071 INFO L78 Accepts]: Start accepts. Automaton has 1158 states and 1678 transitions. Word has length 385 [2024-11-28 03:59:17,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:17,072 INFO L471 AbstractCegarLoop]: Abstraction has 1158 states and 1678 transitions. [2024-11-28 03:59:17,073 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 40.46666666666667) internal successors, (607), 15 states have internal predecessors, (607), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:17,073 INFO L276 IsEmpty]: Start isEmpty. Operand 1158 states and 1678 transitions. [2024-11-28 03:59:17,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 387 [2024-11-28 03:59:17,077 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:17,077 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:59:17,121 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 03:59:17,278 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-28 03:59:17,278 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:17,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:17,279 INFO L85 PathProgramCache]: Analyzing trace with hash -1519051669, now seen corresponding path program 1 times [2024-11-28 03:59:17,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:17,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788596742] [2024-11-28 03:59:17,279 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:17,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:18,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:20,945 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 81 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:20,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:20,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788596742] [2024-11-28 03:59:20,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788596742] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:20,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727447265] [2024-11-28 03:59:20,945 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:20,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:20,945 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:20,950 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:20,952 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:59:23,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:23,751 INFO L256 TraceCheckSpWp]: Trace formula consists of 2484 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-28 03:59:23,764 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:24,391 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 184 proven. 31 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:59:24,391 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:25,360 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 213 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-28 03:59:25,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727447265] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:25,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:59:25,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 8] total 23 [2024-11-28 03:59:25,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092185398] [2024-11-28 03:59:25,360 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:25,362 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:59:25,362 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:25,364 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:59:25,364 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=425, Unknown=0, NotChecked=0, Total=506 [2024-11-28 03:59:25,365 INFO L87 Difference]: Start difference. First operand 1158 states and 1678 transitions. Second operand has 23 states, 23 states have (on average 41.65217391304348) internal successors, (958), 23 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:29,253 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:29,254 INFO L93 Difference]: Finished difference Result 3459 states and 5025 transitions. [2024-11-28 03:59:29,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-28 03:59:29,254 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 23 states have (on average 41.65217391304348) internal successors, (958), 23 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 386 [2024-11-28 03:59:29,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:29,262 INFO L225 Difference]: With dead ends: 3459 [2024-11-28 03:59:29,262 INFO L226 Difference]: Without dead ends: 2404 [2024-11-28 03:59:29,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 807 GetRequests, 761 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 430 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=436, Invalid=1820, Unknown=0, NotChecked=0, Total=2256 [2024-11-28 03:59:29,265 INFO L435 NwaCegarLoop]: 776 mSDtfsCounter, 3095 mSDsluCounter, 9095 mSDsCounter, 0 mSdLazyCounter, 4327 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3095 SdHoareTripleChecker+Valid, 9871 SdHoareTripleChecker+Invalid, 4331 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4327 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:29,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3095 Valid, 9871 Invalid, 4331 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4327 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 03:59:29,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2024-11-28 03:59:29,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 1638. [2024-11-28 03:59:29,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1638 states, 1637 states have (on average 1.4410507025045816) internal successors, (2359), 1637 states have internal predecessors, (2359), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1638 states to 1638 states and 2359 transitions. [2024-11-28 03:59:29,309 INFO L78 Accepts]: Start accepts. Automaton has 1638 states and 2359 transitions. Word has length 386 [2024-11-28 03:59:29,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:29,310 INFO L471 AbstractCegarLoop]: Abstraction has 1638 states and 2359 transitions. [2024-11-28 03:59:29,310 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 41.65217391304348) internal successors, (958), 23 states have internal predecessors, (958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:29,311 INFO L276 IsEmpty]: Start isEmpty. Operand 1638 states and 2359 transitions. [2024-11-28 03:59:29,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-28 03:59:29,316 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:29,316 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:59:29,340 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:29,517 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:29,517 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:29,517 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:29,518 INFO L85 PathProgramCache]: Analyzing trace with hash 1862927634, now seen corresponding path program 1 times [2024-11-28 03:59:29,518 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:29,518 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051510924] [2024-11-28 03:59:29,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:29,518 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:31,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:32,690 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 81 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:32,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:32,690 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2051510924] [2024-11-28 03:59:32,690 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2051510924] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:32,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [432120901] [2024-11-28 03:59:32,691 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:32,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:32,691 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:32,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:32,698 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:59:34,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:34,957 INFO L256 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-11-28 03:59:34,965 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:35,816 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 81 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:35,816 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:36,941 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 81 proven. 139 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 03:59:36,941 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [432120901] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:36,941 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:59:36,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 9] total 24 [2024-11-28 03:59:36,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1086039263] [2024-11-28 03:59:36,942 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:36,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-28 03:59:36,943 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:36,944 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-28 03:59:36,944 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=481, Unknown=0, NotChecked=0, Total=552 [2024-11-28 03:59:36,945 INFO L87 Difference]: Start difference. First operand 1638 states and 2359 transitions. Second operand has 24 states, 24 states have (on average 43.916666666666664) internal successors, (1054), 24 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:42,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:42,066 INFO L93 Difference]: Finished difference Result 3977 states and 5708 transitions. [2024-11-28 03:59:42,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-11-28 03:59:42,067 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 43.916666666666664) internal successors, (1054), 24 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-11-28 03:59:42,068 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:42,078 INFO L225 Difference]: With dead ends: 3977 [2024-11-28 03:59:42,078 INFO L226 Difference]: Without dead ends: 2871 [2024-11-28 03:59:42,081 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 827 GetRequests, 777 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 503 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=362, Invalid=2290, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 03:59:42,082 INFO L435 NwaCegarLoop]: 1387 mSDtfsCounter, 2546 mSDsluCounter, 15126 mSDsCounter, 0 mSdLazyCounter, 5736 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2546 SdHoareTripleChecker+Valid, 16513 SdHoareTripleChecker+Invalid, 5739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 5736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:42,082 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2546 Valid, 16513 Invalid, 5739 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3 Valid, 5736 Invalid, 0 Unknown, 0 Unchecked, 4.0s Time] [2024-11-28 03:59:42,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2871 states. [2024-11-28 03:59:42,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2871 to 1626. [2024-11-28 03:59:42,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1626 states, 1625 states have (on average 1.4443076923076923) internal successors, (2347), 1625 states have internal predecessors, (2347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:42,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1626 states to 1626 states and 2347 transitions. [2024-11-28 03:59:42,141 INFO L78 Accepts]: Start accepts. Automaton has 1626 states and 2347 transitions. Word has length 389 [2024-11-28 03:59:42,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:42,142 INFO L471 AbstractCegarLoop]: Abstraction has 1626 states and 2347 transitions. [2024-11-28 03:59:42,143 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 43.916666666666664) internal successors, (1054), 24 states have internal predecessors, (1054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:42,143 INFO L276 IsEmpty]: Start isEmpty. Operand 1626 states and 2347 transitions. [2024-11-28 03:59:42,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-28 03:59:42,151 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:42,151 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:59:42,173 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-28 03:59:42,352 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:42,352 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:42,352 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:42,353 INFO L85 PathProgramCache]: Analyzing trace with hash -420484277, now seen corresponding path program 1 times [2024-11-28 03:59:42,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:42,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733072941] [2024-11-28 03:59:42,353 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:42,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:59:45,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:47,639 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 152 proven. 2 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-28 03:59:47,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:59:47,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733072941] [2024-11-28 03:59:47,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1733072941] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:59:47,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1815953184] [2024-11-28 03:59:47,639 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:47,639 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:59:47,639 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:59:47,642 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:59:47,646 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:59:50,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:59:50,315 INFO L256 TraceCheckSpWp]: Trace formula consists of 2493 conjuncts, 64 conjuncts are in the unsatisfiable core [2024-11-28 03:59:50,326 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:59:51,860 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 163 proven. 49 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 03:59:51,860 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:59:54,129 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 181 proven. 4 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2024-11-28 03:59:54,129 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1815953184] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:59:54,130 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:59:54,130 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 18, 16] total 37 [2024-11-28 03:59:54,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422882389] [2024-11-28 03:59:54,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:59:54,131 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 03:59:54,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:59:54,132 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 03:59:54,133 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=236, Invalid=1096, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 03:59:54,134 INFO L87 Difference]: Start difference. First operand 1626 states and 2347 transitions. Second operand has 37 states, 37 states have (on average 23.35135135135135) internal successors, (864), 37 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:58,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:59:58,798 INFO L93 Difference]: Finished difference Result 7637 states and 11058 transitions. [2024-11-28 03:59:58,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2024-11-28 03:59:58,799 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 23.35135135135135) internal successors, (864), 37 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-11-28 03:59:58,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:59:58,814 INFO L225 Difference]: With dead ends: 7637 [2024-11-28 03:59:58,814 INFO L226 Difference]: Without dead ends: 6175 [2024-11-28 03:59:58,817 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 824 GetRequests, 750 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1489 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=746, Invalid=4804, Unknown=0, NotChecked=0, Total=5550 [2024-11-28 03:59:58,817 INFO L435 NwaCegarLoop]: 428 mSDtfsCounter, 6229 mSDsluCounter, 7455 mSDsCounter, 0 mSdLazyCounter, 4293 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6229 SdHoareTripleChecker+Valid, 7883 SdHoareTripleChecker+Invalid, 4305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 4293 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:59:58,818 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6229 Valid, 7883 Invalid, 4305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 4293 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-11-28 03:59:58,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6175 states. [2024-11-28 03:59:58,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6175 to 2685. [2024-11-28 03:59:58,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2685 states, 2684 states have (on average 1.4485842026825633) internal successors, (3888), 2684 states have internal predecessors, (3888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:58,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2685 states to 2685 states and 3888 transitions. [2024-11-28 03:59:58,892 INFO L78 Accepts]: Start accepts. Automaton has 2685 states and 3888 transitions. Word has length 389 [2024-11-28 03:59:58,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:59:58,893 INFO L471 AbstractCegarLoop]: Abstraction has 2685 states and 3888 transitions. [2024-11-28 03:59:58,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 23.35135135135135) internal successors, (864), 37 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 03:59:58,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2685 states and 3888 transitions. [2024-11-28 03:59:58,900 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-28 03:59:58,900 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:59:58,901 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 03:59:58,923 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:59:59,101 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-28 03:59:59,101 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:59:59,102 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:59:59,102 INFO L85 PathProgramCache]: Analyzing trace with hash -1296580042, now seen corresponding path program 1 times [2024-11-28 03:59:59,102 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:59:59,102 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [505913069] [2024-11-28 03:59:59,102 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:59:59,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:00,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:02,080 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 26 proven. 10 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-28 04:00:02,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:02,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [505913069] [2024-11-28 04:00:02,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [505913069] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:02,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71878392] [2024-11-28 04:00:02,081 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:02,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:02,081 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:02,087 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:02,088 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 04:00:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:03,918 INFO L256 TraceCheckSpWp]: Trace formula consists of 2495 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:00:03,927 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:06,039 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 182 proven. 36 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:00:06,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:07,141 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 81 proven. 138 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:00:07,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71878392] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:00:07,141 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:00:07,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 12, 12] total 28 [2024-11-28 04:00:07,141 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1566315133] [2024-11-28 04:00:07,141 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:07,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-28 04:00:07,142 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:07,143 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-28 04:00:07,143 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=641, Unknown=0, NotChecked=0, Total=756 [2024-11-28 04:00:07,145 INFO L87 Difference]: Start difference. First operand 2685 states and 3888 transitions. Second operand has 28 states, 28 states have (on average 34.0) internal successors, (952), 28 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:12,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:12,744 INFO L93 Difference]: Finished difference Result 7838 states and 11349 transitions. [2024-11-28 04:00:12,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-28 04:00:12,745 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 34.0) internal successors, (952), 28 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-11-28 04:00:12,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:12,759 INFO L225 Difference]: With dead ends: 7838 [2024-11-28 04:00:12,759 INFO L226 Difference]: Without dead ends: 5212 [2024-11-28 04:00:12,767 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 914 GetRequests, 794 SyntacticMatches, 0 SemanticMatches, 120 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4484 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=1816, Invalid=12946, Unknown=0, NotChecked=0, Total=14762 [2024-11-28 04:00:12,768 INFO L435 NwaCegarLoop]: 411 mSDtfsCounter, 6638 mSDsluCounter, 6539 mSDsCounter, 0 mSdLazyCounter, 3310 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6638 SdHoareTripleChecker+Valid, 6950 SdHoareTripleChecker+Invalid, 3339 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 3310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:12,768 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [6638 Valid, 6950 Invalid, 3339 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 3310 Invalid, 0 Unknown, 0 Unchecked, 2.4s Time] [2024-11-28 04:00:12,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2024-11-28 04:00:12,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 3731. [2024-11-28 04:00:12,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3731 states, 3730 states have (on average 1.434048257372654) internal successors, (5349), 3730 states have internal predecessors, (5349), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:12,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3731 states to 3731 states and 5349 transitions. [2024-11-28 04:00:12,905 INFO L78 Accepts]: Start accepts. Automaton has 3731 states and 5349 transitions. Word has length 389 [2024-11-28 04:00:12,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:12,906 INFO L471 AbstractCegarLoop]: Abstraction has 3731 states and 5349 transitions. [2024-11-28 04:00:12,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 34.0) internal successors, (952), 28 states have internal predecessors, (952), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:12,907 INFO L276 IsEmpty]: Start isEmpty. Operand 3731 states and 5349 transitions. [2024-11-28 04:00:12,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 390 [2024-11-28 04:00:12,915 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:12,916 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:12,938 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-28 04:00:13,116 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-28 04:00:13,117 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:00:13,117 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:13,117 INFO L85 PathProgramCache]: Analyzing trace with hash 1997869021, now seen corresponding path program 1 times [2024-11-28 04:00:13,117 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:13,117 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787139555] [2024-11-28 04:00:13,118 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:13,118 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:15,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:18,048 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 18 proven. 