./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.02.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0e0057cc Calling Ultimate with: /usr/lib/jvm/java-11-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/config/AutomizerReach.xml -i ../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.02.cil-1.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8d5f2743e51cbbe46f8de63e434497edb332f77d30ade744101224af0fe29fdc --- Real Ultimate output --- This is Ultimate 0.2.4-dev-0e0057c [2023-11-29 05:02:01,499 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-29 05:02:01,564 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/config/svcomp-Reach-32bit-Automizer_Default.epf [2023-11-29 05:02:01,569 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-29 05:02:01,570 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-29 05:02:01,593 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-29 05:02:01,594 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-29 05:02:01,595 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-29 05:02:01,595 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-11-29 05:02:01,596 INFO L153 SettingsManager]: * Use memory slicer=true [2023-11-29 05:02:01,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-29 05:02:01,597 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-29 05:02:01,598 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-29 05:02:01,598 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-29 05:02:01,599 INFO L153 SettingsManager]: * Use SBE=true [2023-11-29 05:02:01,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-29 05:02:01,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-29 05:02:01,600 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-29 05:02:01,601 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-29 05:02:01,601 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-29 05:02:01,602 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-29 05:02:01,602 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-29 05:02:01,603 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-29 05:02:01,603 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-29 05:02:01,604 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-29 05:02:01,604 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-29 05:02:01,605 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-29 05:02:01,605 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-29 05:02:01,606 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-29 05:02:01,606 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-11-29 05:02:01,607 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-29 05:02:01,607 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:02:01,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-29 05:02:01,608 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-29 05:02:01,608 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-29 05:02:01,608 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-29 05:02:01,609 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-29 05:02:01,609 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-29 05:02:01,609 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-11-29 05:02:01,609 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-29 05:02:01,610 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-11-29 05:02:01,610 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-11-29 05:02:01,610 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8d5f2743e51cbbe46f8de63e434497edb332f77d30ade744101224af0fe29fdc [2023-11-29 05:02:01,832 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-29 05:02:01,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-29 05:02:01,854 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-29 05:02:01,855 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-29 05:02:01,855 INFO L274 PluginConnector]: CDTParser initialized [2023-11-29 05:02:01,856 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/../../sv-benchmarks/c/combinations/Problem05_label44+token_ring.02.cil-1.c [2023-11-29 05:02:04,572 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-29 05:02:05,118 INFO L384 CDTParser]: Found 1 translation units. [2023-11-29 05:02:05,118 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/sv-benchmarks/c/combinations/Problem05_label44+token_ring.02.cil-1.c [2023-11-29 05:02:05,160 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/data/5aa4ce4c4/3a0f117c0a944f9fb3b0cec71256efa6/FLAGa9ccf7311 [2023-11-29 05:02:05,174 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/data/5aa4ce4c4/3a0f117c0a944f9fb3b0cec71256efa6 [2023-11-29 05:02:05,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-29 05:02:05,178 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-29 05:02:05,180 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-29 05:02:05,180 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-29 05:02:05,186 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-29 05:02:05,187 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:02:05" (1/1) ... [2023-11-29 05:02:05,188 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ebfd12 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:05, skipping insertion in model container [2023-11-29 05:02:05,188 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 29.11 05:02:05" (1/1) ... [2023-11-29 05:02:05,462 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-29 05:02:07,342 WARN L240 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_168cd740-d2c5-4e57-83a8-d025a8261d32/sv-benchmarks/c/combinations/Problem05_label44+token_ring.02.cil-1.c[377340,377353] [2023-11-29 05:02:07,368 WARN L240 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_168cd740-d2c5-4e57-83a8-d025a8261d32/sv-benchmarks/c/combinations/Problem05_label44+token_ring.02.cil-1.c[383339,383352] [2023-11-29 05:02:07,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:02:07,522 INFO L202 MainTranslator]: Completed pre-run [2023-11-29 05:02:08,525 WARN L240 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_168cd740-d2c5-4e57-83a8-d025a8261d32/sv-benchmarks/c/combinations/Problem05_label44+token_ring.02.cil-1.c[377340,377353] [2023-11-29 05:02:08,535 WARN L240 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_168cd740-d2c5-4e57-83a8-d025a8261d32/sv-benchmarks/c/combinations/Problem05_label44+token_ring.02.cil-1.c[383339,383352] [2023-11-29 05:02:08,545 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-29 05:02:08,606 INFO L206 MainTranslator]: Completed translation [2023-11-29 05:02:08,606 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08 WrapperNode [2023-11-29 05:02:08,606 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-29 05:02:08,607 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-29 05:02:08,607 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-29 05:02:08,608 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-29 05:02:08,613 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:08,683 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,019 INFO L138 Inliner]: procedures = 48, calls = 47, calls flagged for inlining = 26, calls inlined = 26, statements flattened = 12628 [2023-11-29 05:02:09,019 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-29 05:02:09,020 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-29 05:02:09,020 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-29 05:02:09,020 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-29 05:02:09,031 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,032 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,085 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,148 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]. [2023-11-29 05:02:09,148 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,149 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,338 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,401 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,426 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,447 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,509 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-29 05:02:09,510 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-29 05:02:09,510 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-29 05:02:09,510 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-29 05:02:09,511 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (1/1) ... [2023-11-29 05:02:09,517 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-11-29 05:02:09,529 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:09,542 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2023-11-29 05:02:09,545 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2023-11-29 05:02:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-29 05:02:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2023-11-29 05:02:09,576 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2023-11-29 05:02:09,576 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2023-11-29 05:02:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2023-11-29 05:02:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2023-11-29 05:02:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2023-11-29 05:02:09,577 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2023-11-29 05:02:09,577 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2023-11-29 05:02:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2023-11-29 05:02:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2023-11-29 05:02:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-11-29 05:02:09,578 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2023-11-29 05:02:09,578 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2023-11-29 05:02:09,579 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-29 05:02:09,579 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-29 05:02:09,673 INFO L241 CfgBuilder]: Building ICFG [2023-11-29 05:02:09,675 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-29 05:02:17,519 INFO L282 CfgBuilder]: Performing block encoding [2023-11-29 05:02:17,673 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-29 05:02:17,673 INFO L309 CfgBuilder]: Removed 6 assume(true) statements. [2023-11-29 05:02:17,675 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:02:17 BoogieIcfgContainer [2023-11-29 05:02:17,675 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-29 05:02:17,678 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-29 05:02:17,678 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-29 05:02:17,681 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-29 05:02:17,682 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 29.11 05:02:05" (1/3) ... [2023-11-29 05:02:17,682 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266b7626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:02:17, skipping insertion in model container [2023-11-29 05:02:17,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 29.11 05:02:08" (2/3) ... [2023-11-29 05:02:17,683 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@266b7626 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.11 05:02:17, skipping insertion in model container [2023-11-29 05:02:17,683 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.11 05:02:17" (3/3) ... [2023-11-29 05:02:17,685 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label44+token_ring.02.cil-1.c [2023-11-29 05:02:17,705 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-29 05:02:17,706 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-11-29 05:02:17,801 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-11-29 05:02:17,808 INFO L357 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, mHoare=true, 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;@3b8e7757, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-29 05:02:17,808 INFO L358 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2023-11-29 05:02:17,822 INFO L276 IsEmpty]: Start isEmpty. Operand has 2241 states, 2216 states have (on average 1.8858303249097472) internal successors, (4179), 2219 states have internal predecessors, (4179), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) [2023-11-29 05:02:17,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:02:17,835 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:17,836 INFO L195 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, 1, 1, 1] [2023-11-29 05:02:17,836 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:17,841 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:17,842 INFO L85 PathProgramCache]: Analyzing trace with hash -584044612, now seen corresponding path program 1 times [2023-11-29 05:02:17,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:17,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [343670624] [2023-11-29 05:02:17,852 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:17,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:17,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:18,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:18,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:18,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:18,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:18,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:18,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:18,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:18,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:18,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:18,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:18,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:02:18,276 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:18,276 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [343670624] [2023-11-29 05:02:18,277 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [343670624] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:18,277 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:02:18,277 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:02:18,279 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935129906] [2023-11-29 05:02:18,279 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:18,283 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:02:18,283 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:18,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:02:18,308 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:02:18,315 INFO L87 Difference]: Start difference. First operand has 2241 states, 2216 states have (on average 1.8858303249097472) internal successors, (4179), 2219 states have internal predecessors, (4179), 16 states have call successors, (16), 6 states have call predecessors, (16), 6 states have return successors, (16), 16 states have call predecessors, (16), 16 states have call successors, (16) Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:19,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:19,381 INFO L93 Difference]: Finished difference Result 4643 states and 8686 transitions. [2023-11-29 05:02:19,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:02:19,384 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-11-29 05:02:19,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:19,412 INFO L225 Difference]: With dead ends: 4643 [2023-11-29 05:02:19,412 INFO L226 Difference]: Without dead ends: 2404 [2023-11-29 05:02:19,422 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2023-11-29 05:02:19,426 INFO L413 NwaCegarLoop]: 4057 mSDtfsCounter, 4350 mSDsluCounter, 12142 mSDsCounter, 0 mSdLazyCounter, 623 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4359 SdHoareTripleChecker+Valid, 16199 SdHoareTripleChecker+Invalid, 691 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 623 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:19,427 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4359 Valid, 16199 Invalid, 691 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [68 Valid, 623 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:02:19,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2404 states. [2023-11-29 05:02:19,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2404 to 2345. [2023-11-29 05:02:19,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2345 states, 2303 states have (on average 1.84020842379505) internal successors, (4238), 2306 states have internal predecessors, (4238), 27 states have call successors, (27), 12 states have call predecessors, (27), 13 states have return successors, (30), 27 states have call predecessors, (30), 27 states have call successors, (30) [2023-11-29 05:02:19,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2345 states to 2345 states and 4295 transitions. [2023-11-29 05:02:19,572 INFO L78 Accepts]: Start accepts. Automaton has 2345 states and 4295 transitions. Word has length 61 [2023-11-29 05:02:19,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:19,572 INFO L495 AbstractCegarLoop]: Abstraction has 2345 states and 4295 transitions. [2023-11-29 05:02:19,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:19,573 INFO L276 IsEmpty]: Start isEmpty. Operand 2345 states and 4295 transitions. [2023-11-29 05:02:19,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:02:19,577 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:19,577 INFO L195 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, 1, 1, 1] [2023-11-29 05:02:19,577 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-29 05:02:19,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:19,578 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:19,578 INFO L85 PathProgramCache]: Analyzing trace with hash 1424404092, now seen corresponding path program 1 times [2023-11-29 05:02:19,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:19,579 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1288174217] [2023-11-29 05:02:19,579 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:19,579 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:19,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:19,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:19,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:19,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:19,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:19,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:19,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:19,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:19,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:19,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:19,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:19,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:02:19,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:19,771 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1288174217] [2023-11-29 05:02:19,771 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1288174217] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:19,771 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:02:19,771 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:02:19,772 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824859836] [2023-11-29 05:02:19,772 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:19,774 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:02:19,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:19,775 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:02:19,775 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:19,775 INFO L87 Difference]: Start difference. First operand 2345 states and 4295 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:21,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:21,063 INFO L93 Difference]: Finished difference Result 2757 states and 4924 transitions. [2023-11-29 05:02:21,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:02:21,064 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-11-29 05:02:21,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:21,083 INFO L225 Difference]: With dead ends: 2757 [2023-11-29 05:02:21,083 INFO L226 Difference]: Without dead ends: 2541 [2023-11-29 05:02:21,085 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:02:21,086 INFO L413 NwaCegarLoop]: 4121 mSDtfsCounter, 4342 mSDsluCounter, 16314 mSDsCounter, 0 mSdLazyCounter, 1007 mSolverCounterSat, 41 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4351 SdHoareTripleChecker+Valid, 20435 SdHoareTripleChecker+Invalid, 1048 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 41 IncrementalHoareTripleChecker+Valid, 1007 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:21,087 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4351 Valid, 20435 Invalid, 1048 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [41 Valid, 1007 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2023-11-29 05:02:21,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2541 states. [2023-11-29 05:02:21,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2541 to 2446. [2023-11-29 05:02:21,181 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2446 states, 2386 states have (on average 1.8281642917015926) internal successors, (4362), 2390 states have internal predecessors, (4362), 38 states have call successors, (38), 18 states have call predecessors, (38), 20 states have return successors, (43), 39 states have call predecessors, (43), 38 states have call successors, (43) [2023-11-29 05:02:21,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2446 states to 2446 states and 4443 transitions. [2023-11-29 05:02:21,201 INFO L78 Accepts]: Start accepts. Automaton has 2446 states and 4443 transitions. Word has length 61 [2023-11-29 05:02:21,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:21,201 INFO L495 AbstractCegarLoop]: Abstraction has 2446 states and 4443 transitions. [2023-11-29 05:02:21,202 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:21,202 INFO L276 IsEmpty]: Start isEmpty. Operand 2446 states and 4443 transitions. [2023-11-29 05:02:21,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:02:21,205 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:21,206 INFO L195 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, 1, 1, 1] [2023-11-29 05:02:21,206 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-11-29 05:02:21,206 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:21,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:21,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1408885374, now seen corresponding path program 1 times [2023-11-29 05:02:21,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:21,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [768433081] [2023-11-29 05:02:21,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:21,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:21,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:21,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:21,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:21,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:21,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:21,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:21,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:21,387 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:21,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:21,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:21,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:21,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:02:21,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:21,398 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [768433081] [2023-11-29 05:02:21,398 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [768433081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:21,398 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:02:21,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:02:21,399 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605668169] [2023-11-29 05:02:21,399 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:21,399 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:02:21,400 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:21,401 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:02:21,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:21,401 INFO L87 Difference]: Start difference. First operand 2446 states and 4443 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:22,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:22,487 INFO L93 Difference]: Finished difference Result 3115 states and 5460 transitions. [2023-11-29 05:02:22,487 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:02:22,488 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-11-29 05:02:22,488 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:22,507 INFO L225 Difference]: With dead ends: 3115 [2023-11-29 05:02:22,507 INFO L226 Difference]: Without dead ends: 2798 [2023-11-29 05:02:22,510 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:02:22,511 INFO L413 NwaCegarLoop]: 4062 mSDtfsCounter, 4378 mSDsluCounter, 16167 mSDsCounter, 0 mSdLazyCounter, 828 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4387 SdHoareTripleChecker+Valid, 20229 SdHoareTripleChecker+Invalid, 887 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 828 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:22,512 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4387 Valid, 20229 Invalid, 887 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [59 Valid, 828 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-11-29 05:02:22,519 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2023-11-29 05:02:22,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2649. [2023-11-29 05:02:22,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2649 states, 2553 states have (on average 1.8061104582843712) internal successors, (4611), 2559 states have internal predecessors, (4611), 60 states have call successors, (60), 30 states have call predecessors, (60), 34 states have return successors, (73), 63 states have call predecessors, (73), 60 states have call successors, (73) [2023-11-29 05:02:22,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2649 states to 2649 states and 4744 transitions. [2023-11-29 05:02:22,642 INFO L78 Accepts]: Start accepts. Automaton has 2649 states and 4744 transitions. Word has length 61 [2023-11-29 05:02:22,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:22,643 INFO L495 AbstractCegarLoop]: Abstraction has 2649 states and 4744 transitions. [2023-11-29 05:02:22,643 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:22,643 INFO L276 IsEmpty]: Start isEmpty. Operand 2649 states and 4744 transitions. [2023-11-29 05:02:22,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:02:22,646 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:22,646 INFO L195 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, 1, 1, 1] [2023-11-29 05:02:22,646 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-11-29 05:02:22,647 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:22,647 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:22,647 INFO L85 PathProgramCache]: Analyzing trace with hash -946919876, now seen corresponding path program 1 times [2023-11-29 05:02:22,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:22,648 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793719259] [2023-11-29 05:02:22,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:22,648 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:22,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:22,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:22,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:22,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:22,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:22,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:22,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:22,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:22,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:22,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:22,808 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:02:22,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:22,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793719259] [2023-11-29 05:02:22,808 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793719259] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:22,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:02:22,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:02:22,809 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [173149476] [2023-11-29 05:02:22,809 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:22,810 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:02:22,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:22,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:02:22,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:22,811 INFO L87 Difference]: Start difference. First operand 2649 states and 4744 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:23,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:23,880 INFO L93 Difference]: Finished difference Result 3887 states and 6619 transitions. [2023-11-29 05:02:23,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:02:23,881 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-11-29 05:02:23,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:23,903 INFO L225 Difference]: With dead ends: 3887 [2023-11-29 05:02:23,904 INFO L226 Difference]: Without dead ends: 3367 [2023-11-29 05:02:23,907 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:02:23,908 INFO L413 NwaCegarLoop]: 4116 mSDtfsCounter, 4350 mSDsluCounter, 16306 mSDsCounter, 0 mSdLazyCounter, 1083 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4358 SdHoareTripleChecker+Valid, 20422 SdHoareTripleChecker+Invalid, 1128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 1083 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:23,908 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4358 Valid, 20422 Invalid, 1128 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [45 Valid, 1083 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2023-11-29 05:02:23,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3367 states. [2023-11-29 05:02:24,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3367 to 3033. [2023-11-29 05:02:24,032 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3033 states, 2869 states have (on average 1.7716974555594285) internal successors, (5083), 2879 states have internal predecessors, (5083), 100 states have call successors, (100), 54 states have call predecessors, (100), 62 states have return successors, (135), 107 states have call predecessors, (135), 100 states have call successors, (135) [2023-11-29 05:02:24,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3033 states to 3033 states and 5318 transitions. [2023-11-29 05:02:24,046 INFO L78 Accepts]: Start accepts. Automaton has 3033 states and 5318 transitions. Word has length 61 [2023-11-29 05:02:24,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:24,047 INFO L495 AbstractCegarLoop]: Abstraction has 3033 states and 5318 transitions. [2023-11-29 05:02:24,047 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:24,047 INFO L276 IsEmpty]: Start isEmpty. Operand 3033 states and 5318 transitions. [2023-11-29 05:02:24,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:02:24,049 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:24,050 INFO L195 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, 1, 1, 1] [2023-11-29 05:02:24,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-11-29 05:02:24,050 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:24,050 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:24,051 INFO L85 PathProgramCache]: Analyzing trace with hash 981352826, now seen corresponding path program 1 times [2023-11-29 05:02:24,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:24,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686308491] [2023-11-29 05:02:24,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:24,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:24,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:24,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:24,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:24,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:24,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:24,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:24,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:24,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:24,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:24,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:02:24,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:24,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686308491] [2023-11-29 05:02:24,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686308491] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:24,181 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:02:24,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:02:24,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1564693346] [2023-11-29 05:02:24,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:24,182 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:02:24,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:24,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:02:24,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:24,183 INFO L87 Difference]: Start difference. First operand 3033 states and 5318 transitions. Second operand has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:25,172 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:25,172 INFO L93 Difference]: Finished difference Result 5185 states and 8559 transitions. [2023-11-29 05:02:25,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-11-29 05:02:25,172 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-11-29 05:02:25,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:25,193 INFO L225 Difference]: With dead ends: 5185 [2023-11-29 05:02:25,193 INFO L226 Difference]: Without dead ends: 4281 [2023-11-29 05:02:25,198 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2023-11-29 05:02:25,199 INFO L413 NwaCegarLoop]: 4117 mSDtfsCounter, 4350 mSDsluCounter, 16309 mSDsCounter, 0 mSdLazyCounter, 952 mSolverCounterSat, 47 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4362 SdHoareTripleChecker+Valid, 20426 SdHoareTripleChecker+Invalid, 999 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 47 IncrementalHoareTripleChecker+Valid, 952 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:25,199 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4362 Valid, 20426 Invalid, 999 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [47 Valid, 952 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:02:25,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4281 