18 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-28 04:00:18,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:18,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787139555] [2024-11-28 04:00:18,048 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1787139555] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:18,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [885674266] [2024-11-28 04:00:18,049 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:18,049 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:18,049 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:18,051 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:18,052 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 04:00:20,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:20,041 INFO L256 TraceCheckSpWp]: Trace formula consists of 2495 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:00:20,052 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:21,687 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 79 proven. 45 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-28 04:00:21,687 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:24,431 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 120 proven. 4 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-28 04:00:24,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [885674266] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:00:24,432 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:00:24,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 10, 11] total 29 [2024-11-28 04:00:24,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1841207234] [2024-11-28 04:00:24,432 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:24,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-28 04:00:24,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:24,433 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-28 04:00:24,434 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=93, Invalid=719, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:00:24,434 INFO L87 Difference]: Start difference. First operand 3731 states and 5349 transitions. Second operand has 29 states, 29 states have (on average 26.93103448275862) internal successors, (781), 29 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:29,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:29,640 INFO L93 Difference]: Finished difference Result 10469 states and 14978 transitions. [2024-11-28 04:00:29,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-11-28 04:00:29,640 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 26.93103448275862) internal successors, (781), 29 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 389 [2024-11-28 04:00:29,641 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:29,654 INFO L225 Difference]: With dead ends: 10469 [2024-11-28 04:00:29,654 INFO L226 Difference]: Without dead ends: 6828 [2024-11-28 04:00:29,659 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 812 GetRequests, 762 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 333 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=337, Invalid=2315, Unknown=0, NotChecked=0, Total=2652 [2024-11-28 04:00:29,659 INFO L435 NwaCegarLoop]: 486 mSDtfsCounter, 1893 mSDsluCounter, 9290 mSDsCounter, 0 mSdLazyCounter, 7174 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1893 SdHoareTripleChecker+Valid, 9776 SdHoareTripleChecker+Invalid, 7177 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 7174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:29,660 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1893 Valid, 9776 Invalid, 7177 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 7174 Invalid, 0 Unknown, 0 Unchecked, 4.3s Time] [2024-11-28 04:00:29,669 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6828 states. [2024-11-28 04:00:29,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6828 to 5113. [2024-11-28 04:00:29,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5113 states, 5112 states have (on average 1.425078247261346) internal successors, (7285), 5112 states have internal predecessors, (7285), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:29,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5113 states to 5113 states and 7285 transitions. [2024-11-28 04:00:29,762 INFO L78 Accepts]: Start accepts. Automaton has 5113 states and 7285 transitions. Word has length 389 [2024-11-28 04:00:29,762 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:29,762 INFO L471 AbstractCegarLoop]: Abstraction has 5113 states and 7285 transitions. [2024-11-28 04:00:29,763 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 26.93103448275862) internal successors, (781), 29 states have internal predecessors, (781), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:29,763 INFO L276 IsEmpty]: Start isEmpty. Operand 5113 states and 7285 transitions. [2024-11-28 04:00:29,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-28 04:00:29,775 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:29,775 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:29,798 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-28 04:00:29,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-28 04:00:29,976 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:00:29,976 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:29,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1559369988, now seen corresponding path program 1 times [2024-11-28 04:00:29,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:29,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1696287987] [2024-11-28 04:00:29,977 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:29,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:31,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:32,263 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 156 proven. 2 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-28 04:00:32,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:32,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1696287987] [2024-11-28 04:00:32,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1696287987] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:32,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218792642] [2024-11-28 04:00:32,264 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:32,264 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:32,264 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:32,266 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:32,268 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 04:00:34,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:34,676 INFO L256 TraceCheckSpWp]: Trace formula consists of 2496 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 04:00:34,687 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:35,174 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 158 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-28 04:00:35,174 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:00:35,174 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218792642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:00:35,174 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:00:35,174 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-11-28 04:00:35,175 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992524890] [2024-11-28 04:00:35,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:00:35,175 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:00:35,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:35,176 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:00:35,176 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:00:35,176 INFO L87 Difference]: Start difference. First operand 5113 states and 7285 transitions. Second operand has 7 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:35,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:35,329 INFO L93 Difference]: Finished difference Result 10086 states and 14380 transitions. [2024-11-28 04:00:35,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:00:35,330 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-11-28 04:00:35,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:35,339 INFO L225 Difference]: With dead ends: 10086 [2024-11-28 04:00:35,339 INFO L226 Difference]: Without dead ends: 5138 [2024-11-28 04:00:35,344 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 389 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:00:35,345 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 346 mSDsluCounter, 2017 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2525 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:35,345 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2525 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:00:35,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5138 states. [2024-11-28 04:00:35,479 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5138 to 5138. [2024-11-28 04:00:35,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5138 states, 5137 states have (on average 1.423982869379015) internal successors, (7315), 5137 states have internal predecessors, (7315), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:35,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5138 states to 5138 states and 7315 transitions. [2024-11-28 04:00:35,495 INFO L78 Accepts]: Start accepts. Automaton has 5138 states and 7315 transitions. Word has length 390 [2024-11-28 04:00:35,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:35,495 INFO L471 AbstractCegarLoop]: Abstraction has 5138 states and 7315 transitions. [2024-11-28 04:00:35,495 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:35,496 INFO L276 IsEmpty]: Start isEmpty. Operand 5138 states and 7315 transitions. [2024-11-28 04:00:35,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-28 04:00:35,507 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:35,508 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:35,532 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-28 04:00:35,708 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-28 04:00:35,709 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:00:35,710 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:35,710 INFO L85 PathProgramCache]: Analyzing trace with hash 995509848, now seen corresponding path program 1 times [2024-11-28 04:00:35,711 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:35,711 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [113917755] [2024-11-28 04:00:35,711 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:35,711 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:36,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:38,171 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 24 proven. 12 refuted. 0 times theorem prover too weak. 183 trivial. 0 not checked. [2024-11-28 04:00:38,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:38,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [113917755] [2024-11-28 04:00:38,171 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [113917755] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:38,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1218620339] [2024-11-28 04:00:38,171 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:38,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:38,171 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:38,174 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:38,175 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 04:00:40,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:40,322 INFO L256 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 04:00:40,334 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:42,341 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 24 proven. 185 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:00:42,341 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:44,000 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 62 proven. 14 refuted. 0 times theorem prover too weak. 143 trivial. 0 not checked. [2024-11-28 04:00:44,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1218620339] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:00:44,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:00:44,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 20 [2024-11-28 04:00:44,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147509033] [2024-11-28 04:00:44,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:44,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-28 04:00:44,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:44,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-28 04:00:44,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=322, Unknown=0, NotChecked=0, Total=380 [2024-11-28 04:00:44,003 INFO L87 Difference]: Start difference. First operand 5138 states and 7315 transitions. Second operand has 20 states, 20 states have (on average 40.95) internal successors, (819), 20 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:45,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:45,755 INFO L93 Difference]: Finished difference Result 10569 states and 15076 transitions. [2024-11-28 04:00:45,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 04:00:45,756 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 40.95) internal successors, (819), 20 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-11-28 04:00:45,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:45,769 INFO L225 Difference]: With dead ends: 10569 [2024-11-28 04:00:45,769 INFO L226 Difference]: Without dead ends: 5501 [2024-11-28 04:00:45,775 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 794 GetRequests, 766 SyntacticMatches, 3 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=128, Invalid=574, Unknown=0, NotChecked=0, Total=702 [2024-11-28 04:00:45,775 INFO L435 NwaCegarLoop]: 322 mSDtfsCounter, 1182 mSDsluCounter, 3194 mSDsCounter, 0 mSdLazyCounter, 2353 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1182 SdHoareTripleChecker+Valid, 3516 SdHoareTripleChecker+Invalid, 2357 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 2353 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:45,776 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1182 Valid, 3516 Invalid, 2357 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 2353 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-28 04:00:45,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5501 states. [2024-11-28 04:00:45,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5501 to 5253. [2024-11-28 04:00:45,869 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5253 states, 5252 states have (on average 1.4278370144706778) internal successors, (7499), 5252 states have internal predecessors, (7499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:45,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5253 states to 5253 states and 7499 transitions. [2024-11-28 04:00:45,878 INFO L78 Accepts]: Start accepts. Automaton has 5253 states and 7499 transitions. Word has length 390 [2024-11-28 04:00:45,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:45,879 INFO L471 AbstractCegarLoop]: Abstraction has 5253 states and 7499 transitions. [2024-11-28 04:00:45,879 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 40.95) internal successors, (819), 20 states have internal predecessors, (819), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:45,880 INFO L276 IsEmpty]: Start isEmpty. Operand 5253 states and 7499 transitions. [2024-11-28 04:00:45,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-28 04:00:45,890 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:45,891 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:00:45,915 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-11-28 04:00:46,091 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-28 04:00:46,092 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:00:46,092 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:46,093 INFO L85 PathProgramCache]: Analyzing trace with hash 731179455, now seen corresponding path program 1 times [2024-11-28 04:00:46,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:46,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122237420] [2024-11-28 04:00:46,093 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:46,093 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:47,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:49,106 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 34 proven. 6 refuted. 0 times theorem prover too weak. 179 trivial. 0 not checked. [2024-11-28 04:00:49,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:49,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122237420] [2024-11-28 04:00:49,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122237420] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:49,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2055600326] [2024-11-28 04:00:49,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:49,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:49,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:49,108 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:49,111 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:00:51,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:51,265 INFO L256 TraceCheckSpWp]: Trace formula consists of 2498 conjuncts, 29 conjuncts are in the unsatisfiable core [2024-11-28 04:00:51,273 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:00:51,915 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 36 proven. 42 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-28 04:00:51,915 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:00:53,001 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 68 proven. 10 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2024-11-28 04:00:53,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2055600326] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:00:53,001 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:00:53,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 8] total 15 [2024-11-28 04:00:53,001 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [250338484] [2024-11-28 04:00:53,001 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:00:53,002 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-28 04:00:53,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:00:53,003 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-28 04:00:53,003 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2024-11-28 04:00:53,003 INFO L87 Difference]: Start difference. First operand 5253 states and 7499 transitions. Second operand has 15 states, 15 states have (on average 34.333333333333336) internal successors, (515), 15 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:53,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:00:53,889 INFO L93 Difference]: Finished difference Result 10839 states and 15503 transitions. [2024-11-28 04:00:53,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:00:53,890 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 34.333333333333336) internal successors, (515), 15 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-11-28 04:00:53,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:00:53,903 INFO L225 Difference]: With dead ends: 10839 [2024-11-28 04:00:53,903 INFO L226 Difference]: Without dead ends: 5659 [2024-11-28 04:00:53,908 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 789 GetRequests, 772 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2024-11-28 04:00:53,909 INFO L435 NwaCegarLoop]: 377 mSDtfsCounter, 833 mSDsluCounter, 2240 mSDsCounter, 0 mSdLazyCounter, 1114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 833 SdHoareTripleChecker+Valid, 2617 SdHoareTripleChecker+Invalid, 1115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:00:53,910 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [833 Valid, 2617 Invalid, 1115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1114 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 04:00:53,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5659 states. [2024-11-28 04:00:53,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5659 to 5653. [2024-11-28 04:00:54,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5653 states, 5652 states have (on average 1.4134819532908705) internal successors, (7989), 5652 states have internal predecessors, (7989), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:54,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5653 states to 5653 states and 7989 transitions. [2024-11-28 04:00:54,010 INFO L78 Accepts]: Start accepts. Automaton has 5653 states and 7989 transitions. Word has length 390 [2024-11-28 04:00:54,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:00:54,011 INFO L471 AbstractCegarLoop]: Abstraction has 5653 states and 7989 transitions. [2024-11-28 04:00:54,011 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 34.333333333333336) internal successors, (515), 15 states have internal predecessors, (515), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:00:54,011 INFO L276 IsEmpty]: Start isEmpty. Operand 5653 states and 7989 transitions. [2024-11-28 04:00:54,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-28 04:00:54,020 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:00:54,020 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:00:54,044 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:00:54,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:54,222 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:00:54,222 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:00:54,222 INFO L85 PathProgramCache]: Analyzing trace with hash 1016970421, now seen corresponding path program 1 times [2024-11-28 04:00:54,222 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:00:54,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420468156] [2024-11-28 04:00:54,223 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:54,223 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:00:56,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:00:57,823 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 88 proven. 130 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 04:00:57,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:00:57,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420468156] [2024-11-28 04:00:57,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420468156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:00:57,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [813665394] [2024-11-28 04:00:57,824 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:00:57,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:00:57,824 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:00:57,826 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:00:57,832 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:01:00,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:00,230 INFO L256 TraceCheckSpWp]: Trace formula consists of 2496 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-28 04:01:00,236 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:01,360 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 212 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:01,360 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:04,306 INFO L134 CoverageAnalysis]: Checked inductivity of 219 backedges. 60 proven. 