states. [2023-11-29 05:02:25,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4281 to 3818. [2023-11-29 05:02:25,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3818 states, 3522 states have (on average 1.7208972174900625) internal successors, (6061), 3540 states have internal predecessors, (6061), 176 states have call successors, (176), 102 states have call predecessors, (176), 118 states have return successors, (273), 191 states have call predecessors, (273), 176 states have call successors, (273) [2023-11-29 05:02:25,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3818 states to 3818 states and 6510 transitions. [2023-11-29 05:02:25,330 INFO L78 Accepts]: Start accepts. Automaton has 3818 states and 6510 transitions. Word has length 61 [2023-11-29 05:02:25,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:25,330 INFO L495 AbstractCegarLoop]: Abstraction has 3818 states and 6510 transitions. [2023-11-29 05:02:25,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 5 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:25,331 INFO L276 IsEmpty]: Start isEmpty. Operand 3818 states and 6510 transitions. [2023-11-29 05:02:25,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2023-11-29 05:02:25,334 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:25,334 INFO L195 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, 1, 1, 1] [2023-11-29 05:02:25,335 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-11-29 05:02:25,335 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:25,335 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:25,335 INFO L85 PathProgramCache]: Analyzing trace with hash 1874839164, now seen corresponding path program 1 times [2023-11-29 05:02:25,335 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:25,335 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223607903] [2023-11-29 05:02:25,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:25,336 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:25,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:25,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:25,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:25,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:25,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:25,397 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:25,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:25,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:25,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:25,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:25,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:25,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:02:25,421 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:25,421 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223607903] [2023-11-29 05:02:25,421 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [223607903] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:25,421 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:02:25,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-11-29 05:02:25,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522849841] [2023-11-29 05:02:25,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:25,422 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-11-29 05:02:25,422 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:25,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-11-29 05:02:25,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:02:25,423 INFO L87 Difference]: Start difference. First operand 3818 states and 6510 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:26,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:26,281 INFO L93 Difference]: Finished difference Result 6913 states and 11211 transitions. [2023-11-29 05:02:26,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-11-29 05:02:26,282 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 61 [2023-11-29 05:02:26,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:26,306 INFO L225 Difference]: With dead ends: 6913 [2023-11-29 05:02:26,306 INFO L226 Difference]: Without dead ends: 5225 [2023-11-29 05:02:26,312 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2023-11-29 05:02:26,313 INFO L413 NwaCegarLoop]: 4142 mSDtfsCounter, 4472 mSDsluCounter, 12167 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4497 SdHoareTripleChecker+Valid, 16309 SdHoareTripleChecker+Invalid, 875 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:26,314 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4497 Valid, 16309 Invalid, 875 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 808 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:02:26,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5225 states. [2023-11-29 05:02:26,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5225 to 4690. [2023-11-29 05:02:26,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4690 states, 4236 states have (on average 1.674929178470255) internal successors, (7095), 4271 states have internal predecessors, (7095), 272 states have call successors, (272), 156 states have call predecessors, (272), 180 states have return successors, (397), 278 states have call predecessors, (397), 272 states have call successors, (397) [2023-11-29 05:02:26,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4690 states to 4690 states and 7764 transitions. [2023-11-29 05:02:26,470 INFO L78 Accepts]: Start accepts. Automaton has 4690 states and 7764 transitions. Word has length 61 [2023-11-29 05:02:26,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:26,470 INFO L495 AbstractCegarLoop]: Abstraction has 4690 states and 7764 transitions. [2023-11-29 05:02:26,471 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2023-11-29 05:02:26,472 INFO L276 IsEmpty]: Start isEmpty. Operand 4690 states and 7764 transitions. [2023-11-29 05:02:26,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 05:02:26,481 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:26,481 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:02:26,481 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-29 05:02:26,481 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:26,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:26,482 INFO L85 PathProgramCache]: Analyzing trace with hash -2042674346, now seen corresponding path program 1 times [2023-11-29 05:02:26,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:26,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [123282627] [2023-11-29 05:02:26,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:26,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:26,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:26,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:26,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:26,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:26,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:26,551 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:26,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:26,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:26,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:26,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:26,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:02:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:26,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:26,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:26,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 05:02:26,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:26,613 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-29 05:02:26,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:26,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [123282627] [2023-11-29 05:02:26,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [123282627] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:02:26,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1584492644] [2023-11-29 05:02:26,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:26,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:26,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:26,619 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:02:26,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-11-29 05:02:26,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:26,737 INFO L262 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:02:26,743 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:26,802 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2023-11-29 05:02:26,802 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:02:26,802 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1584492644] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:26,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:02:26,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-11-29 05:02:26,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32445056] [2023-11-29 05:02:26,803 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:26,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:02:26,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:26,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:02:26,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:26,806 INFO L87 Difference]: Start difference. First operand 4690 states and 7764 transitions. Second operand has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:02:27,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:27,138 INFO L93 Difference]: Finished difference Result 9693 states and 15244 transitions. [2023-11-29 05:02:27,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:02:27,138 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 99 [2023-11-29 05:02:27,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:27,177 INFO L225 Difference]: With dead ends: 9693 [2023-11-29 05:02:27,177 INFO L226 Difference]: Without dead ends: 7133 [2023-11-29 05:02:27,188 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:27,189 INFO L413 NwaCegarLoop]: 4114 mSDtfsCounter, 4092 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4092 SdHoareTripleChecker+Valid, 4254 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:27,189 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4092 Valid, 4254 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:02:27,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7133 states. [2023-11-29 05:02:27,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7133 to 7105. [2023-11-29 05:02:27,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7105 states, 6237 states have (on average 1.6091069424402757) internal successors, (10036), 6305 states have internal predecessors, (10036), 510 states have call successors, (510), 308 states have call predecessors, (510), 356 states have return successors, (745), 507 states have call predecessors, (745), 510 states have call successors, (745) [2023-11-29 05:02:27,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7105 states to 7105 states and 11291 transitions. [2023-11-29 05:02:27,549 INFO L78 Accepts]: Start accepts. Automaton has 7105 states and 11291 transitions. Word has length 99 [2023-11-29 05:02:27,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:27,549 INFO L495 AbstractCegarLoop]: Abstraction has 7105 states and 11291 transitions. [2023-11-29 05:02:27,550 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 23.666666666666668) internal successors, (71), 2 states have internal predecessors, (71), 2 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2023-11-29 05:02:27,550 INFO L276 IsEmpty]: Start isEmpty. Operand 7105 states and 11291 transitions. [2023-11-29 05:02:27,562 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2023-11-29 05:02:27,562 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:27,563 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:02:27,573 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-11-29 05:02:27,763 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:27,763 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:27,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:27,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1877378954, now seen corresponding path program 1 times [2023-11-29 05:02:27,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:27,764 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132902975] [2023-11-29 05:02:27,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:27,764 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:27,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:27,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:27,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:27,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:27,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:27,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:27,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:27,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:27,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:27,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:27,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:02:27,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:27,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2023-11-29 05:02:27,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:27,896 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-11-29 05:02:27,897 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:27,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132902975] [2023-11-29 05:02:27,897 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [132902975] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:02:27,897 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82382081] [2023-11-29 05:02:27,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:27,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:27,898 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:27,898 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:02:27,902 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-29 05:02:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:28,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 390 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:02:28,018 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:28,041 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-29 05:02:28,042 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:02:28,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [82382081] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:28,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:02:28,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:02:28,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1827228019] [2023-11-29 05:02:28,043 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:28,043 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:02:28,044 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:28,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:02:28,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:28,045 INFO L87 Difference]: Start difference. First operand 7105 states and 11291 transitions. Second operand has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:02:28,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:28,453 INFO L93 Difference]: Finished difference Result 16767 states and 25811 transitions. [2023-11-29 05:02:28,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:02:28,454 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 99 [2023-11-29 05:02:28,455 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:28,485 INFO L225 Difference]: With dead ends: 16767 [2023-11-29 05:02:28,485 INFO L226 Difference]: Without dead ends: 11793 [2023-11-29 05:02:28,497 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 119 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:28,498 INFO L413 NwaCegarLoop]: 4254 mSDtfsCounter, 145 mSDsluCounter, 4113 mSDsCounter, 0 mSdLazyCounter, 49 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 8367 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 49 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:28,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 8367 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 49 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:02:28,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11793 states. [2023-11-29 05:02:28,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11793 to 11793. [2023-11-29 05:02:28,872 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11793 states, 10112 states have (on average 1.5505340189873418) internal successors, (15679), 10229 states have internal predecessors, (15679), 975 states have call successors, (975), 608 states have call predecessors, (975), 704 states have return successors, (1596), 987 states have call predecessors, (1596), 975 states have call successors, (1596) [2023-11-29 05:02:28,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11793 states to 11793 states and 18250 transitions. [2023-11-29 05:02:28,902 INFO L78 Accepts]: Start accepts. Automaton has 11793 states and 18250 transitions. Word has length 99 [2023-11-29 05:02:28,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:28,903 INFO L495 AbstractCegarLoop]: Abstraction has 11793 states and 18250 transitions. [2023-11-29 05:02:28,903 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 22.333333333333332) internal