159 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:04,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [813665394] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:04,307 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:04,307 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 9] total 16 [2024-11-28 04:01:04,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1593213705] [2024-11-28 04:01:04,307 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:04,308 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-28 04:01:04,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:04,309 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-28 04:01:04,309 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=167, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:01:04,309 INFO L87 Difference]: Start difference. First operand 5653 states and 7989 transitions. Second operand has 16 states, 16 states have (on average 56.375) internal successors, (902), 16 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:06,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:06,145 INFO L93 Difference]: Finished difference Result 9750 states and 13834 transitions. [2024-11-28 04:01:06,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:01:06,146 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 56.375) internal successors, (902), 16 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-11-28 04:01:06,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:06,156 INFO L225 Difference]: With dead ends: 9750 [2024-11-28 04:01:06,157 INFO L226 Difference]: Without dead ends: 5655 [2024-11-28 04:01:06,162 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 797 GetRequests, 774 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=168, Invalid=384, Unknown=0, NotChecked=0, Total=552 [2024-11-28 04:01:06,163 INFO L435 NwaCegarLoop]: 694 mSDtfsCounter, 2453 mSDsluCounter, 3557 mSDsCounter, 0 mSdLazyCounter, 1783 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2453 SdHoareTripleChecker+Valid, 4251 SdHoareTripleChecker+Invalid, 1787 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 1783 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:06,163 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2453 Valid, 4251 Invalid, 1787 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 1783 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-28 04:01:06,168 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5655 states. [2024-11-28 04:01:06,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5655 to 5653. [2024-11-28 04:01:06,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5653 states, 5652 states have (on average 1.41206652512385) internal successors, (7981), 5652 states have internal predecessors, (7981), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:06,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5653 states to 5653 states and 7981 transitions. [2024-11-28 04:01:06,315 INFO L78 Accepts]: Start accepts. Automaton has 5653 states and 7981 transitions. Word has length 390 [2024-11-28 04:01:06,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:06,316 INFO L471 AbstractCegarLoop]: Abstraction has 5653 states and 7981 transitions. [2024-11-28 04:01:06,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 56.375) internal successors, (902), 16 states have internal predecessors, (902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:06,317 INFO L276 IsEmpty]: Start isEmpty. Operand 5653 states and 7981 transitions. [2024-11-28 04:01:06,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 391 [2024-11-28 04:01:06,331 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:06,331 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:06,356 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-28 04:01:06,532 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-11-28 04:01:06,533 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:06,533 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:06,534 INFO L85 PathProgramCache]: Analyzing trace with hash -1059279769, now seen corresponding path program 1 times [2024-11-28 04:01:06,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:06,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360111875] [2024-11-28 04:01:06,534 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:06,534 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:12,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:18,101 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 94 proven. 12 refuted. 0 times theorem prover too weak. 114 trivial. 0 not checked. [2024-11-28 04:01:18,101 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:18,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1360111875] [2024-11-28 04:01:18,101 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1360111875] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:18,101 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707400489] [2024-11-28 04:01:18,101 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:18,102 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:18,102 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:18,106 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:18,108 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:01:22,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:22,302 INFO L256 TraceCheckSpWp]: Trace formula consists of 2494 conjuncts, 40 conjuncts are in the unsatisfiable core [2024-11-28 04:01:22,310 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:22,781 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 218 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:22,781 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:23,627 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 218 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:01:23,627 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707400489] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:23,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:23,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 11, 10] total 33 [2024-11-28 04:01:23,628 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862016649] [2024-11-28 04:01:23,628 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:23,629 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-28 04:01:23,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:23,630 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-28 04:01:23,632 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=960, Unknown=0, NotChecked=0, Total=1056 [2024-11-28 04:01:23,632 INFO L87 Difference]: Start difference. First operand 5653 states and 7981 transitions. Second operand has 33 states, 33 states have (on average 25.09090909090909) internal successors, (828), 33 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:25,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:25,006 INFO L93 Difference]: Finished difference Result 10420 states and 14727 transitions. [2024-11-28 04:01:25,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:01:25,007 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 25.09090909090909) internal successors, (828), 33 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 390 [2024-11-28 04:01:25,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:25,012 INFO L225 Difference]: With dead ends: 10420 [2024-11-28 04:01:25,012 INFO L226 Difference]: Without dead ends: 6325 [2024-11-28 04:01:25,017 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 822 GetRequests, 769 SyntacticMatches, 4 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=228, Invalid=2322, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 04:01:25,017 INFO L435 NwaCegarLoop]: 656 mSDtfsCounter, 1446 mSDsluCounter, 11563 mSDsCounter, 0 mSdLazyCounter, 823 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1446 SdHoareTripleChecker+Valid, 12219 SdHoareTripleChecker+Invalid, 824 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:25,018 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1446 Valid, 12219 Invalid, 824 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 823 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 04:01:25,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6325 states. [2024-11-28 04:01:25,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6325 to 6132. [2024-11-28 04:01:25,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6132 states, 6131 states have (on average 1.407274506605774) internal successors, (8628), 6131 states have internal predecessors, (8628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:25,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6132 states to 6132 states and 8628 transitions. [2024-11-28 04:01:25,132 INFO L78 Accepts]: Start accepts. Automaton has 6132 states and 8628 transitions. Word has length 390 [2024-11-28 04:01:25,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:25,132 INFO L471 AbstractCegarLoop]: Abstraction has 6132 states and 8628 transitions. [2024-11-28 04:01:25,133 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 25.09090909090909) internal successors, (828), 33 states have internal predecessors, (828), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:25,133 INFO L276 IsEmpty]: Start isEmpty. Operand 6132 states and 8628 transitions. [2024-11-28 04:01:25,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-28 04:01:25,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:25,143 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:01:25,168 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:01:25,343 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:25,344 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:25,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:25,344 INFO L85 PathProgramCache]: Analyzing trace with hash 107943465, now seen corresponding path program 1 times [2024-11-28 04:01:25,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:25,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [769651813] [2024-11-28 04:01:25,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:25,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:25,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:26,452 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 209 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 04:01:26,453 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:26,453 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [769651813] [2024-11-28 04:01:26,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [769651813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:01:26,453 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:01:26,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:01:26,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540875428] [2024-11-28 04:01:26,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:01:26,454 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:01:26,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:26,455 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:01:26,455 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:01:26,455 INFO L87 Difference]: Start difference. First operand 6132 states and 8628 transitions. Second operand has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:26,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:26,859 INFO L93 Difference]: Finished difference Result 12143 states and 17095 transitions. [2024-11-28 04:01:26,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:01:26,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-11-28 04:01:26,860 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:26,865 INFO L225 Difference]: With dead ends: 12143 [2024-11-28 04:01:26,865 INFO L226 Difference]: Without dead ends: 6150 [2024-11-28 04:01:26,869 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:01:26,869 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 365 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1139 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:26,870 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1139 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-28 04:01:26,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6150 states. [2024-11-28 04:01:26,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6150 to 6150. [2024-11-28 04:01:26,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6150 states, 6149 states have (on average 1.4060822898032201) internal successors, (8646), 6149 states have internal predecessors, (8646), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:26,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6150 states to 6150 states and 8646 transitions. [2024-11-28 04:01:26,975 INFO L78 Accepts]: Start accepts. Automaton has 6150 states and 8646 transitions. Word has length 391 [2024-11-28 04:01:26,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:26,976 INFO L471 AbstractCegarLoop]: Abstraction has 6150 states and 8646 transitions. [2024-11-28 04:01:26,976 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 76.2) internal successors, (381), 5 states have internal predecessors, (381), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:26,976 INFO L276 IsEmpty]: Start isEmpty. Operand 6150 states and 8646 transitions. [2024-11-28 04:01:26,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-28 04:01:26,986 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:26,986 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:26,986 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2024-11-28 04:01:26,987 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:26,987 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:26,987 INFO L85 PathProgramCache]: Analyzing trace with hash -987847485, now seen corresponding path program 1 times [2024-11-28 04:01:26,987 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:26,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430178173] [2024-11-28 04:01:26,988 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:26,988 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:29,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:32,805 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 111 proven. 14 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-28 04:01:32,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:32,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430178173] [2024-11-28 04:01:32,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [430178173] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:32,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [54757797] [2024-11-28 04:01:32,806 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:32,806 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:32,806 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:32,808 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:32,809 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:01:35,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:35,599 INFO L256 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 44 conjuncts are in the unsatisfiable core [2024-11-28 04:01:35,607 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:37,103 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 114 proven. 41 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-28 04:01:37,103 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:39,826 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 151 proven. 4 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-28 04:01:39,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [54757797] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:39,826 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:39,827 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 10, 11] total 31 [2024-11-28 04:01:39,827 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [456157860] [2024-11-28 04:01:39,827 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:39,829 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-28 04:01:39,829 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:39,830 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-28 04:01:39,831 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=130, Invalid=800, Unknown=0, NotChecked=0, Total=930 [2024-11-28 04:01:39,831 INFO L87 Difference]: Start difference. First operand 6150 states and 8646 transitions. Second operand has 31 states, 31 states have (on average 29.322580645161292) internal successors, (909), 31 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:43,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:43,372 INFO L93 Difference]: Finished difference Result 16963 states and 23724 transitions. [2024-11-28 04:01:43,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-11-28 04:01:43,372 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 29.322580645161292) internal successors, (909), 31 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-11-28 04:01:43,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:43,383 INFO L225 Difference]: With dead ends: 16963 [2024-11-28 04:01:43,384 INFO L226 Difference]: Without dead ends: 11477 [2024-11-28 04:01:43,390 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 815 GetRequests, 766 SyntacticMatches, 1 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 411 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=345, Invalid=2105, Unknown=0, NotChecked=0, Total=2450 [2024-11-28 04:01:43,390 INFO L435 NwaCegarLoop]: 482 mSDtfsCounter, 2272 mSDsluCounter, 7407 mSDsCounter, 0 mSdLazyCounter, 4208 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2272 SdHoareTripleChecker+Valid, 7889 SdHoareTripleChecker+Invalid, 4212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 4208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:43,390 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2272 Valid, 7889 Invalid, 4212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 4208 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2024-11-28 04:01:43,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11477 states. [2024-11-28 04:01:43,581 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11477 to 9021. [2024-11-28 04:01:43,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9021 states, 9020 states have (on average 1.4070953436807094) internal successors, (12692), 9020 states have internal predecessors, (12692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:43,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9021 states to 9021 states and 12692 transitions. [2024-11-28 04:01:43,604 INFO L78 Accepts]: Start accepts. Automaton has 9021 states and 12692 transitions. Word has length 391 [2024-11-28 04:01:43,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:43,605 INFO L471 AbstractCegarLoop]: Abstraction has 9021 states and 12692 transitions. [2024-11-28 04:01:43,605 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 29.322580645161292) internal successors, (909), 31 states have internal predecessors, (909), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:43,605 INFO L276 IsEmpty]: Start isEmpty. Operand 9021 states and 12692 transitions. [2024-11-28 04:01:43,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-28 04:01:43,617 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:43,617 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:43,642 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-28 04:01:43,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:43,818 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:43,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:43,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1618800146, now seen corresponding path program 1 times [2024-11-28 04:01:43,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:43,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676709450] [2024-11-28 04:01:43,819 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:43,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:44,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:45,951 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 32 proven. 8 refuted. 0 times theorem prover too weak. 180 trivial. 0 not checked. [2024-11-28 04:01:45,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:01:45,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676709450] [2024-11-28 04:01:45,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1676709450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:01:45,951 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1751099766] [2024-11-28 04:01:45,951 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:45,951 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:01:45,952 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:01:45,954 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:01:45,956 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:01:48,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:01:48,354 INFO L256 TraceCheckSpWp]: Trace formula consists of 2499 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-28 04:01:48,363 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:01:50,219 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 32 proven. 178 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-11-28 04:01:50,219 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:01:51,581 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 68 proven. 10 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-28 04:01:51,581 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1751099766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:01:51,581 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:01:51,581 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 8] total 18 [2024-11-28 04:01:51,581 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [59275374] [2024-11-28 04:01:51,582 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:01:51,582 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:01:51,582 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:01:51,583 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:01:51,583 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-28 04:01:51,584 INFO L87 Difference]: Start difference. First operand 9021 states and 12692 transitions. Second operand has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:52,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:01:52,954 INFO L93 Difference]: Finished difference Result 18453 states and 25965 transitions. [2024-11-28 04:01:52,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:01:52,954 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-11-28 04:01:52,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:01:52,962 INFO L225 Difference]: With dead ends: 18453 [2024-11-28 04:01:52,962 INFO L226 Difference]: Without dead ends: 9515 [2024-11-28 04:01:52,969 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 792 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2024-11-28 04:01:52,970 INFO L435 NwaCegarLoop]: 326 mSDtfsCounter, 490 mSDsluCounter, 2909 mSDsCounter, 0 mSdLazyCounter, 2103 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 490 SdHoareTripleChecker+Valid, 3235 SdHoareTripleChecker+Invalid, 2106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 2103 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:01:52,970 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [490 Valid, 3235 Invalid, 2106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 2103 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:01:52,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9515 states. [2024-11-28 04:01:53,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9515 to 9021. [2024-11-28 04:01:53,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9021 states, 9020 states have (on average 1.4070953436807094) internal successors, (12692), 9020 states have internal predecessors, (12692), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:53,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9021 states to 9021 states and 12692 transitions. [2024-11-28 04:01:53,098 INFO L78 Accepts]: Start accepts. Automaton has 9021 states and 12692 transitions. Word has length 391 [2024-11-28 04:01:53,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:01:53,098 INFO L471 AbstractCegarLoop]: Abstraction has 9021 states and 12692 transitions. [2024-11-28 04:01:53,099 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 45.22222222222222) internal successors, (814), 18 states have internal predecessors, (814), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:01:53,099 INFO L276 IsEmpty]: Start isEmpty. Operand 9021 states and 12692 transitions. [2024-11-28 04:01:53,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-28 04:01:53,106 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:01:53,106 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:01:53,122 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-28 04:01:53,306 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-28 04:01:53,307 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:01:53,307 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:01:53,307 INFO L85 PathProgramCache]: Analyzing trace with hash 1600919676, now seen corresponding path program 1 times [2024-11-28 04:01:53,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:01:53,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1056151094] [2024-11-28 04:01:53,308 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:01:53,308 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:01:56,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:01,636 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 204 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:02:01,636 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:01,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1056151094] [2024-11-28 04:02:01,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1056151094] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:01,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [322251519] [2024-11-28 04:02:01,636 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:01,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:01,636 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:01,638 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:01,639 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:02:05,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:05,193 INFO L256 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 61 conjuncts are in the unsatisfiable core [2024-11-28 04:02:05,203 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:06,401 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 93 proven. 