successors, (67), 3 states have internal predecessors, (67), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:02:28,903 INFO L276 IsEmpty]: Start isEmpty. Operand 11793 states and 18250 transitions. [2023-11-29 05:02:28,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2023-11-29 05:02:28,929 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:28,929 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:02:28,934 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-29 05:02:29,129 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:29,130 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:29,130 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:29,130 INFO L85 PathProgramCache]: Analyzing trace with hash -1335572908, now seen corresponding path program 1 times [2023-11-29 05:02:29,130 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:29,130 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1260617270] [2023-11-29 05:02:29,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:29,130 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:29,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:29,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:29,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:29,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:29,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:29,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:02:29,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:29,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2023-11-29 05:02:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 114 [2023-11-29 05:02:29,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,272 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-29 05:02:29,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:29,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1260617270] [2023-11-29 05:02:29,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1260617270] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:02:29,273 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2018669805] [2023-11-29 05:02:29,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:29,273 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:29,273 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:29,275 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:02:29,277 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-29 05:02:29,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:29,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 483 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:02:29,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:29,535 INFO L134 CoverageAnalysis]: Checked inductivity of 63 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-29 05:02:29,535 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:02:29,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2018669805] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:29,535 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:02:29,536 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [6] total 7 [2023-11-29 05:02:29,536 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517090971] [2023-11-29 05:02:29,536 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:29,537 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:02:29,537 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:29,537 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:02:29,538 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:29,538 INFO L87 Difference]: Start difference. First operand 11793 states and 18250 transitions. Second operand has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 05:02:30,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:30,657 INFO L93 Difference]: Finished difference Result 30733 states and 46555 transitions. [2023-11-29 05:02:30,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:02:30,658 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 127 [2023-11-29 05:02:30,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:30,719 INFO L225 Difference]: With dead ends: 30733 [2023-11-29 05:02:30,719 INFO L226 Difference]: Without dead ends: 21075 [2023-11-29 05:02:30,755 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 151 GetRequests, 146 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:30,755 INFO L413 NwaCegarLoop]: 4117 mSDtfsCounter, 4053 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4053 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:30,756 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4053 Valid, 4257 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:02:30,777 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21075 states. [2023-11-29 05:02:31,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21075 to 20969. [2023-11-29 05:02:31,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20969 states, 17708 states have (on average 1.5070589564038852) internal successors, (26687), 17939 states have internal predecessors, (26687), 1869 states have call successors, (1869), 1198 states have call predecessors, (1869), 1390 states have return successors, (3038), 1863 states have call predecessors, (3038), 1869 states have call successors, (3038) [2023-11-29 05:02:31,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20969 states to 20969 states and 31594 transitions. [2023-11-29 05:02:31,577 INFO L78 Accepts]: Start accepts. Automaton has 20969 states and 31594 transitions. Word has length 127 [2023-11-29 05:02:31,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:31,577 INFO L495 AbstractCegarLoop]: Abstraction has 20969 states and 31594 transitions. [2023-11-29 05:02:31,577 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.333333333333332) internal successors, (91), 2 states have internal predecessors, (91), 2 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2023-11-29 05:02:31,577 INFO L276 IsEmpty]: Start isEmpty. Operand 20969 states and 31594 transitions. [2023-11-29 05:02:31,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 05:02:31,631 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:31,632 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:02:31,637 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-11-29 05:02:31,832 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:31,832 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:31,833 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:31,833 INFO L85 PathProgramCache]: Analyzing trace with hash 791512030, now seen corresponding path program 1 times [2023-11-29 05:02:31,833 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:31,833 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1522437649] [2023-11-29 05:02:31,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:31,833 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:31,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:31,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:31,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:31,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:31,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:31,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 05:02:31,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 05:02:31,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:31,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 05:02:31,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:31,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,973 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-29 05:02:31,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:31,976 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 05:02:31,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:31,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1522437649] [2023-11-29 05:02:31,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1522437649] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:02:31,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [834839199] [2023-11-29 05:02:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:31,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:31,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:31,977 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:02:31,982 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-29 05:02:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:32,104 INFO L262 TraceCheckSpWp]: Trace formula consists of 524 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:02:32,108 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:32,177 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:02:32,177 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:02:32,178 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [834839199] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:32,178 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:02:32,178 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:02:32,178 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [241489459] [2023-11-29 05:02:32,178 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:32,179 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:02:32,179 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:32,179 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:02:32,180 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:32,180 INFO L87 Difference]: Start difference. First operand 20969 states and 31594 transitions. Second operand has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:02:32,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:32,943 INFO L93 Difference]: Finished difference Result 33443 states and 50451 transitions. [2023-11-29 05:02:32,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:02:32,943 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 143 [2023-11-29 05:02:32,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:32,993 INFO L225 Difference]: With dead ends: 33443 [2023-11-29 05:02:32,994 INFO L226 Difference]: Without dead ends: 18715 [2023-11-29 05:02:33,029 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:33,030 INFO L413 NwaCegarLoop]: 4114 mSDtfsCounter, 4086 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4086 SdHoareTripleChecker+Valid, 4142 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:33,031 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4086 Valid, 4142 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:02:33,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18715 states. [2023-11-29 05:02:33,584 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18715 to 14099. [2023-11-29 05:02:33,596 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14099 states, 12046 states have (on average 1.4857214012950357) internal successors, (17897), 12167 states have internal predecessors, (17897), 1161 states have call successors, (1161), 794 states have call predecessors, (1161), 890 states have return successors, (1648), 1153 states have call predecessors, (1648), 1161 states have call successors, (1648) [2023-11-29 05:02:33,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14099 states to 14099 states and 20706 transitions. [2023-11-29 05:02:33,632 INFO L78 Accepts]: Start accepts. Automaton has 14099 states and 20706 transitions. Word has length 143 [2023-11-29 05:02:33,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:33,632 INFO L495 AbstractCegarLoop]: Abstraction has 14099 states and 20706 transitions. [2023-11-29 05:02:33,633 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 37.0) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (10), 3 states have call predecessors, (10), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:02:33,633 INFO L276 IsEmpty]: Start isEmpty. Operand 14099 states and 20706 transitions. [2023-11-29 05:02:33,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2023-11-29 05:02:33,707 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:33,707 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:02:33,712 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2023-11-29 05:02:33,907 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:33,908 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:33,908 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:33,908 INFO L85 PathProgramCache]: Analyzing trace with hash -2075302660, now seen corresponding path program 1 times [2023-11-29 05:02:33,908 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:33,908 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078640688] [2023-11-29 05:02:33,909 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:33,909 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:33,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:33,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:33,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:33,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:33,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:33,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:34,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:34,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:34,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:34,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:34,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:34,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2023-11-29 05:02:34,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:34,031 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2023-11-29 05:02:34,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:34,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:34,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:34,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 05:02:34,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:34,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:34,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:34,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2023-11-29 05:02:34,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:34,054 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 05:02:34,054 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:34,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078640688] [2023-11-29 05:02:34,054 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078640688] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:02:34,054 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1427385400] [2023-11-29 05:02:34,054 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:34,054 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:34,055 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:34,056 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:02:34,059 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-29 05:02:34,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:34,186 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:02:34,190 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:34,236 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2023-11-29 05:02:34,236 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:02:34,236 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1427385400] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:34,237 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:02:34,237 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:02:34,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [147296002] [2023-11-29 05:02:34,237 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:34,238 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:02:34,238 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:34,239 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:02:34,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:34,239 INFO L87 Difference]: Start difference. First operand 14099 states and 20706 transitions. Second operand has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 05:02:34,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:34,687 INFO L93 Difference]: Finished difference Result 23244 states and 33469 transitions. [2023-11-29 05:02:34,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:02:34,688 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 143 [2023-11-29 05:02:34,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:34,722 INFO L225 Difference]: With dead ends: 23244 [2023-11-29 05:02:34,722 INFO L226 Difference]: Without dead ends: 14923 [2023-11-29 05:02:34,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:34,743 INFO L413 NwaCegarLoop]: 4143 mSDtfsCounter, 4079 mSDsluCounter, 145 mSDsCounter, 0 mSdLazyCounter, 37 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4079 SdHoareTripleChecker+Valid, 4288 SdHoareTripleChecker+Invalid, 40 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 37 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:34,744 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4079 Valid, 4288 Invalid, 40 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 37 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:02:34,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14923 states. [2023-11-29 05:02:35,560 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14923 to 14857. [2023-11-29 05:02:35,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14857 states, 12716 states have (on average 1.4599716892104435) internal successors, (18565), 12837 states have internal predecessors, (18565), 1183 states have call successors, (1183), 860 states