127 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:02:06,401 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:08,085 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 167 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:02:08,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [322251519] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:02:08,086 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:02:08,086 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 13] total 44 [2024-11-28 04:02:08,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219771419] [2024-11-28 04:02:08,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:08,087 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-11-28 04:02:08,087 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:08,088 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-11-28 04:02:08,089 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=256, Invalid=1636, Unknown=0, NotChecked=0, Total=1892 [2024-11-28 04:02:08,089 INFO L87 Difference]: Start difference. First operand 9021 states and 12692 transitions. Second operand has 44 states, 44 states have (on average 25.84090909090909) internal successors, (1137), 44 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:21,117 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:21,117 INFO L93 Difference]: Finished difference Result 34080 states and 48458 transitions. [2024-11-28 04:02:21,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-11-28 04:02:21,117 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 44 states have (on average 25.84090909090909) internal successors, (1137), 44 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-11-28 04:02:21,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:21,127 INFO L225 Difference]: With dead ends: 34080 [2024-11-28 04:02:21,127 INFO L226 Difference]: Without dead ends: 17810 [2024-11-28 04:02:21,132 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 880 GetRequests, 777 SyntacticMatches, 1 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2470 ImplicationChecksByTransitivity, 3.4s TimeCoverageRelationStatistics Valid=1597, Invalid=9115, Unknown=0, NotChecked=0, Total=10712 [2024-11-28 04:02:21,133 INFO L435 NwaCegarLoop]: 1102 mSDtfsCounter, 3362 mSDsluCounter, 28941 mSDsCounter, 0 mSdLazyCounter, 17248 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3362 SdHoareTripleChecker+Valid, 30043 SdHoareTripleChecker+Invalid, 17256 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 17248 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:21,133 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3362 Valid, 30043 Invalid, 17256 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [8 Valid, 17248 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2024-11-28 04:02:21,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17810 states. [2024-11-28 04:02:21,279 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17810 to 12123. [2024-11-28 04:02:21,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12123 states, 12122 states have (on average 1.4105758125721828) internal successors, (17099), 12122 states have internal predecessors, (17099), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:21,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12123 states to 12123 states and 17099 transitions. [2024-11-28 04:02:21,298 INFO L78 Accepts]: Start accepts. Automaton has 12123 states and 17099 transitions. Word has length 391 [2024-11-28 04:02:21,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:21,299 INFO L471 AbstractCegarLoop]: Abstraction has 12123 states and 17099 transitions. [2024-11-28 04:02:21,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 44 states have (on average 25.84090909090909) internal successors, (1137), 44 states have internal predecessors, (1137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:21,299 INFO L276 IsEmpty]: Start isEmpty. Operand 12123 states and 17099 transitions. [2024-11-28 04:02:21,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-28 04:02:21,307 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:21,307 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:21,323 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 04:02:21,508 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:21,508 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:21,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:21,509 INFO L85 PathProgramCache]: Analyzing trace with hash -1573197437, now seen corresponding path program 1 times [2024-11-28 04:02:21,509 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:21,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474649849] [2024-11-28 04:02:21,509 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:21,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:22,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:23,497 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 97 proven. 2 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-28 04:02:23,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:23,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474649849] [2024-11-28 04:02:23,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [474649849] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:23,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2061576874] [2024-11-28 04:02:23,497 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:23,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:23,497 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:23,499 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:23,503 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:02:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:25,449 INFO L256 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:02:25,454 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:25,795 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 121 trivial. 0 not checked. [2024-11-28 04:02:25,795 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:02:25,795 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2061576874] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:25,795 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:02:25,796 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-11-28 04:02:25,796 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1731000946] [2024-11-28 04:02:25,796 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:25,796 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:02:25,796 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:25,797 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:02:25,797 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:02:25,797 INFO L87 Difference]: Start difference. First operand 12123 states and 17099 transitions. Second operand has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:25,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:25,937 INFO L93 Difference]: Finished difference Result 23491 states and 33122 transitions. [2024-11-28 04:02:25,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:02:25,938 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-11-28 04:02:25,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:25,947 INFO L225 Difference]: With dead ends: 23491 [2024-11-28 04:02:25,947 INFO L226 Difference]: Without dead ends: 12323 [2024-11-28 04:02:25,953 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:02:25,954 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 346 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:25,954 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2528 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:02:25,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12323 states. [2024-11-28 04:02:26,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12323 to 12323. [2024-11-28 04:02:26,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12323 states, 12322 states have (on average 1.4071579289076448) internal successors, (17339), 12322 states have internal predecessors, (17339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:26,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12323 states to 12323 states and 17339 transitions. [2024-11-28 04:02:26,174 INFO L78 Accepts]: Start accepts. Automaton has 12323 states and 17339 transitions. Word has length 391 [2024-11-28 04:02:26,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:26,175 INFO L471 AbstractCegarLoop]: Abstraction has 12323 states and 17339 transitions. [2024-11-28 04:02:26,175 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 38.857142857142854) internal successors, (272), 7 states have internal predecessors, (272), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:26,175 INFO L276 IsEmpty]: Start isEmpty. Operand 12323 states and 17339 transitions. [2024-11-28 04:02:26,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-28 04:02:26,183 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:26,183 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:26,198 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:02:26,384 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:26,384 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:26,384 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:26,385 INFO L85 PathProgramCache]: Analyzing trace with hash -1778819780, now seen corresponding path program 1 times [2024-11-28 04:02:26,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:26,385 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090699123] [2024-11-28 04:02:26,385 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:26,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:27,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:27,506 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 155 proven. 2 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 04:02:27,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090699123] [2024-11-28 04:02:27,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1090699123] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:27,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692029859] [2024-11-28 04:02:27,507 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:27,507 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:27,507 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:27,514 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:27,517 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:02:30,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:30,707 INFO L256 TraceCheckSpWp]: Trace formula consists of 2497 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:02:30,712 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:31,033 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 157 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2024-11-28 04:02:31,033 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:02:31,033 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692029859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:31,033 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:02:31,033 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 04:02:31,034 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446193796] [2024-11-28 04:02:31,034 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:31,034 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:02:31,034 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:31,035 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:02:31,035 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:02:31,035 INFO L87 Difference]: Start difference. First operand 12323 states and 17339 transitions. Second operand has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:31,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:31,151 INFO L93 Difference]: Finished difference Result 23123 states and 32628 transitions. [2024-11-28 04:02:31,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:02:31,151 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-11-28 04:02:31,151 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:31,164 INFO L225 Difference]: With dead ends: 23123 [2024-11-28 04:02:31,164 INFO L226 Difference]: Without dead ends: 12395 [2024-11-28 04:02:31,172 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 395 GetRequests, 390 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:02:31,172 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 345 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:31,172 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:02:31,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12395 states. [2024-11-28 04:02:31,293 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12395 to 12377. [2024-11-28 04:02:31,301 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12377 states, 12376 states have (on average 1.406835811247576) internal successors, (17411), 12376 states have internal predecessors, (17411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:31,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12377 states to 12377 states and 17411 transitions. [2024-11-28 04:02:31,313 INFO L78 Accepts]: Start accepts. Automaton has 12377 states and 17411 transitions. Word has length 391 [2024-11-28 04:02:31,313 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:31,313 INFO L471 AbstractCegarLoop]: Abstraction has 12377 states and 17411 transitions. [2024-11-28 04:02:31,313 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 66.0) internal successors, (330), 5 states have internal predecessors, (330), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:31,313 INFO L276 IsEmpty]: Start isEmpty. Operand 12377 states and 17411 transitions. [2024-11-28 04:02:31,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-28 04:02:31,326 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:31,327 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:02:31,350 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:02:31,527 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37,22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:31,527 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:31,528 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:31,528 INFO L85 PathProgramCache]: Analyzing trace with hash -637766077, now seen corresponding path program 1 times [2024-11-28 04:02:31,528 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:31,528 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [704937890] [2024-11-28 04:02:31,528 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:31,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:33,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:34,218 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-28 04:02:34,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:34,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [704937890] [2024-11-28 04:02:34,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [704937890] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:34,218 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:02:34,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:02:34,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769711853] [2024-11-28 04:02:34,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:34,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:02:34,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:34,220 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:02:34,220 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:02:34,220 INFO L87 Difference]: Start difference. First operand 12377 states and 17411 transitions. Second operand has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:34,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:34,409 INFO L93 Difference]: Finished difference Result 24591 states and 34620 transitions. [2024-11-28 04:02:34,410 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:02:34,410 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-11-28 04:02:34,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:34,419 INFO L225 Difference]: With dead ends: 24591 [2024-11-28 04:02:34,420 INFO L226 Difference]: Without dead ends: 12467 [2024-11-28 04:02:34,428 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:02:34,428 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 347 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:34,429 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 2476 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:02:34,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12467 states. [2024-11-28 04:02:34,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12467 to 12467. [2024-11-28 04:02:34,546 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12467 states, 12466 states have (on average 1.4053425316861865) internal successors, (17519), 12466 states have internal predecessors, (17519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:34,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12467 states to 12467 states and 17519 transitions. [2024-11-28 04:02:34,558 INFO L78 Accepts]: Start accepts. Automaton has 12467 states and 17519 transitions. Word has length 391 [2024-11-28 04:02:34,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:34,558 INFO L471 AbstractCegarLoop]: Abstraction has 12467 states and 17519 transitions. [2024-11-28 04:02:34,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.0) internal successors, (336), 7 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:34,559 INFO L276 IsEmpty]: Start isEmpty. Operand 12467 states and 17519 transitions. [2024-11-28 04:02:34,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 392 [2024-11-28 04:02:34,570 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:34,571 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:34,571 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2024-11-28 04:02:34,571 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:34,571 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:34,571 INFO L85 PathProgramCache]: Analyzing trace with hash -704326653, now seen corresponding path program 1 times [2024-11-28 04:02:34,571 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:34,572 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651914613] [2024-11-28 04:02:34,572 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:34,572 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:37,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:39,241 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 95 proven. 0 refuted. 0 times theorem prover too weak. 126 trivial. 0 not checked. [2024-11-28 04:02:39,241 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:39,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651914613] [2024-11-28 04:02:39,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651914613] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:02:39,242 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:02:39,242 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:02:39,242 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595118218] [2024-11-28 04:02:39,242 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:02:39,242 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:02:39,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:39,243 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:02:39,243 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:02:39,243 INFO L87 Difference]: Start difference. First operand 12467 states and 17519 transitions. Second operand has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:39,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:02:39,402 INFO L93 Difference]: Finished difference Result 23443 states and 33032 transitions. [2024-11-28 04:02:39,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:02:39,403 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 391 [2024-11-28 04:02:39,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:02:39,415 INFO L225 Difference]: With dead ends: 23443 [2024-11-28 04:02:39,415 INFO L226 Difference]: Without dead ends: 12589 [2024-11-28 04:02:39,423 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:02:39,423 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 854 mSDsluCounter, 1662 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 2183 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:02:39,424 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 2183 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:02:39,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12589 states. [2024-11-28 04:02:39,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12589 to 12589. [2024-11-28 04:02:39,537 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12589 states, 12588 states have (on average 1.4053860819828408) internal successors, (17691), 12588 states have internal predecessors, (17691), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:39,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12589 states to 12589 states and 17691 transitions. [2024-11-28 04:02:39,549 INFO L78 Accepts]: Start accepts. Automaton has 12589 states and 17691 transitions. Word has length 391 [2024-11-28 04:02:39,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:02:39,549 INFO L471 AbstractCegarLoop]: Abstraction has 12589 states and 17691 transitions. [2024-11-28 04:02:39,549 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.0) internal successors, (273), 7 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:02:39,549 INFO L276 IsEmpty]: Start isEmpty. Operand 12589 states and 17691 transitions. [2024-11-28 04:02:39,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:02:39,605 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:02:39,605 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:02:39,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2024-11-28 04:02:39,605 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:02:39,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:02:39,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1784110174, now seen corresponding path program 1 times [2024-11-28 04:02:39,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:02:39,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384573156] [2024-11-28 04:02:39,606 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:39,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:02:43,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:50,596 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 204 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:02:50,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:02:50,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384573156] [2024-11-28 04:02:50,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384573156] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:02:50,596 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1200513474] [2024-11-28 