have call predecessors, (1183), 956 states have return successors, (1736), 1175 states have call predecessors, (1736), 1183 states have call successors, (1736) [2023-11-29 05:02:35,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14857 states to 14857 states and 21484 transitions. [2023-11-29 05:02:35,615 INFO L78 Accepts]: Start accepts. Automaton has 14857 states and 21484 transitions. Word has length 143 [2023-11-29 05:02:35,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:35,615 INFO L495 AbstractCegarLoop]: Abstraction has 14857 states and 21484 transitions. [2023-11-29 05:02:35,615 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 30.666666666666668) internal successors, (92), 3 states have internal predecessors, (92), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 05:02:35,615 INFO L276 IsEmpty]: Start isEmpty. Operand 14857 states and 21484 transitions. [2023-11-29 05:02:35,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 05:02:35,643 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:35,644 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:02:35,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-11-29 05:02:35,844 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:35,844 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:35,845 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:35,845 INFO L85 PathProgramCache]: Analyzing trace with hash -1556193784, now seen corresponding path program 1 times [2023-11-29 05:02:35,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:35,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717712229] [2023-11-29 05:02:35,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:35,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:35,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:35,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:35,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:35,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:35,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:35,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:35,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:35,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:35,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:35,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:02:35,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:35,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:35,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 05:02:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:36,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 05:02:36,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:36,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:36,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:36,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-29 05:02:36,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:36,018 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 05:02:36,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:36,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717712229] [2023-11-29 05:02:36,018 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717712229] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:02:36,018 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [979266553] [2023-11-29 05:02:36,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:36,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:36,019 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:36,020 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:02:36,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-29 05:02:36,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:36,154 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:02:36,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:36,189 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 71 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2023-11-29 05:02:36,189 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:02:36,189 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [979266553] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:36,189 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:02:36,190 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:02:36,190 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47969354] [2023-11-29 05:02:36,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:36,191 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:02:36,191 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:36,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:02:36,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:36,192 INFO L87 Difference]: Start difference. First operand 14857 states and 21484 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:02:37,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:37,062 INFO L93 Difference]: Finished difference Result 39509 states and 55950 transitions. [2023-11-29 05:02:37,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:02:37,063 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 144 [2023-11-29 05:02:37,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:37,121 INFO L225 Difference]: With dead ends: 39509 [2023-11-29 05:02:37,121 INFO L226 Difference]: Without dead ends: 26789 [2023-11-29 05:02:37,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:37,138 INFO L413 NwaCegarLoop]: 4253 mSDtfsCounter, 135 mSDsluCounter, 4112 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 8365 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:37,138 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 8365 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:02:37,159 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26789 states. [2023-11-29 05:02:38,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26789 to 26743. [2023-11-29 05:02:38,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26743 states, 22644 states have (on average 1.4140169581346052) internal successors, (32019), 22885 states have internal predecessors, (32019), 2245 states have call successors, (2245), 1660 states have call predecessors, (2245), 1852 states have return successors, (3798), 2229 states have call predecessors, (3798), 2245 states have call successors, (3798) [2023-11-29 05:02:38,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26743 states to 26743 states and 38062 transitions. [2023-11-29 05:02:38,180 INFO L78 Accepts]: Start accepts. Automaton has 26743 states and 38062 transitions. Word has length 144 [2023-11-29 05:02:38,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:38,181 INFO L495 AbstractCegarLoop]: Abstraction has 26743 states and 38062 transitions. [2023-11-29 05:02:38,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:02:38,181 INFO L276 IsEmpty]: Start isEmpty. Operand 26743 states and 38062 transitions. [2023-11-29 05:02:38,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 05:02:38,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:38,210 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:02:38,216 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2023-11-29 05:02:38,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:38,411 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:38,411 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:38,411 INFO L85 PathProgramCache]: Analyzing trace with hash 125794537, now seen corresponding path program 1 times [2023-11-29 05:02:38,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:38,412 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457826226] [2023-11-29 05:02:38,412 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:38,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:38,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,475 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:38,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:38,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:38,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:38,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,530 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:38,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:02:38,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:38,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,543 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 05:02:38,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 05:02:38,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-29 05:02:38,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,561 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2023-11-29 05:02:38,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:38,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457826226] [2023-11-29 05:02:38,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457826226] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:02:38,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1487333936] [2023-11-29 05:02:38,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:38,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:38,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:38,563 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:02:38,565 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-11-29 05:02:38,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:38,686 INFO L262 TraceCheckSpWp]: Trace formula consists of 516 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:02:38,689 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:38,774 INFO L134 CoverageAnalysis]: Checked inductivity of 88 backedges. 73 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-11-29 05:02:38,774 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:02:38,774 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1487333936] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:38,774 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:02:38,774 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:02:38,774 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1298638246] [2023-11-29 05:02:38,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:38,775 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:02:38,775 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:38,776 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:02:38,776 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:38,776 INFO L87 Difference]: Start difference. First operand 26743 states and 38062 transitions. Second operand has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:02:39,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:39,682 INFO L93 Difference]: Finished difference Result 52491 states and 75074 transitions. [2023-11-29 05:02:39,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:02:39,683 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) Word has length 144 [2023-11-29 05:02:39,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:39,740 INFO L225 Difference]: With dead ends: 52491 [2023-11-29 05:02:39,740 INFO L226 Difference]: Without dead ends: 27885 [2023-11-29 05:02:39,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:39,771 INFO L413 NwaCegarLoop]: 4108 mSDtfsCounter, 4065 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4065 SdHoareTripleChecker+Valid, 4135 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:39,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4065 Valid, 4135 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:02:39,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27885 states. [2023-11-29 05:02:41,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27885 to 27841. [2023-11-29 05:02:41,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27841 states, 23682 states have (on average 1.3691833460011824) internal successors, (32425), 23923 states have internal predecessors, (32425), 2245 states have call successors, (2245), 1720 states have call predecessors, (2245), 1912 states have return successors, (3754), 2229 states have call predecessors, (3754), 2245 states have call successors, (3754) [2023-11-29 05:02:41,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27841 states to 27841 states and 38424 transitions. [2023-11-29 05:02:41,296 INFO L78 Accepts]: Start accepts. Automaton has 27841 states and 38424 transitions. Word has length 144 [2023-11-29 05:02:41,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:41,297 INFO L495 AbstractCegarLoop]: Abstraction has 27841 states and 38424 transitions. [2023-11-29 05:02:41,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 38.0) internal successors, (114), 3 states have internal predecessors, (114), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (10), 3 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:02:41,297 INFO L276 IsEmpty]: Start isEmpty. Operand 27841 states and 38424 transitions. [2023-11-29 05:02:41,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 145 [2023-11-29 05:02:41,331 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:41,331 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:02:41,336 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2023-11-29 05:02:41,531 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2023-11-29 05:02:41,532 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:41,532 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:41,532 INFO L85 PathProgramCache]: Analyzing trace with hash -782339540, now seen corresponding path program 1 times [2023-11-29 05:02:41,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:41,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [993937604] [2023-11-29 05:02:41,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:41,533 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:41,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:41,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:41,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:41,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:41,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2023-11-29 05:02:41,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:41,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,655 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2023-11-29 05:02:41,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2023-11-29 05:02:41,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2023-11-29 05:02:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,671 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 62 trivial. 0 not checked. [2023-11-29 05:02:41,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:41,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [993937604] [2023-11-29 05:02:41,671 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [993937604] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:02:41,671 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1080862362] [2023-11-29 05:02:41,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:41,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:41,672 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:41,673 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:02:41,675 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-29 05:02:41,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:41,803 INFO L262 TraceCheckSpWp]: Trace formula consists of 510 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:02:41,806 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:41,826 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2023-11-29 05:02:41,826 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:02:41,826 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1080862362] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:41,826 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:02:41,826 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:02:41,826 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1502649504] [2023-11-29 05:02:41,826 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:41,827 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:02:41,827 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:41,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:02:41,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:41,828 INFO L87 Difference]: Start difference. First operand 27841 states and 38424 transitions. Second operand has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:02:43,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:43,587 INFO L93 Difference]: Finished difference Result 75539 states and 103548 transitions. [2023-11-29 05:02:43,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:02:43,587 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) Word has length 144 [2023-11-29 05:02:43,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:43,701 INFO L225 Difference]: With dead ends: 75539 [2023-11-29 05:02:43,701 INFO L226 Difference]: Without dead ends: 49843 [2023-11-29 05:02:43,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 170 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:43,738 INFO L413 NwaCegarLoop]: 4247 mSDtfsCounter, 139 mSDsluCounter, 4107 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 8354 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:43,739 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 8354 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:02:43,776 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49843 states. [2023-11-29 05:02:45,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49843 to 49841. [2023-11-29 05:02:45,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49841 states, 41974 states have (on average 1.333468337542288) internal successors, (55971), 42455 states have internal predecessors, (55971), 4265 states have call successors, (4265), 3216 states have call predecessors, (4265), 3600 states have return successors, (8200), 4233 states have call predecessors, (8200), 4265 states have call successors, (8200) [2023-11-29 05:02:46,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49841 states to 49841 states and 68436 transitions. [2023-11-29 05:02:46,049 INFO L78 Accepts]: Start accepts. Automaton has 49841 states and 68436 transitions. Word has length 144 [2023-11-29 05:02:46,050 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:46,050 INFO L495 AbstractCegarLoop]: Abstraction has 49841 states and 68436 transitions. [2023-11-29 05:02:46,050 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 34.333333333333336) internal successors, (103), 3 states have internal predecessors, (103), 3 states have call successors, (11), 3 states have call predecessors, (11), 2 states have return successors, (11), 2 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:02:46,050 INFO L276 IsEmpty]: Start isEmpty. Operand 49841 states and 68436 transitions. [2023-11-29 05:02:46,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 05:02:46,118 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:46,119 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:02:46,124 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-29 05:02:46,319 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:46,319 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:46,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:46,320 INFO L85 PathProgramCache]: Analyzing trace with hash -873894743, now seen corresponding path program 1 times [2023-11-29 05:02:46,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:46,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041779821] [2023-11-29 05:02:46,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:46,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:46,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:46,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:46,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:46,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:46,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:46,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 05:02:46,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,452 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 05:02:46,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:46,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,464 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 05:02:46,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:46,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 05:02:46,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,479 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2023-11-29 05:02:46,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:46,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041779821] [2023-11-29 05:02:46,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041779821] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:02:46,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468557979] [2023-11-29 05:02:46,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:46,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:46,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:46,481 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:02:46,486 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-11-29 05:02:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:46,615 INFO L262 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:02:46,618 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:46,661 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 55 proven. 0 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2023-11-29 05:02:46,661 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:02:46,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468557979] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:46,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:02:46,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:02:46,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696289192] [2023-11-29 05:02:46,662 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:46,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:02:46,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:46,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:02:46,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:46,664 INFO L87 Difference]: Start difference. First operand 49841 states and 68436 transitions. Second operand has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 05:02:48,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:48,770 INFO L93 Difference]: Finished difference Result 87149 states and 119166 transitions. [2023-11-29 05:02:48,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:02:48,771 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 145 [2023-11-29 05:02:48,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:48,892 INFO L225 Difference]: With dead ends: 87149 [2023-11-29 05:02:48,892 INFO L226 Difference]: Without dead ends: 51011 [2023-11-29 05:02:48,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:48,942 INFO L413 NwaCegarLoop]: 4134 mSDtfsCounter, 4085 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 4275 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:48,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4085 Valid, 4275 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:02:48,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51011 states. [2023-11-29 05:02:50,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51011 to 49721. [2023-11-29 05:02:50,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49721 states, 41854 states have (on average 1.324389544607445) internal successors, (55431), 42335 states have internal predecessors, (55431), 4265 states have call successors, (4265), 3216 states have call predecessors, (4265), 3600 states have return successors, (8200), 4233 states have call predecessors, (8200), 4265 states have call successors, (8200) [2023-11-29 05:02:51,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49721 states to 49721 states and 67896 transitions. [2023-11-29 05:02:51,091 INFO L78 Accepts]: Start accepts. Automaton has 49721 states and 67896 transitions. Word has length 145 [2023-11-29 05:02:51,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:51,091 INFO L495 AbstractCegarLoop]: Abstraction has 49721 states and 67896 transitions. [2023-11-29 05:02:51,091 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 31.666666666666668) internal successors, (95), 3 states have internal predecessors, (95), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 05:02:51,091 INFO L276 IsEmpty]: Start isEmpty. Operand 49721 states and 67896 transitions. [2023-11-29 05:02:51,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 05:02:51,247 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:51,247 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:02:51,253 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2023-11-29 05:02:51,448 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2023-11-29 05:02:51,448 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:51,448 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:51,448 INFO L85 PathProgramCache]: Analyzing trace with hash 133090187, now seen corresponding path program 1 times [2023-11-29 05:02:51,448 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:51,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004252780] [2023-11-29 05:02:51,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:51,449 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:51,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:51,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:51,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:51,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:51,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:51,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 05:02:51,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 05:02:51,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:51,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 05:02:51,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:51,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,604 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 05:02:51,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,606 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-29 05:02:51,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:51,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004252780] [2023-11-29 05:02:51,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1004252780] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:02:51,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1955364458] [2023-11-29 05:02:51,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:51,607 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:02:51,608 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:02:51,609 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:02:51,614 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-11-29 05:02:51,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:51,720 INFO L262 TraceCheckSpWp]: Trace formula consists of 515 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:02:51,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:02:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 62 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2023-11-29 05:02:51,770 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:02:51,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1955364458] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:51,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:02:51,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:02:51,771 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405553070] [2023-11-29 05:02:51,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:51,771 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:02:51,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:51,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:02:51,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:51,773 INFO L87 Difference]: Start difference. First operand 49721 states and 67896 transitions. Second operand has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 05:02:53,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:53,949 INFO L93 Difference]: Finished difference Result 87253 states and 118366 transitions. [2023-11-29 05:02:53,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:02:53,949 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 145 [2023-11-29 05:02:53,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:54,068 INFO L225 Difference]: With dead ends: 87253 [2023-11-29 05:02:54,068 INFO L226 Difference]: Without dead ends: 50443 [2023-11-29 05:02:54,116 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 166 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:02:54,116 INFO L413 NwaCegarLoop]: 4123 mSDtfsCounter, 4085 mSDsluCounter, 139 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4085 SdHoareTripleChecker+Valid, 4262 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:54,116 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4085 Valid, 4262 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:02:54,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50443 states. [2023-11-29 05:02:56,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50443 to 49721. [2023-11-29 05:02:56,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49721 states, 41854 states have (on average 1.3172217709179528) internal successors, (55131), 42335 states have internal predecessors, (55131), 4265 states have call successors, (4265), 3216 states have call predecessors, (4265), 3600 states have return successors, (8200), 4233 states have call predecessors, (8200), 4265 states have call successors, (8200) [2023-11-29 05:02:56,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49721 states to 49721 states and 67596 transitions. [2023-11-29 05:02:56,483 INFO L78 Accepts]: Start accepts. Automaton has 49721 states and 67596 transitions. Word has length 145 [2023-11-29 05:02:56,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:02:56,484 INFO L495 AbstractCegarLoop]: Abstraction has 49721 states and 67596 transitions. [2023-11-29 05:02:56,484 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 32.666666666666664) internal successors, (98), 3 states have internal predecessors, (98), 3 states have call successors, (9), 3 states have call predecessors, (9), 3 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2023-11-29 05:02:56,484 INFO L276 IsEmpty]: Start isEmpty. Operand 49721 states and 67596 transitions. [2023-11-29 05:02:56,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 05:02:56,529 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:02:56,529 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:02:56,535 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2023-11-29 05:02:56,730 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-11-29 05:02:56,730 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:02:56,730 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:02:56,730 INFO L85 PathProgramCache]: Analyzing trace with hash -40298357, now seen corresponding path program 1 times [2023-11-29 05:02:56,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:02:56,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2081126308] [2023-11-29 05:02:56,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:02:56,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:02:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:02:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:02:56,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:02:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:02:56,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:02:56,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 05:02:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 05:02:56,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:56,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2023-11-29 05:02:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:02:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 05:02:56,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:02:56,811 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2023-11-29 05:02:56,811 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:02:56,811 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2081126308] [2023-11-29 05:02:56,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2081126308] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:02:56,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:02:56,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:02:56,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992620734] [2023-11-29 05:02:56,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:02:56,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:02:56,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:02:56,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:02:56,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:02:56,814 INFO L87 Difference]: Start difference. First operand 49721 states and 67596 transitions. Second operand has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 05:02:59,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:02:59,010 INFO L93 Difference]: Finished difference Result 95091 states and 127259 transitions. [2023-11-29 05:02:59,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:02:59,011 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 145 [2023-11-29 05:02:59,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:02:59,112 INFO L225 Difference]: With dead ends: 95091 [2023-11-29 05:02:59,112 INFO L226 Difference]: Without dead ends: 47513 [2023-11-29 05:02:59,168 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:02:59,169 INFO L413 NwaCegarLoop]: 4059 mSDtfsCounter, 273 mSDsluCounter, 11974 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 16033 SdHoareTripleChecker+Invalid, 280 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:02:59,170 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 16033 Invalid, 280 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:02:59,205 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47513 states. [2023-11-29 05:03:01,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47513 to 44823. [2023-11-29 05:03:01,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44823 states, 38040 states have (on average 1.3237381703470033) internal successors, (50355), 38933 states have internal predecessors, (50355), 3253 states have call successors, (3253), 2472 states have call predecessors, (3253), 3528 states have return successors, (6773), 3449 states have call predecessors, (6773), 3253 states have call successors, (6773) [2023-11-29 05:03:01,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44823 states to 44823 states and 60381 transitions. [2023-11-29 05:03:01,177 INFO