04:02:50,596 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:02:50,597 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:02:50,597 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:02:50,598 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:02:50,601 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:02:54,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:02:54,158 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 73 conjuncts are in the unsatisfiable core [2024-11-28 04:02:54,166 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:02:55,001 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 188 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:02:55,001 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:02:55,753 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 217 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:02:55,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1200513474] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:02:55,753 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:02:55,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 16, 11] total 51 [2024-11-28 04:02:55,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087113478] [2024-11-28 04:02:55,754 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:02:55,755 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2024-11-28 04:02:55,755 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:02:55,756 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2024-11-28 04:02:55,758 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=188, Invalid=2362, Unknown=0, NotChecked=0, Total=2550 [2024-11-28 04:02:55,758 INFO L87 Difference]: Start difference. First operand 12589 states and 17691 transitions. Second operand has 51 states, 51 states have (on average 19.372549019607842) internal successors, (988), 51 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:07,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:07,420 INFO L93 Difference]: Finished difference Result 36108 states and 50203 transitions. [2024-11-28 04:03:07,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 78 states. [2024-11-28 04:03:07,420 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 51 states have (on average 19.372549019607842) internal successors, (988), 51 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-28 04:03:07,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:07,438 INFO L225 Difference]: With dead ends: 36108 [2024-11-28 04:03:07,438 INFO L226 Difference]: Without dead ends: 25692 [2024-11-28 04:03:07,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 913 GetRequests, 786 SyntacticMatches, 2 SemanticMatches, 125 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4591 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=1042, Invalid=14960, Unknown=0, NotChecked=0, Total=16002 [2024-11-28 04:03:07,449 INFO L435 NwaCegarLoop]: 684 mSDtfsCounter, 3299 mSDsluCounter, 24053 mSDsCounter, 0 mSdLazyCounter, 14572 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3299 SdHoareTripleChecker+Valid, 24737 SdHoareTripleChecker+Invalid, 14579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 14572 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:07,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3299 Valid, 24737 Invalid, 14579 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [7 Valid, 14572 Invalid, 0 Unknown, 0 Unchecked, 8.1s Time] [2024-11-28 04:03:07,466 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25692 states. [2024-11-28 04:03:07,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25692 to 16791. [2024-11-28 04:03:07,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16791 states, 16790 states have (on average 1.39434187016081) internal successors, (23411), 16790 states have internal predecessors, (23411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:07,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16791 states to 16791 states and 23411 transitions. [2024-11-28 04:03:07,663 INFO L78 Accepts]: Start accepts. Automaton has 16791 states and 23411 transitions. Word has length 392 [2024-11-28 04:03:07,663 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:07,663 INFO L471 AbstractCegarLoop]: Abstraction has 16791 states and 23411 transitions. [2024-11-28 04:03:07,663 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 51 states have (on average 19.372549019607842) internal successors, (988), 51 states have internal predecessors, (988), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:07,664 INFO L276 IsEmpty]: Start isEmpty. Operand 16791 states and 23411 transitions. [2024-11-28 04:03:07,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:03:07,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:07,676 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:07,696 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Ended with exit code 0 [2024-11-28 04:03:07,877 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,23 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:07,877 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:07,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:07,877 INFO L85 PathProgramCache]: Analyzing trace with hash -2045986734, now seen corresponding path program 1 times [2024-11-28 04:03:07,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:07,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180528682] [2024-11-28 04:03:07,878 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:07,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:10,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:16,105 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 115 proven. 10 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-11-28 04:03:16,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:16,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180528682] [2024-11-28 04:03:16,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180528682] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:16,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [351509020] [2024-11-28 04:03:16,106 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:16,106 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:16,106 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:16,109 INFO L229 MonitoredProcess]: Starting monitored process 24 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:16,110 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-28 04:03:19,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:19,765 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 50 conjuncts are in the unsatisfiable core [2024-11-28 04:03:19,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:20,545 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 57 proven. 38 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-28 04:03:20,545 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:03:21,708 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 91 proven. 4 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2024-11-28 04:03:21,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [351509020] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:03:21,709 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:03:21,709 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 10, 11] total 37 [2024-11-28 04:03:21,709 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [200543280] [2024-11-28 04:03:21,709 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:03:21,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2024-11-28 04:03:21,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:21,711 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2024-11-28 04:03:21,711 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1141, Unknown=0, NotChecked=0, Total=1332 [2024-11-28 04:03:21,711 INFO L87 Difference]: Start difference. First operand 16791 states and 23411 transitions. Second operand has 37 states, 37 states have (on average 21.18918918918919) internal successors, (784), 37 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:28,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:28,344 INFO L93 Difference]: Finished difference Result 46755 states and 64778 transitions. [2024-11-28 04:03:28,345 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2024-11-28 04:03:28,345 INFO L78 Accepts]: Start accepts. Automaton has has 37 states, 37 states have (on average 21.18918918918919) internal successors, (784), 37 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-28 04:03:28,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:28,374 INFO L225 Difference]: With dead ends: 46755 [2024-11-28 04:03:28,374 INFO L226 Difference]: Without dead ends: 31837 [2024-11-28 04:03:28,388 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 848 GetRequests, 768 SyntacticMatches, 1 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1600 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=743, Invalid=5737, Unknown=0, NotChecked=0, Total=6480 [2024-11-28 04:03:28,388 INFO L435 NwaCegarLoop]: 608 mSDtfsCounter, 2470 mSDsluCounter, 15026 mSDsCounter, 0 mSdLazyCounter, 8439 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2470 SdHoareTripleChecker+Valid, 15634 SdHoareTripleChecker+Invalid, 8444 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 8439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:28,389 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2470 Valid, 15634 Invalid, 8444 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [5 Valid, 8439 Invalid, 0 Unknown, 0 Unchecked, 4.9s Time] [2024-11-28 04:03:28,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31837 states. [2024-11-28 04:03:28,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31837 to 18381. [2024-11-28 04:03:28,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18381 states, 18380 states have (on average 1.380032644178455) internal successors, (25365), 18380 states have internal predecessors, (25365), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:28,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18381 states to 18381 states and 25365 transitions. [2024-11-28 04:03:28,709 INFO L78 Accepts]: Start accepts. Automaton has 18381 states and 25365 transitions. Word has length 392 [2024-11-28 04:03:28,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:28,710 INFO L471 AbstractCegarLoop]: Abstraction has 18381 states and 25365 transitions. [2024-11-28 04:03:28,710 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 21.18918918918919) internal successors, (784), 37 states have internal predecessors, (784), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:28,710 INFO L276 IsEmpty]: Start isEmpty. Operand 18381 states and 25365 transitions. [2024-11-28 04:03:28,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:03:28,728 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:28,729 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:28,753 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-28 04:03:28,929 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41,24 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:28,929 INFO L396 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:28,930 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:28,930 INFO L85 PathProgramCache]: Analyzing trace with hash 728960281, now seen corresponding path program 1 times [2024-11-28 04:03:28,930 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:28,930 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [693148318] [2024-11-28 04:03:28,930 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:28,930 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:30,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:30,465 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 95 proven. 2 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-28 04:03:30,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:30,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [693148318] [2024-11-28 04:03:30,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [693148318] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:30,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1929893570] [2024-11-28 04:03:30,465 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:30,465 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:30,466 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:30,468 INFO L229 MonitoredProcess]: Starting monitored process 25 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:30,469 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-28 04:03:33,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:33,166 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:03:33,171 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:33,592 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 97 proven. 0 refuted. 0 times theorem prover too weak. 123 trivial. 0 not checked. [2024-11-28 04:03:33,592 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:33,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1929893570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:33,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:33,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 04:03:33,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228195588] [2024-11-28 04:03:33,593 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:33,595 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:33,595 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:33,596 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:33,596 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:33,596 INFO L87 Difference]: Start difference. First operand 18381 states and 25365 transitions. Second operand has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:33,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:33,921 INFO L93 Difference]: Finished difference Result 34821 states and 48094 transitions. [2024-11-28 04:03:33,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:03:33,922 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-28 04:03:33,922 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:33,937 INFO L225 Difference]: With dead ends: 34821 [2024-11-28 04:03:33,937 INFO L226 Difference]: Without dead ends: 18541 [2024-11-28 04:03:33,945 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 396 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:33,946 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 345 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:33,946 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:33,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18541 states. [2024-11-28 04:03:34,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18541 to 18501. [2024-11-28 04:03:34,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18501 states, 18500 states have (on average 1.3797297297297297) internal successors, (25525), 18500 states have internal predecessors, (25525), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:34,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18501 states to 18501 states and 25525 transitions. [2024-11-28 04:03:34,210 INFO L78 Accepts]: Start accepts. Automaton has 18501 states and 25525 transitions. Word has length 392 [2024-11-28 04:03:34,210 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:34,210 INFO L471 AbstractCegarLoop]: Abstraction has 18501 states and 25525 transitions. [2024-11-28 04:03:34,210 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 54.2) internal successors, (271), 5 states have internal predecessors, (271), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:34,210 INFO L276 IsEmpty]: Start isEmpty. Operand 18501 states and 25525 transitions. [2024-11-28 04:03:34,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:03:34,225 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:34,226 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:34,245 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-28 04:03:34,426 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42,25 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:34,426 INFO L396 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:34,427 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:34,427 INFO L85 PathProgramCache]: Analyzing trace with hash 707840114, now seen corresponding path program 1 times [2024-11-28 04:03:34,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:34,427 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030882459] [2024-11-28 04:03:34,427 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:34,427 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:36,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:36,890 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-28 04:03:36,890 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:36,890 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030882459] [2024-11-28 04:03:36,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030882459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:36,890 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:36,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:03:36,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1375690623] [2024-11-28 04:03:36,890 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:36,891 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:03:36,891 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:36,892 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:03:36,892 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:36,892 INFO L87 Difference]: Start difference. First operand 18501 states and 25525 transitions. Second operand has 7 states, 7 states have (on average 39.57142857142857) internal successors, (277), 7 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:37,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:37,140 INFO L93 Difference]: Finished difference Result 36173 states and 49878 transitions. [2024-11-28 04:03:37,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:37,141 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.57142857142857) internal successors, (277), 7 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-28 04:03:37,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:37,158 INFO L225 Difference]: With dead ends: 36173 [2024-11-28 04:03:37,158 INFO L226 Difference]: Without dead ends: 18701 [2024-11-28 04:03:37,171 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:37,171 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 346 mSDsluCounter, 1978 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2476 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:37,171 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2476 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:37,185 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18701 states. [2024-11-28 04:03:37,394 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18701 to 18701. [2024-11-28 04:03:37,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18701 states, 18700 states have (on average 1.377807486631016) internal successors, (25765), 18700 states have internal predecessors, (25765), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:37,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18701 states to 18701 states and 25765 transitions. [2024-11-28 04:03:37,433 INFO L78 Accepts]: Start accepts. Automaton has 18701 states and 25765 transitions. Word has length 392 [2024-11-28 04:03:37,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:37,433 INFO L471 AbstractCegarLoop]: Abstraction has 18701 states and 25765 transitions. [2024-11-28 04:03:37,433 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.57142857142857) internal successors, (277), 7 states have internal predecessors, (277), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:37,433 INFO L276 IsEmpty]: Start isEmpty. Operand 18701 states and 25765 transitions. [2024-11-28 04:03:37,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:03:37,449 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:37,449 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:37,449 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2024-11-28 04:03:37,449 INFO L396 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:37,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:37,450 INFO L85 PathProgramCache]: Analyzing trace with hash -336594868, now seen corresponding path program 1 times [2024-11-28 04:03:37,450 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:37,450 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1564085684] [2024-11-28 04:03:37,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:37,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:37,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:38,345 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2024-11-28 04:03:38,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:38,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1564085684] [2024-11-28 04:03:38,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1564085684] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:38,345 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:38,345 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:03:38,345 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007754298] [2024-11-28 04:03:38,346 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:38,346 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:38,346 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:38,347 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:38,347 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:38,347 INFO L87 Difference]: Start difference. First operand 18701 states and 25765 transitions. Second operand has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:38,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:38,809 INFO L93 Difference]: Finished difference Result 36465 states and 50202 transitions. [2024-11-28 04:03:38,810 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:03:38,810 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-28 04:03:38,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:38,828 INFO L225 Difference]: With dead ends: 36465 [2024-11-28 04:03:38,828 INFO L226 Difference]: Without dead ends: 18781 [2024-11-28 04:03:38,840 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:38,841 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 365 mSDsluCounter, 758 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1140 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:38,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1140 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:03:38,853 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18781 states. [2024-11-28 04:03:39,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18781 to 18781. [2024-11-28 04:03:39,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18781 states, 18780 states have (on average 1.3761980830670926) internal successors, (25845), 18780 states have internal predecessors, (25845), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:39,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18781 states to 18781 states and 25845 transitions. [2024-11-28 04:03:39,092 INFO L78 Accepts]: Start accepts. Automaton has 18781 states and 25845 transitions. Word has length 392 [2024-11-28 04:03:39,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:39,092 INFO L471 AbstractCegarLoop]: Abstraction has 18781 states and 25845 transitions. [2024-11-28 04:03:39,093 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 64.4) internal successors, (322), 5 states have internal predecessors, (322), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:39,093 INFO L276 IsEmpty]: Start isEmpty. Operand 18781 states and 25845 transitions. [2024-11-28 04:03:39,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:03:39,108 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:39,109 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:39,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2024-11-28 04:03:39,109 INFO L396 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:39,109 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:39,109 INFO L85 PathProgramCache]: Analyzing trace with hash 1799367287, now seen corresponding path program 1 times [2024-11-28 04:03:39,109 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:39,109 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178021733] [2024-11-28 04:03:39,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:39,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:40,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:41,538 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 127 proven. 