L78 Accepts]: Start accepts. Automaton has 44823 states and 60381 transitions. Word has length 145 [2023-11-29 05:03:01,177 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:01,177 INFO L495 AbstractCegarLoop]: Abstraction has 44823 states and 60381 transitions. [2023-11-29 05:03:01,178 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 13.6) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 05:03:01,178 INFO L276 IsEmpty]: Start isEmpty. Operand 44823 states and 60381 transitions. [2023-11-29 05:03:01,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2023-11-29 05:03:01,210 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:01,211 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:03:01,211 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2023-11-29 05:03:01,211 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:01,211 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:01,211 INFO L85 PathProgramCache]: Analyzing trace with hash -2081503833, now seen corresponding path program 1 times [2023-11-29 05:03:01,211 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:01,211 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106637136] [2023-11-29 05:03:01,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:01,212 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:01,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:03:01,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:03:01,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:03:01,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:03:01,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:03:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-11-29 05:03:01,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2023-11-29 05:03:01,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2023-11-29 05:03:01,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:01,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2023-11-29 05:03:01,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:01,299 INFO L134 CoverageAnalysis]: Checked inductivity of 91 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2023-11-29 05:03:01,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:01,300 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106637136] [2023-11-29 05:03:01,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106637136] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:01,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:03:01,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-11-29 05:03:01,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592830311] [2023-11-29 05:03:01,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:01,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:03:01,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:01,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:03:01,301 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-11-29 05:03:01,301 INFO L87 Difference]: Start difference. First operand 44823 states and 60381 transitions. Second operand has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 05:03:02,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:02,816 INFO L93 Difference]: Finished difference Result 79543 states and 106038 transitions. [2023-11-29 05:03:02,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-29 05:03:02,816 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 145 [2023-11-29 05:03:02,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:02,889 INFO L225 Difference]: With dead ends: 79543 [2023-11-29 05:03:02,889 INFO L226 Difference]: Without dead ends: 36855 [2023-11-29 05:03:02,932 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2023-11-29 05:03:02,933 INFO L413 NwaCegarLoop]: 4058 mSDtfsCounter, 273 mSDsluCounter, 11973 mSDsCounter, 0 mSdLazyCounter, 244 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 289 SdHoareTripleChecker+Valid, 16031 SdHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 244 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:02,933 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [289 Valid, 16031 Invalid, 279 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 244 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-11-29 05:03:02,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36855 states. [2023-11-29 05:03:04,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36855 to 34305. [2023-11-29 05:03:04,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34305 states, 29268 states have (on average 1.3431392647259806) internal successors, (39311), 29905 states have internal predecessors, (39311), 2427 states have call successors, (2427), 1856 states have call predecessors, (2427), 2608 states have return successors, (4799), 2559 states have call predecessors, (4799), 2427 states have call successors, (4799) [2023-11-29 05:03:04,580 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34305 states to 34305 states and 46537 transitions. [2023-11-29 05:03:04,583 INFO L78 Accepts]: Start accepts. Automaton has 34305 states and 46537 transitions. Word has length 145 [2023-11-29 05:03:04,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:04,583 INFO L495 AbstractCegarLoop]: Abstraction has 34305 states and 46537 transitions. [2023-11-29 05:03:04,583 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.2) internal successors, (71), 3 states have internal predecessors, (71), 3 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2023-11-29 05:03:04,583 INFO L276 IsEmpty]: Start isEmpty. Operand 34305 states and 46537 transitions. [2023-11-29 05:03:04,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 05:03:04,621 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:04,621 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:03:04,621 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2023-11-29 05:03:04,621 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:04,622 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:04,622 INFO L85 PathProgramCache]: Analyzing trace with hash 213627841, now seen corresponding path program 1 times [2023-11-29 05:03:04,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:04,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [945025980] [2023-11-29 05:03:04,623 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:04,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:04,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:03:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:03:04,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:03:04,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:03:04,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:03:04,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 05:03:04,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:03:04,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 05:03:04,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-29 05:03:04,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 05:03:04,749 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:04,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [945025980] [2023-11-29 05:03:04,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [945025980] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:03:04,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [705160072] [2023-11-29 05:03:04,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:04,750 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:03:04,750 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:03:04,751 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:03:04,753 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2023-11-29 05:03:04,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:04,878 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:03:04,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:03:04,922 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 83 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-11-29 05:03:04,922 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:03:04,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [705160072] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:04,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:03:04,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:03:04,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176419690] [2023-11-29 05:03:04,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:04,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:03:04,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:04,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:03:04,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:03:04,925 INFO L87 Difference]: Start difference. First operand 34305 states and 46537 transitions. Second operand has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:03:06,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:06,269 INFO L93 Difference]: Finished difference Result 56199 states and 77803 transitions. [2023-11-29 05:03:06,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:03:06,269 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 149 [2023-11-29 05:03:06,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:06,342 INFO L225 Difference]: With dead ends: 56199 [2023-11-29 05:03:06,342 INFO L226 Difference]: Without dead ends: 34391 [2023-11-29 05:03:06,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:03:06,380 INFO L413 NwaCegarLoop]: 4198 mSDtfsCounter, 122 mSDsluCounter, 4094 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 8292 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:06,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 8292 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:03:06,408 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34391 states. [2023-11-29 05:03:07,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34391 to 34305. [2023-11-29 05:03:07,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34305 states, 29268 states have (on average 1.319564028973623) internal successors, (38621), 29905 states have internal predecessors, (38621), 2427 states have call successors, (2427), 1856 states have call predecessors, (2427), 2608 states have return successors, (4799), 2559 states have call predecessors, (4799), 2427 states have call successors, (4799) [2023-11-29 05:03:07,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34305 states to 34305 states and 45847 transitions. [2023-11-29 05:03:07,824 INFO L78 Accepts]: Start accepts. Automaton has 34305 states and 45847 transitions. Word has length 149 [2023-11-29 05:03:07,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:07,824 INFO L495 AbstractCegarLoop]: Abstraction has 34305 states and 45847 transitions. [2023-11-29 05:03:07,825 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.0) internal successors, (117), 3 states have internal predecessors, (117), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:03:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand 34305 states and 45847 transitions. [2023-11-29 05:03:07,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 05:03:07,850 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:07,850 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:03:07,855 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2023-11-29 05:03:08,050 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:03:08,051 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:08,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:08,051 INFO L85 PathProgramCache]: Analyzing trace with hash 22552195, now seen corresponding path program 1 times [2023-11-29 05:03:08,051 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:08,051 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355954789] [2023-11-29 05:03:08,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:08,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:03:08,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:03:08,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:03:08,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:03:08,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:03:08,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 05:03:08,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:03:08,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,141 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:08,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 05:03:08,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:08,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-29 05:03:08,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,155 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 05:03:08,155 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:08,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355954789] [2023-11-29 05:03:08,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1355954789] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:03:08,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248071549] [2023-11-29 05:03:08,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:08,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:03:08,156 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:03:08,157 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:03:08,158 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2023-11-29 05:03:08,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:08,270 INFO L262 TraceCheckSpWp]: Trace formula consists of 533 conjuncts, 2 conjunts are in the unsatisfiable core [2023-11-29 05:03:08,272 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:03:08,300 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 67 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 05:03:08,300 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:03:08,300 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248071549] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:08,300 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:03:08,300 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:03:08,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756568636] [2023-11-29 05:03:08,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:08,301 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:03:08,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:08,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:03:08,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:03:08,302 INFO L87 Difference]: Start difference. First operand 34305 states and 45847 transitions. Second operand has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:03:09,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:09,368 INFO L93 Difference]: Finished difference Result 59056 states and 79662 transitions. [2023-11-29 05:03:09,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:03:09,368 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 149 [2023-11-29 05:03:09,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:09,420 INFO L225 Difference]: With dead ends: 59056 [2023-11-29 05:03:09,420 INFO L226 Difference]: Without dead ends: 29190 [2023-11-29 05:03:09,452 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:03:09,453 INFO L413 NwaCegarLoop]: 4110 mSDtfsCounter, 4100 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4100 SdHoareTripleChecker+Valid, 4136 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:09,453 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4100 Valid, 4136 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:03:09,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29190 states. [2023-11-29 05:03:10,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29190 to 28076. [2023-11-29 05:03:10,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28076 states, 24079 states have (on average 1.2930769550230492) internal successors, (31136), 24573 states have internal predecessors, (31136), 1931 states have call successors, (1931), 1480 states have call predecessors, (1931), 2064 states have return successors, (3537), 2030 states have call predecessors, (3537), 1931 states have call successors, (3537) [2023-11-29 05:03:10,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28076 states to 28076 states and 36604 transitions. [2023-11-29 05:03:10,528 INFO L78 Accepts]: Start accepts. Automaton has 28076 states and 36604 transitions. Word has length 149 [2023-11-29 05:03:10,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:10,528 INFO L495 AbstractCegarLoop]: Abstraction has 28076 states and 36604 transitions. [2023-11-29 05:03:10,528 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.333333333333336) internal successors, (106), 3 states have internal predecessors, (106), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:03:10,528 INFO L276 IsEmpty]: Start isEmpty. Operand 28076 states and 36604 transitions. [2023-11-29 05:03:10,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2023-11-29 05:03:10,544 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:10,544 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:03:10,550 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2023-11-29 05:03:10,745 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:03:10,745 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:10,745 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:10,745 INFO L85 PathProgramCache]: Analyzing trace with hash 231065803, now seen corresponding path program 1 times [2023-11-29 05:03:10,745 