2 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-28 04:03:41,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:41,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178021733] [2024-11-28 04:03:41,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178021733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:03:41,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1314022878] [2024-11-28 04:03:41,538 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:41,538 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:41,538 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:03:41,540 INFO L229 MonitoredProcess]: Starting monitored process 26 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:03:41,542 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-28 04:03:44,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:44,619 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:03:44,623 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:03:44,990 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2024-11-28 04:03:44,990 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:03:44,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1314022878] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:44,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:03:44,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-11-28 04:03:44,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [419034863] [2024-11-28 04:03:44,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:44,990 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:03:44,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:44,991 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:03:44,991 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:03:44,991 INFO L87 Difference]: Start difference. First operand 18781 states and 25845 transitions. Second operand has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:45,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:45,231 INFO L93 Difference]: Finished difference Result 37097 states and 51062 transitions. [2024-11-28 04:03:45,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:45,231 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-28 04:03:45,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:45,248 INFO L225 Difference]: With dead ends: 37097 [2024-11-28 04:03:45,249 INFO L226 Difference]: Without dead ends: 18961 [2024-11-28 04:03:45,260 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 398 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:03:45,261 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 346 mSDsluCounter, 2020 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2528 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:45,261 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2528 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:45,272 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18961 states. [2024-11-28 04:03:45,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18961 to 18961. [2024-11-28 04:03:45,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18961 states, 18960 states have (on average 1.3745253164556963) internal successors, (26061), 18960 states have internal predecessors, (26061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:45,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18961 states to 18961 states and 26061 transitions. [2024-11-28 04:03:45,525 INFO L78 Accepts]: Start accepts. Automaton has 18961 states and 26061 transitions. Word has length 392 [2024-11-28 04:03:45,525 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:45,525 INFO L471 AbstractCegarLoop]: Abstraction has 18961 states and 26061 transitions. [2024-11-28 04:03:45,525 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.285714285714285) internal successors, (303), 7 states have internal predecessors, (303), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:45,525 INFO L276 IsEmpty]: Start isEmpty. Operand 18961 states and 26061 transitions. [2024-11-28 04:03:45,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:03:45,540 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:45,541 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:03:45,562 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Ended with exit code 0 [2024-11-28 04:03:45,741 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45,26 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:03:45,741 INFO L396 AbstractCegarLoop]: === Iteration 47 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:45,742 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:45,742 INFO L85 PathProgramCache]: Analyzing trace with hash -580222788, now seen corresponding path program 1 times [2024-11-28 04:03:45,742 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:45,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [243736229] [2024-11-28 04:03:45,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:45,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:48,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:50,011 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:03:50,011 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:50,011 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [243736229] [2024-11-28 04:03:50,011 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [243736229] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:50,011 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:50,011 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:03:50,011 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767543948] [2024-11-28 04:03:50,011 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:50,012 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:03:50,012 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:50,012 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:03:50,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:03:50,013 INFO L87 Difference]: Start difference. First operand 18961 states and 26061 transitions. Second operand has 10 states, 10 states have (on average 39.2) internal successors, (392), 10 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:50,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:50,278 INFO L93 Difference]: Finished difference Result 35311 states and 48943 transitions. [2024-11-28 04:03:50,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:03:50,278 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 39.2) internal successors, (392), 10 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-28 04:03:50,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:50,294 INFO L225 Difference]: With dead ends: 35311 [2024-11-28 04:03:50,294 INFO L226 Difference]: Without dead ends: 20579 [2024-11-28 04:03:50,305 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:03:50,305 INFO L435 NwaCegarLoop]: 669 mSDtfsCounter, 336 mSDsluCounter, 5165 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 5834 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:50,305 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 5834 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:50,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20579 states. [2024-11-28 04:03:50,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20579 to 20273. [2024-11-28 04:03:50,572 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20273 states, 20272 states have (on average 1.3771211523283347) internal successors, (27917), 20272 states have internal predecessors, (27917), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:50,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20273 states to 20273 states and 27917 transitions. [2024-11-28 04:03:50,593 INFO L78 Accepts]: Start accepts. Automaton has 20273 states and 27917 transitions. Word has length 392 [2024-11-28 04:03:50,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:50,593 INFO L471 AbstractCegarLoop]: Abstraction has 20273 states and 27917 transitions. [2024-11-28 04:03:50,593 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 39.2) internal successors, (392), 10 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:50,594 INFO L276 IsEmpty]: Start isEmpty. Operand 20273 states and 27917 transitions. [2024-11-28 04:03:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:03:50,608 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:50,608 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:50,609 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2024-11-28 04:03:50,609 INFO L396 AbstractCegarLoop]: === Iteration 48 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:50,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:50,609 INFO L85 PathProgramCache]: Analyzing trace with hash -29054727, now seen corresponding path program 1 times [2024-11-28 04:03:50,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:50,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315495053] [2024-11-28 04:03:50,609 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:50,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:51,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:52,146 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 161 proven. 0 refuted. 0 times theorem prover too weak. 59 trivial. 0 not checked. [2024-11-28 04:03:52,146 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:52,146 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315495053] [2024-11-28 04:03:52,146 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [315495053] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:52,146 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:52,146 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:03:52,146 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1101568119] [2024-11-28 04:03:52,146 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:52,147 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:03:52,147 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:52,147 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:03:52,147 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:52,147 INFO L87 Difference]: Start difference. First operand 20273 states and 27917 transitions. Second operand has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:52,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:52,339 INFO L93 Difference]: Finished difference Result 40375 states and 55658 transitions. [2024-11-28 04:03:52,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:03:52,340 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-28 04:03:52,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:52,356 INFO L225 Difference]: With dead ends: 40375 [2024-11-28 04:03:52,357 INFO L226 Difference]: Without dead ends: 20477 [2024-11-28 04:03:52,368 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:03:52,369 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 344 mSDsluCounter, 997 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 344 SdHoareTripleChecker+Valid, 1500 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:52,369 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [344 Valid, 1500 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:03:52,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20477 states. [2024-11-28 04:03:52,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20477 to 20477. [2024-11-28 04:03:52,584 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20477 states, 20476 states have (on average 1.376684899394413) internal successors, (28189), 20476 states have internal predecessors, (28189), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:52,604 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20477 states to 20477 states and 28189 transitions. [2024-11-28 04:03:52,605 INFO L78 Accepts]: Start accepts. Automaton has 20477 states and 28189 transitions. Word has length 392 [2024-11-28 04:03:52,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:52,606 INFO L471 AbstractCegarLoop]: Abstraction has 20477 states and 28189 transitions. [2024-11-28 04:03:52,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 67.0) internal successors, (335), 5 states have internal predecessors, (335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:52,606 INFO L276 IsEmpty]: Start isEmpty. Operand 20477 states and 28189 transitions. [2024-11-28 04:03:52,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:03:52,622 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:52,622 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:52,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2024-11-28 04:03:52,622 INFO L396 AbstractCegarLoop]: === Iteration 49 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:52,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:52,623 INFO L85 PathProgramCache]: Analyzing trace with hash 2033917010, now seen corresponding path program 1 times [2024-11-28 04:03:52,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:52,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149671228] [2024-11-28 04:03:52,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:52,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:54,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:03:55,167 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 163 proven. 0 refuted. 0 times theorem prover too weak. 57 trivial. 0 not checked. [2024-11-28 04:03:55,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:03:55,167 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149671228] [2024-11-28 04:03:55,167 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [149671228] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:03:55,167 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:03:55,167 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:03:55,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [551627158] [2024-11-28 04:03:55,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:03:55,168 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:03:55,168 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:03:55,169 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:03:55,169 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:55,169 INFO L87 Difference]: Start difference. First operand 20477 states and 28189 transitions. Second operand has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:55,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:03:55,870 INFO L93 Difference]: Finished difference Result 41147 states and 56706 transitions. [2024-11-28 04:03:55,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:03:55,870 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-28 04:03:55,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:03:55,889 INFO L225 Difference]: With dead ends: 41147 [2024-11-28 04:03:55,889 INFO L226 Difference]: Without dead ends: 21021 [2024-11-28 04:03:55,901 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:03:55,902 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 347 mSDsluCounter, 1386 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1737 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:03:55,902 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1737 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:03:55,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21021 states. [2024-11-28 04:03:56,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21021 to 20681. [2024-11-28 04:03:56,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20681 states, 20680 states have (on average 1.376257253384913) internal successors, (28461), 20680 states have internal predecessors, (28461), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:56,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20681 states to 20681 states and 28461 transitions. [2024-11-28 04:03:56,251 INFO L78 Accepts]: Start accepts. Automaton has 20681 states and 28461 transitions. Word has length 392 [2024-11-28 04:03:56,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:03:56,251 INFO L471 AbstractCegarLoop]: Abstraction has 20681 states and 28461 transitions. [2024-11-28 04:03:56,252 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.142857142857146) internal successors, (337), 7 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:03:56,252 INFO L276 IsEmpty]: Start isEmpty. Operand 20681 states and 28461 transitions. [2024-11-28 04:03:56,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 393 [2024-11-28 04:03:56,267 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:03:56,267 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:03:56,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2024-11-28 04:03:56,268 INFO L396 AbstractCegarLoop]: === Iteration 50 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:03:56,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:03:56,268 INFO L85 PathProgramCache]: Analyzing trace with hash -1679260160, now seen corresponding path program 1 times [2024-11-28 04:03:56,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:03:56,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1009170912] [2024-11-28 04:03:56,268 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:03:56,268 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:03:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:01,705 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 177 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 04:04:01,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:01,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1009170912] [2024-11-28 04:04:01,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1009170912] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:01,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098877629] [2024-11-28 04:04:01,706 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:01,706 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:01,706 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:01,708 INFO L229 MonitoredProcess]: Starting monitored process 27 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:01,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-28 04:04:04,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:04,992 INFO L256 TraceCheckSpWp]: Trace formula consists of 2500 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-11-28 04:04:04,998 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:06,525 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 170 proven. 13 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-28 04:04:06,526 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:07,466 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 180 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:04:07,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098877629] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:07,466 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:04:07,466 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [10, 9] total 26 [2024-11-28 04:04:07,467 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [776443578] [2024-11-28 04:04:07,467 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:07,467 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 04:04:07,467 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:07,468 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 04:04:07,468 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=576, Unknown=0, NotChecked=0, Total=650 [2024-11-28 04:04:07,468 INFO L87 Difference]: Start difference. First operand 20681 states and 28461 transitions. Second operand has 11 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:09,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:09,125 INFO L93 Difference]: Finished difference Result 58791 states and 81351 transitions. [2024-11-28 04:04:09,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 04:04:09,126 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 392 [2024-11-28 04:04:09,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:09,159 INFO L225 Difference]: With dead ends: 58791 [2024-11-28 04:04:09,159 INFO L226 Difference]: Without dead ends: 42363 [2024-11-28 04:04:09,174 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 798 GetRequests, 771 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=101, Invalid=711, Unknown=0, NotChecked=0, Total=812 [2024-11-28 04:04:09,175 INFO L435 NwaCegarLoop]: 836 mSDtfsCounter, 1638 mSDsluCounter, 3174 mSDsCounter, 0 mSdLazyCounter, 1719 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1638 SdHoareTripleChecker+Valid, 4010 SdHoareTripleChecker+Invalid, 1722 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 1719 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:09,175 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1638 Valid, 4010 Invalid, 1722 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 1719 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-28 04:04:09,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42363 states. [2024-11-28 04:04:09,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42363 to 42361. [2024-11-28 04:04:09,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42361 states, 42360 states have (on average 1.379721435316336) internal successors, (58445), 42360 states have internal predecessors, (58445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:09,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42361 states to 42361 states and 58445 transitions. [2024-11-28 04:04:09,706 INFO L78 Accepts]: Start accepts. Automaton has 42361 states and 58445 transitions. Word has length 392 [2024-11-28 04:04:09,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:09,707 INFO L471 AbstractCegarLoop]: Abstraction has 42361 states and 58445 transitions. [2024-11-28 04:04:09,707 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 32.18181818181818) internal successors, (354), 11 states have internal predecessors, (354), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:09,707 INFO L276 IsEmpty]: Start isEmpty. Operand 42361 states and 58445 transitions. [2024-11-28 04:04:09,742 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:04:09,742 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:09,742 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:09,764 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:09,943 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable49 [2024-11-28 04:04:09,943 INFO L396 AbstractCegarLoop]: === Iteration 51 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:09,943 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:09,944 INFO L85 PathProgramCache]: Analyzing trace with hash -100879343, now seen corresponding path program 1 times [2024-11-28 04:04:09,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:09,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1119099189] [2024-11-28 04:04:09,944 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:09,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:14,968 INFO L134 CoverageAnalysis]: Checked inductivity of 221 backedges. 125 proven. 0 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-11-28 04:04:14,969 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:14,969 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1119099189] [2024-11-28 04:04:14,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1119099189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:14,969 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:14,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:04:14,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125295354] [2024-11-28 04:04:14,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:14,970 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:04:14,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:14,970 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:04:14,970 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:04:14,970 INFO L87 Difference]: Start difference. First operand 42361 states and 58445 transitions. Second operand has 7 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:15,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:15,382 INFO L93 Difference]: Finished difference Result 80587 states and 111514 transitions. [2024-11-28 04:04:15,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:04:15,383 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:04:15,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:15,421 INFO L225 Difference]: With dead ends: 80587 [2024-11-28 04:04:15,422 INFO L226 Difference]: Without dead ends: 42785 [2024-11-28 04:04:15,448 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2024-11-28 04:04:15,448 INFO L435 NwaCegarLoop]: 521 mSDtfsCounter, 1004 mSDsluCounter, 1752 mSDsCounter, 0 mSdLazyCounter, 67 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1004 SdHoareTripleChecker+Valid, 2273 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 67 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:15,449 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1004 Valid, 2273 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 67 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:04:15,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42785 states. [2024-11-28 04:04:16,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42785 to 42785. [2024-11-28 04:04:16,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42785 states, 42784 states have (on average 1.3802589753178758) internal successors, (59053), 42784 states have internal predecessors, (59053), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:16,248 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42785 states to 42785 states and 59053 transitions. [2024-11-28 04:04:16,250 INFO L78 Accepts]: Start accepts. Automaton has 42785 states and 59053 transitions. Word has length 393 [2024-11-28 04:04:16,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:16,250 INFO L471 AbstractCegarLoop]: Abstraction has 42785 states and 59053 transitions. [2024-11-28 04:04:16,250 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 43.857142857142854) internal successors, (307), 7 states have internal predecessors, (307), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:16,250 INFO L276 IsEmpty]: Start isEmpty. Operand 42785 states and 59053 transitions. [2024-11-28 04:04:16,290 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:04:16,290 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:16,291 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:16,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2024-11-28 04:04:16,291 INFO L396 AbstractCegarLoop]: === Iteration 52 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:16,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:16,291 INFO L85 PathProgramCache]: Analyzing trace with hash -1269388411, now seen corresponding path program 1 times [2024-11-28 04:04:16,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:16,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062496953] [2024-11-28 04:04:16,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:16,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:20,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:30,704 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 207 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:30,704 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:30,704 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062496953] [2024-11-28 04:04:30,705 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062496953] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:30,705 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [581466515] [2024-11-28 04:04:30,705 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:30,705 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:30,705 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:30,707 INFO L229 MonitoredProcess]: Starting monitored process 28 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:30,709 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-28 04:04:34,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:34,366 INFO L256 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-11-28 04:04:34,376 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:36,459 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 72 proven. 148 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:36,459 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:04:37,460 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 87 proven. 0 refuted. 0 times theorem prover too weak. 133 trivial. 0 not checked. [2024-11-28 04:04:37,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [581466515] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:37,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 04:04:37,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [27, 18] total 55 [2024-11-28 04:04:37,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621881455] [2024-11-28 04:04:37,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:37,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-28 04:04:37,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:37,462 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-28 04:04:37,463 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=240, Invalid=2730, Unknown=0, NotChecked=0, Total=2970 [2024-11-28 04:04:37,463 INFO L87 Difference]: Start difference. First operand 42785 states and 59053 transitions. Second operand has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:38,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:38,875 INFO L93 Difference]: Finished difference Result 85343 states and 118094 transitions. [2024-11-28 04:04:38,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-28 04:04:38,876 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:04:38,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:38,915 INFO L225 Difference]: With dead ends: 85343 [2024-11-28 04:04:38,915 INFO L226 Difference]: Without dead ends: 47105 [2024-11-28 04:04:38,939 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 820 GetRequests, 762 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1092 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=297, Invalid=3125, Unknown=0, NotChecked=0, Total=3422 [2024-11-28 04:04:38,940 INFO L435 NwaCegarLoop]: 506 mSDtfsCounter, 102 mSDsluCounter, 3866 mSDsCounter, 0 mSdLazyCounter, 1075 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 4372 SdHoareTripleChecker+Invalid, 1084 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 1075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:38,940 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 4372 Invalid, 1084 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 1075 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-28 04:04:38,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47105 states. [2024-11-28 04:04:39,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47105 to 45985. [2024-11-28 04:04:39,429 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 45985 states, 45984 states have (on average 1.3851122129436326) internal successors, (63693), 45984 states have internal predecessors, (63693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:39,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45985 states to 45985 states and 63693 transitions. [2024-11-28 04:04:39,478 INFO L78 Accepts]: Start accepts. Automaton has 45985 states and 63693 transitions. Word has length 393 [2024-11-28 04:04:39,478 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:39,478 INFO L471 AbstractCegarLoop]: Abstraction has 45985 states and 63693 transitions. [2024-11-28 04:04:39,478 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 18.714285714285715) internal successors, (262), 14 states have internal predecessors, (262), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:39,478 INFO L276 IsEmpty]: Start isEmpty. Operand 45985 states and 63693 transitions. [2024-11-28 04:04:39,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:04:39,512 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:39,512 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:39,533 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-11-28 04:04:39,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable51 [2024-11-28 04:04:39,713 INFO L396 AbstractCegarLoop]: === Iteration 53 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:39,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:39,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1685552396, now seen corresponding path program 1 times [2024-11-28 04:04:39,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:39,714 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851293218] [2024-11-28 04:04:39,714 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:39,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:41,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:41,932 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 67 proven. 2 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-28 04:04:41,932 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:41,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851293218] [2024-11-28 04:04:41,932 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1851293218] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:04:41,932 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [227469201] [2024-11-28 04:04:41,933 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:41,933 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:04:41,933 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:04:41,938 INFO L229 MonitoredProcess]: Starting monitored process 29 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:04:41,938 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-28 04:04:44,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:44,706 INFO L256 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-11-28 04:04:44,710 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:04:45,107 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 69 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-28 04:04:45,108 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:04:45,108 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [227469201] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:45,108 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:04:45,108 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-11-28 04:04:45,108 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504743233] [2024-11-28 04:04:45,108 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:45,109 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:04:45,109 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:45,109 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:04:45,109 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:04:45,110 INFO L87 Difference]: Start difference. First operand 45985 states and 63693 transitions. Second operand has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:45,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:45,577 INFO L93 Difference]: Finished difference Result 87743 states and 121390 transitions. [2024-11-28 04:04:45,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:04:45,578 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:04:45,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:45,616 INFO L225 Difference]: With dead ends: 87743 [2024-11-28 04:04:45,616 INFO L226 Difference]: Without dead ends: 46065 [2024-11-28 04:04:45,640 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 399 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:04:45,641 INFO L435 NwaCegarLoop]: 508 mSDtfsCounter, 346 mSDsluCounter, 2021 mSDsCounter, 0 mSdLazyCounter, 136 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2529 SdHoareTripleChecker+Invalid, 138 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 136 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:45,641 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2529 Invalid, 138 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 136 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:04:45,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46065 states. [2024-11-28 04:04:46,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46065 to 46065. [2024-11-28 04:04:46,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46065 states, 46064 states have (on average 1.3827066689822856) internal successors, (63693), 46064 states have internal predecessors, (63693), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:46,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46065 states to 46065 states and 63693 transitions. [2024-11-28 04:04:46,161 INFO L78 Accepts]: Start accepts. Automaton has 46065 states and 63693 transitions. Word has length 393 [2024-11-28 04:04:46,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:46,161 INFO L471 AbstractCegarLoop]: Abstraction has 46065 states and 63693 transitions. [2024-11-28 04:04:46,161 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 34.857142857142854) internal successors, (244), 7 states have internal predecessors, (244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:46,161 INFO L276 IsEmpty]: Start isEmpty. Operand 46065 states and 63693 transitions. [2024-11-28 04:04:46,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:04:46,195 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:46,196 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:46,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Ended with exit code 0 [2024-11-28 04:04:46,396 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 29 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable52 [2024-11-28 04:04:46,396 INFO L396 AbstractCegarLoop]: === Iteration 54 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:46,397 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:46,397 INFO L85 PathProgramCache]: Analyzing trace with hash -1832086649, now seen corresponding path program 1 times [2024-11-28 04:04:46,397 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:46,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446549584] [2024-11-28 04:04:46,397 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:46,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:48,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:50,295 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 220 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:04:50,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:50,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446549584] [2024-11-28 04:04:50,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446549584] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:50,296 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:50,296 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-11-28 04:04:50,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56945931] [2024-11-28 04:04:50,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:50,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 04:04:50,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:50,297 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 04:04:50,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2024-11-28 04:04:50,298 INFO L87 Difference]: Start difference. First operand 46065 states and 63693 transitions. Second operand has 10 states, 10 states have (on average 39.3) internal successors, (393), 10 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:50,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:50,757 INFO L93 Difference]: Finished difference Result 96893 states and 134895 transitions. [2024-11-28 04:04:50,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 04:04:50,758 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 39.3) internal successors, (393), 10 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:04:50,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:50,813 INFO L225 Difference]: With dead ends: 96893 [2024-11-28 04:04:50,813 INFO L226 Difference]: Without dead ends: 60223 [2024-11-28 04:04:50,841 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2024-11-28 04:04:50,841 INFO L435 NwaCegarLoop]: 834 mSDtfsCounter, 336 mSDsluCounter, 5818 mSDsCounter, 0 mSdLazyCounter, 158 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 336 SdHoareTripleChecker+Valid, 6652 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 158 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:50,841 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [336 Valid, 6652 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 158 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:04:50,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60223 states. [2024-11-28 04:04:51,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60223 to 59005. [2024-11-28 04:04:51,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59005 states, 59004 states have (on average 1.3850755880957224) internal successors, (81725), 59004 states have internal predecessors, (81725), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:51,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59005 states to 59005 states and 81725 transitions. [2024-11-28 04:04:51,670 INFO L78 Accepts]: Start accepts. Automaton has 59005 states and 81725 transitions. Word has length 393 [2024-11-28 04:04:51,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:51,670 INFO L471 AbstractCegarLoop]: Abstraction has 59005 states and 81725 transitions. [2024-11-28 04:04:51,671 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 39.3) internal successors, (393), 10 states have internal predecessors, (393), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:51,671 INFO L276 IsEmpty]: Start isEmpty. Operand 59005 states and 81725 transitions. [2024-11-28 04:04:51,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:04:51,725 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:51,725 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:51,725 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2024-11-28 04:04:51,725 INFO L396 AbstractCegarLoop]: === Iteration 55 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:51,726 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:51,726 INFO L85 PathProgramCache]: Analyzing trace with hash 574857578, now seen corresponding path program 1 times [2024-11-28 04:04:51,726 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:51,726 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579058051] [2024-11-28 04:04:51,726 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:51,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:53,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:53,631 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 101 proven. 0 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-11-28 04:04:53,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:53,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579058051] [2024-11-28 04:04:53,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1579058051] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:53,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:53,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:04:53,631 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [769233371] [2024-11-28 04:04:53,631 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:53,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:04:53,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:53,633 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:04:53,633 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:53,633 INFO L87 Difference]: Start difference. First operand 59005 states and 81725 transitions. Second operand has 5 states, 5 states have (on average 55.2) internal successors, (276), 5 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:54,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:54,103 INFO L93 Difference]: Finished difference Result 115791 states and 160382 transitions. [2024-11-28 04:04:54,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:04:54,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 5 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:04:54,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:54,164 INFO L225 Difference]: With dead ends: 115791 [2024-11-28 04:04:54,164 INFO L226 Difference]: Without dead ends: 59437 [2024-11-28 04:04:54,203 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:04:54,203 INFO L435 NwaCegarLoop]: 503 mSDtfsCounter, 342 mSDsluCounter, 999 mSDsCounter, 0 mSdLazyCounter, 101 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 342 SdHoareTripleChecker+Valid, 1502 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 101 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:54,203 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [342 Valid, 1502 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 101 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:04:54,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 59437 states. [2024-11-28 04:04:55,139 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 59437 to 59437. [2024-11-28 04:04:55,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59437 states, 59436 states have (on average 1.3846995087152567) internal successors, (82301), 59436 states have internal predecessors, (82301), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:55,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59437 states to 59437 states and 82301 transitions. [2024-11-28 04:04:55,248 INFO L78 Accepts]: Start accepts. Automaton has 59437 states and 82301 transitions. Word has length 393 [2024-11-28 04:04:55,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:04:55,248 INFO L471 AbstractCegarLoop]: Abstraction has 59437 states and 82301 transitions. [2024-11-28 04:04:55,248 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.2) internal successors, (276), 5 states have internal predecessors, (276), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:55,248 INFO L276 IsEmpty]: Start isEmpty. Operand 59437 states and 82301 transitions. [2024-11-28 04:04:55,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:04:55,304 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:04:55,305 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:04:55,305 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2024-11-28 04:04:55,305 INFO L396 AbstractCegarLoop]: === Iteration 56 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:04:55,305 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:04:55,305 INFO L85 PathProgramCache]: Analyzing trace with hash -2084432463, now seen corresponding path program 1 times [2024-11-28 04:04:55,306 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:04:55,306 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078507264] [2024-11-28 04:04:55,306 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:04:55,306 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:04:56,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:04:57,510 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2024-11-28 04:04:57,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:04:57,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078507264] [2024-11-28 04:04:57,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078507264] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:04:57,510 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:04:57,510 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:04:57,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1198473637] [2024-11-28 04:04:57,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:04:57,511 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:04:57,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:04:57,512 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:04:57,512 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:04:57,512 INFO L87 Difference]: Start difference. First operand 59437 states and 82301 transitions. Second operand has 7 states, 7 states have (on average 39.714285714285715) internal successors, (278), 7 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:04:58,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:04:58,503 INFO L93 Difference]: Finished difference Result 117471 states and 162654 transitions. [2024-11-28 04:04:58,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:04:58,503 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 39.714285714285715) internal successors, (278), 7 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:04:58,504 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:04:58,587 INFO L225 Difference]: With dead ends: 117471 [2024-11-28 04:04:58,587 INFO L226 Difference]: Without dead ends: 60589 [2024-11-28 04:04:58,629 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:04:58,629 INFO L435 NwaCegarLoop]: 351 mSDtfsCounter, 347 mSDsluCounter, 1388 mSDsCounter, 0 mSdLazyCounter, 958 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 1739 SdHoareTripleChecker+Invalid, 959 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 958 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 04:04:58,630 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 1739 Invalid, 959 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 958 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 04:04:58,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60589 states. [2024-11-28 04:04:59,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60589 to 59869. [2024-11-28 04:04:59,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 59869 states, 59868 states have (on average 1.3843288568183336) internal successors, (82877), 59868 states have internal predecessors, (82877), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:00,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 59869 states to 59869 states and 82877 transitions. [2024-11-28 04:05:00,038 INFO L78 Accepts]: Start accepts. Automaton has 59869 states and 82877 transitions. Word has length 393 [2024-11-28 04:05:00,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:00,039 INFO L471 AbstractCegarLoop]: Abstraction has 59869 states and 82877 transitions. [2024-11-28 04:05:00,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 39.714285714285715) internal successors, (278), 7 states have internal predecessors, (278), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:00,039 INFO L276 IsEmpty]: Start isEmpty. Operand 59869 states and 82877 transitions. [2024-11-28 04:05:00,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:05:00,103 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:00,104 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:00,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2024-11-28 04:05:00,104 INFO L396 AbstractCegarLoop]: === Iteration 57 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:00,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:00,104 INFO L85 PathProgramCache]: Analyzing trace with hash -316991293, now seen corresponding path program 1 times [2024-11-28 04:05:00,104 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:00,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1549034233] [2024-11-28 04:05:00,105 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:00,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:00,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:01,027 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 121 proven. 0 refuted. 0 times theorem prover too weak. 99 trivial. 0 not checked. [2024-11-28 04:05:01,027 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:01,027 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1549034233] [2024-11-28 04:05:01,027 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1549034233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:01,027 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:01,028 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-28 04:05:01,028 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [307153406] [2024-11-28 04:05:01,028 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:01,028 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:05:01,028 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:01,029 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:05:01,029 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:05:01,029 INFO L87 Difference]: Start difference. First operand 59869 states and 82877 transitions. Second operand has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:01,395 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:01,395 INFO L93 Difference]: Finished difference Result 118127 states and 163478 transitions. [2024-11-28 04:05:01,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:05:01,396 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:05:01,396 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:01,480 INFO L225 Difference]: With dead ends: 118127 [2024-11-28 04:05:01,480 INFO L226 Difference]: Without dead ends: 60093 [2024-11-28 04:05:01,522 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:05:01,522 INFO L435 NwaCegarLoop]: 531 mSDtfsCounter, 0 mSDsluCounter, 1052 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 1583 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:01,523 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 1583 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:05:01,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60093 states. [2024-11-28 04:05:02,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60093 to 60093. [2024-11-28 04:05:02,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60093 states, 60092 states have (on average 1.3828962257871265) internal successors, (83101), 60092 states have internal predecessors, (83101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:02,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60093 states to 60093 states and 83101 transitions. [2024-11-28 04:05:02,668 INFO L78 Accepts]: Start accepts. Automaton has 60093 states and 83101 transitions. Word has length 393 [2024-11-28 04:05:02,668 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:02,668 INFO L471 AbstractCegarLoop]: Abstraction has 60093 states and 83101 transitions. [2024-11-28 04:05:02,669 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:02,669 INFO L276 IsEmpty]: Start isEmpty. Operand 60093 states and 83101 transitions. [2024-11-28 04:05:02,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:05:02,774 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:02,774 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:02,775 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2024-11-28 04:05:02,775 INFO L396 AbstractCegarLoop]: === Iteration 58 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:02,775 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:02,776 INFO L85 PathProgramCache]: Analyzing trace with hash 1561799306, now seen corresponding path program 1 times [2024-11-28 04:05:02,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:02,776 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [628251863] [2024-11-28 04:05:02,776 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:02,776 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:03,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:04,344 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 125 proven. 2 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-28 04:05:04,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:04,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [628251863] [2024-11-28 04:05:04,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [628251863] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:04,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52286317] [2024-11-28 04:05:04,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:04,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:04,345 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:04,347 INFO L229 MonitoredProcess]: Starting monitored process 30 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:04,348 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-28 04:05:07,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:07,662 INFO L256 TraceCheckSpWp]: Trace formula consists of 2503 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 04:05:07,667 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:08,046 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 127 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2024-11-28 04:05:08,046 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:05:08,046 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52286317] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:08,047 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:05:08,047 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2024-11-28 04:05:08,047 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1160973452] [2024-11-28 04:05:08,047 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:08,047 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:08,047 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:08,048 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:08,048 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:05:08,048 INFO L87 Difference]: Start difference. First operand 60093 states and 83101 transitions. Second operand has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:08,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:08,570 INFO L93 Difference]: Finished difference Result 114819 states and 159210 transitions. [2024-11-28 04:05:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:05:08,571 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:05:08,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:08,622 INFO L225 Difference]: With dead ends: 114819 [2024-11-28 04:05:08,622 INFO L226 Difference]: Without dead ends: 60541 [2024-11-28 04:05:08,651 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 397 GetRequests, 392 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:05:08,651 INFO L435 NwaCegarLoop]: 513 mSDtfsCounter, 345 mSDsluCounter, 1018 mSDsCounter, 0 mSdLazyCounter, 72 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 1531 SdHoareTripleChecker+Invalid, 72 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 72 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:08,652 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 1531 Invalid, 72 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:05:08,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60541 states. [2024-11-28 04:05:09,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60541 to 60429. [2024-11-28 04:05:09,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60429 states, 60428 states have (on average 1.3826206394386709) internal successors, (83549), 60428 states have internal predecessors, (83549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:09,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60429 states to 60429 states and 83549 transitions. [2024-11-28 04:05:09,495 INFO L78 Accepts]: Start accepts. Automaton has 60429 states and 83549 transitions. Word has length 393 [2024-11-28 04:05:09,496 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:09,496 INFO L471 AbstractCegarLoop]: Abstraction has 60429 states and 83549 transitions. [2024-11-28 04:05:09,496 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 60.4) internal successors, (302), 5 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:09,496 INFO L276 IsEmpty]: Start isEmpty. Operand 60429 states and 83549 transitions. [2024-11-28 04:05:09,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:05:09,746 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:09,747 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:09,770 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-28 04:05:09,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable57 [2024-11-28 04:05:09,947 INFO L396 AbstractCegarLoop]: === Iteration 59 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:09,948 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:09,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1579697169, now seen corresponding path program 1 times [2024-11-28 04:05:09,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:09,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020109003] [2024-11-28 04:05:09,948 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:09,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:12,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:13,039 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 133 proven. 0 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-11-28 04:05:13,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:13,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020109003] [2024-11-28 04:05:13,039 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1020109003] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:13,039 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:13,040 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-28 04:05:13,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293595952] [2024-11-28 04:05:13,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:13,040 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:05:13,040 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:13,041 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:05:13,041 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:05:13,041 INFO L87 Difference]: Start difference. First operand 60429 states and 83549 transitions. Second operand has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:13,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:13,592 INFO L93 Difference]: Finished difference Result 120087 states and 166070 transitions. [2024-11-28 04:05:13,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:05:13,593 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:05:13,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:13,655 INFO L225 Difference]: With dead ends: 120087 [2024-11-28 04:05:13,655 INFO L226 Difference]: Without dead ends: 60989 [2024-11-28 04:05:13,694 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-28 04:05:13,694 INFO L435 NwaCegarLoop]: 498 mSDtfsCounter, 346 mSDsluCounter, 1979 mSDsCounter, 0 mSdLazyCounter, 186 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 2477 SdHoareTripleChecker+Invalid, 188 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 186 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:13,694 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 2477 Invalid, 188 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 186 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:05:13,730 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60989 states. [2024-11-28 04:05:14,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60989 to 60989. [2024-11-28 04:05:14,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 60989 states, 60988 states have (on average 1.3809437922214205) internal successors, (84221), 60988 states have internal predecessors, (84221), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:14,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 60989 states to 60989 states and 84221 transitions. [2024-11-28 04:05:14,681 INFO L78 Accepts]: Start accepts. Automaton has 60989 states and 84221 transitions. Word has length 393 [2024-11-28 04:05:14,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:14,681 INFO L471 AbstractCegarLoop]: Abstraction has 60989 states and 84221 transitions. [2024-11-28 04:05:14,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 44.0) internal successors, (308), 7 states have internal predecessors, (308), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:14,681 INFO L276 IsEmpty]: Start isEmpty. Operand 60989 states and 84221 transitions. [2024-11-28 04:05:14,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:05:14,736 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:14,736 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:14,736 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2024-11-28 04:05:14,737 INFO L396 AbstractCegarLoop]: === Iteration 60 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:14,737 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:14,737 INFO L85 PathProgramCache]: Analyzing trace with hash -111568649, now seen corresponding path program 1 times [2024-11-28 04:05:14,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:14,737 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [594285410] [2024-11-28 04:05:14,737 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:14,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:14,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:15,832 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 179 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-28 04:05:15,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:15,833 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [594285410] [2024-11-28 04:05:15,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [594285410] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:05:15,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 04:05:15,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 04:05:15,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [704552805] [2024-11-28 04:05:15,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:05:15,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 04:05:15,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:15,834 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 04:05:15,834 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:15,834 INFO L87 Difference]: Start difference. First operand 60989 states and 84221 transitions. Second operand has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:16,556 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:16,556 INFO L93 Difference]: Finished difference Result 120879 states and 166918 transitions. [2024-11-28 04:05:16,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 04:05:16,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:05:16,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:16,611 INFO L225 Difference]: With dead ends: 120879 [2024-11-28 04:05:16,611 INFO L226 Difference]: Without dead ends: 61197 [2024-11-28 04:05:16,644 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:05:16,644 INFO L435 NwaCegarLoop]: 382 mSDtfsCounter, 365 mSDsluCounter, 759 mSDsCounter, 0 mSdLazyCounter, 458 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 365 SdHoareTripleChecker+Valid, 1141 SdHoareTripleChecker+Invalid, 460 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 458 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:16,644 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [365 Valid, 1141 Invalid, 460 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 458 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 04:05:16,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61197 states. [2024-11-28 04:05:17,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61197 to 61197. [2024-11-28 04:05:17,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61197 states, 61196 states have (on average 1.3796489966664487) internal successors, (84429), 61196 states have internal predecessors, (84429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:17,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61197 states to 61197 states and 84429 transitions. [2024-11-28 04:05:17,604 INFO L78 Accepts]: Start accepts. Automaton has 61197 states and 84429 transitions. Word has length 393 [2024-11-28 04:05:17,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:05:17,604 INFO L471 AbstractCegarLoop]: Abstraction has 61197 states and 84429 transitions. [2024-11-28 04:05:17,604 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 70.6) internal successors, (353), 5 states have internal predecessors, (353), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:17,604 INFO L276 IsEmpty]: Start isEmpty. Operand 61197 states and 84429 transitions. [2024-11-28 04:05:17,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 394 [2024-11-28 04:05:17,680 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:05:17,680 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 04:05:17,680 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2024-11-28 04:05:17,680 INFO L396 AbstractCegarLoop]: === Iteration 61 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:05:17,681 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:05:17,681 INFO L85 PathProgramCache]: Analyzing trace with hash 238281799, now seen corresponding path program 1 times [2024-11-28 04:05:17,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:05:17,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [679178319] [2024-11-28 04:05:17,681 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:17,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:05:20,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:21,201 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 155 proven. 4 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2024-11-28 04:05:21,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:05:21,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [679178319] [2024-11-28 04:05:21,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [679178319] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:05:21,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [591932304] [2024-11-28 04:05:21,201 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:05:21,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:05:21,201 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:05:21,203 INFO L229 MonitoredProcess]: Starting monitored process 31 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:05:21,204 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_62f685b6-4091-487c-a18c-bce36afa3312/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-28 04:05:26,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:05:26,084 INFO L256 TraceCheckSpWp]: Trace formula consists of 2501 conjuncts, 116 conjuncts are in the unsatisfiable core [2024-11-28 04:05:26,094 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:05:29,139 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 161 proven. 59 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:29,139 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:05:32,550 INFO L134 CoverageAnalysis]: Checked inductivity of 220 backedges. 186 proven. 34 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-28 04:05:32,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [591932304] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:05:32,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:05:32,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 22, 17] total 42 [2024-11-28 04:05:32,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [154037668] [2024-11-28 04:05:32,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:05:32,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-28 04:05:32,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:05:32,552 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-28 04:05:32,552 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=133, Invalid=1589, Unknown=0, NotChecked=0, Total=1722 [2024-11-28 04:05:32,552 INFO L87 Difference]: Start difference. First operand 61197 states and 84429 transitions. Second operand has 42 states, 42 states have (on average 23.333333333333332) internal successors, (980), 42 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-28 04:05:43,623 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:05:43,623 INFO L93 Difference]: Finished difference Result 198347 states and 276536 transitions. [2024-11-28 04:05:43,624 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2024-11-28 04:05:43,624 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 23.333333333333332) internal successors, (980), 42 states have internal predecessors, (980), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 393 [2024-11-28 04:05:43,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:05:43,754 INFO L225 Difference]: With dead ends: 198347 [2024-11-28 04:05:43,754 INFO L226 Difference]: Without dead ends: 137445 [2024-11-28 04:05:43,808 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 893 GetRequests, 783 SyntacticMatches, 0 SemanticMatches, 110 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3145 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=895, Invalid=11537, Unknown=0, NotChecked=0, Total=12432 [2024-11-28 04:05:43,809 INFO L435 NwaCegarLoop]: 251 mSDtfsCounter, 4362 mSDsluCounter, 7764 mSDsCounter, 0 mSdLazyCounter, 9574 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 8015 SdHoareTripleChecker+Invalid, 9597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 9574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2024-11-28 04:05:43,809 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4362 Valid, 8015 Invalid, 9597 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [23 Valid, 9574 Invalid, 0 Unknown, 0 Unchecked, 6.4s Time] [2024-11-28 04:05:43,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137445 states.