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:10,745 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735247231] [2023-11-29 05:03:10,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:10,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:10,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,791 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:03:10,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:03:10,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:03:10,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:03:10,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:03:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,839 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 05:03:10,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:03:10,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:10,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2023-11-29 05:03:10,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:10,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2023-11-29 05:03:10,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,860 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-29 05:03:10,860 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:10,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735247231] [2023-11-29 05:03:10,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735247231] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:03:10,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1101764705] [2023-11-29 05:03:10,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:10,861 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:03:10,861 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:03:10,863 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:03:10,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2023-11-29 05:03:10,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:10,962 INFO L262 TraceCheckSpWp]: Trace formula consists of 527 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:03:10,964 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:03:11,004 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 86 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2023-11-29 05:03:11,005 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:03:11,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1101764705] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:11,005 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:03:11,005 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:03:11,005 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256376644] [2023-11-29 05:03:11,005 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:11,006 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:03:11,006 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:11,007 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:03:11,007 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:03:11,007 INFO L87 Difference]: Start difference. First operand 28076 states and 36604 transitions. Second operand has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:03:11,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:11,986 INFO L93 Difference]: Finished difference Result 46492 states and 61510 transitions. [2023-11-29 05:03:11,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:03:11,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) Word has length 149 [2023-11-29 05:03:11,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:12,046 INFO L225 Difference]: With dead ends: 46492 [2023-11-29 05:03:12,046 INFO L226 Difference]: Without dead ends: 28146 [2023-11-29 05:03:12,076 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 175 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:03:12,076 INFO L413 NwaCegarLoop]: 4228 mSDtfsCounter, 117 mSDsluCounter, 4093 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 8321 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:12,077 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 8321 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:03:12,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28146 states. [2023-11-29 05:03:13,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28146 to 28076. [2023-11-29 05:03:13,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28076 states, 24079 states have (on average 1.2652518792308651) internal successors, (30466), 24573 states have internal predecessors, (30466), 1931 states have call successors, (1931), 1480 states have call predecessors, (1931), 2064 states have return successors, (3537), 2030 states have call predecessors, (3537), 1931 states have call successors, (3537) [2023-11-29 05:03:13,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28076 states to 28076 states and 35934 transitions. [2023-11-29 05:03:13,629 INFO L78 Accepts]: Start accepts. Automaton has 28076 states and 35934 transitions. Word has length 149 [2023-11-29 05:03:13,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:13,630 INFO L495 AbstractCegarLoop]: Abstraction has 28076 states and 35934 transitions. [2023-11-29 05:03:13,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.666666666666664) internal successors, (122), 3 states have internal predecessors, (122), 3 states have call successors, (11), 3 states have call predecessors, (11), 3 states have return successors, (11), 3 states have call predecessors, (11), 3 states have call successors, (11) [2023-11-29 05:03:13,630 INFO L276 IsEmpty]: Start isEmpty. Operand 28076 states and 35934 transitions. [2023-11-29 05:03:13,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2023-11-29 05:03:13,645 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:13,645 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:03:13,650 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2023-11-29 05:03:13,846 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2023-11-29 05:03:13,846 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:13,846 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:13,846 INFO L85 PathProgramCache]: Analyzing trace with hash 1895509714, now seen corresponding path program 1 times [2023-11-29 05:03:13,846 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:13,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395399754] [2023-11-29 05:03:13,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:13,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:13,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:03:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:03:13,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:03:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:03:13,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:03:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 05:03:13,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:03:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:13,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 05:03:13,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:13,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2023-11-29 05:03:13,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:13,954 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 05:03:13,955 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:13,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395399754] [2023-11-29 05:03:13,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [395399754] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:03:13,955 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448721977] [2023-11-29 05:03:13,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:13,955 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:03:13,955 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:03:13,956 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:03:13,962 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2023-11-29 05:03:14,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:14,066 INFO L262 TraceCheckSpWp]: Trace formula consists of 529 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-29 05:03:14,068 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:03:14,089 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2023-11-29 05:03:14,089 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:03:14,089 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448721977] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:14,089 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:03:14,090 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2023-11-29 05:03:14,090 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126818410] [2023-11-29 05:03:14,090 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:14,090 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:03:14,090 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:14,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:03:14,091 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:03:14,091 INFO L87 Difference]: Start difference. First operand 28076 states and 35934 transitions. Second operand has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:03:15,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:15,124 INFO L93 Difference]: Finished difference Result 40654 states and 52475 transitions. [2023-11-29 05:03:15,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:03:15,124 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) Word has length 150 [2023-11-29 05:03:15,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:15,179 INFO L225 Difference]: With dead ends: 40654 [2023-11-29 05:03:15,180 INFO L226 Difference]: Without dead ends: 28124 [2023-11-29 05:03:15,201 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 176 GetRequests, 171 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:03:15,201 INFO L413 NwaCegarLoop]: 4219 mSDtfsCounter, 135 mSDsluCounter, 4094 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 135 SdHoareTripleChecker+Valid, 8313 SdHoareTripleChecker+Invalid, 44 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:15,202 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [135 Valid, 8313 Invalid, 44 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:03:15,224 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28124 states. [2023-11-29 05:03:16,242 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28124 to 28076. [2023-11-29 05:03:16,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28076 states, 24079 states have (on average 1.2547032684081565) internal successors, (30212), 24573 states have internal predecessors, (30212), 1931 states have call successors, (1931), 1480 states have call predecessors, (1931), 2064 states have return successors, (3537), 2030 states have call predecessors, (3537), 1931 states have call successors, (3537) [2023-11-29 05:03:16,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28076 states to 28076 states and 35680 transitions. [2023-11-29 05:03:16,321 INFO L78 Accepts]: Start accepts. Automaton has 28076 states and 35680 transitions. Word has length 150 [2023-11-29 05:03:16,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:16,321 INFO L495 AbstractCegarLoop]: Abstraction has 28076 states and 35680 transitions. [2023-11-29 05:03:16,322 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 35.666666666666664) internal successors, (107), 3 states have internal predecessors, (107), 3 states have call successors, (10), 3 states have call predecessors, (10), 2 states have return successors, (10), 2 states have call predecessors, (10), 3 states have call successors, (10) [2023-11-29 05:03:16,322 INFO L276 IsEmpty]: Start isEmpty. Operand 28076 states and 35680 transitions. [2023-11-29 05:03:16,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 05:03:16,338 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:16,338 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:03:16,343 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2023-11-29 05:03:16,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2023-11-29 05:03:16,538 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:16,539 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:16,539 INFO L85 PathProgramCache]: Analyzing trace with hash -35872841, now seen corresponding path program 1 times [2023-11-29 05:03:16,539 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:16,539 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135967502] [2023-11-29 05:03:16,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:16,539 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:16,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:03:16,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:03:16,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:03:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:03:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:03:16,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 05:03:16,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:03:16,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:16,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 05:03:16,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-29 05:03:16,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,623 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 05:03:16,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:16,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135967502] [2023-11-29 05:03:16,624 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135967502] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:03:16,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1894813531] [2023-11-29 05:03:16,624 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:16,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:03:16,624 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:03:16,625 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:03:16,627 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2023-11-29 05:03:16,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:16,731 INFO L262 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 6 conjunts are in the unsatisfiable core [2023-11-29 05:03:16,733 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:03:16,832 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 33 proven. 0 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2023-11-29 05:03:16,833 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:03:16,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1894813531] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:16,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:03:16,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 9 [2023-11-29 05:03:16,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [981992389] [2023-11-29 05:03:16,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:16,834 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-11-29 05:03:16,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:16,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-11-29 05:03:16,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2023-11-29 05:03:16,835 INFO L87 Difference]: Start difference. First operand 28076 states and 35680 transitions. Second operand has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:03:17,858 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:17,858 INFO L93 Difference]: Finished difference Result 37698 states and 47779 transitions. [2023-11-29 05:03:17,858 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:03:17,859 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 151 [2023-11-29 05:03:17,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:17,895 INFO L225 Difference]: With dead ends: 37698 [2023-11-29 05:03:17,896 INFO L226 Difference]: Without dead ends: 20707 [2023-11-29 05:03:17,916 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 178 GetRequests, 170 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2023-11-29 05:03:17,917 INFO L413 NwaCegarLoop]: 4049 mSDtfsCounter, 4122 mSDsluCounter, 8052 mSDsCounter, 0 mSdLazyCounter, 177 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4131 SdHoareTripleChecker+Valid, 12101 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 177 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:17,918 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4131 Valid, 12101 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 177 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-11-29 05:03:17,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20707 states. [2023-11-29 05:03:18,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20707 to 20647. [2023-11-29 05:03:18,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20647 states, 17810 states have (on average 1.2582257158899495) internal successors, (22409), 18137 states have internal predecessors, (22409), 1387 states have call successors, (1387), 1056 states have call predecessors, (1387), 1448 states have return successors, (2451), 1457 states have call predecessors, (2451), 1387 states have call successors, (2451) [2023-11-29 05:03:18,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20647 states to 20647 states and 26247 transitions. [2023-11-29 05:03:18,775 INFO L78 Accepts]: Start accepts. Automaton has 20647 states and 26247 transitions. Word has length 151 [2023-11-29 05:03:18,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:18,775 INFO L495 AbstractCegarLoop]: Abstraction has 20647 states and 26247 transitions. [2023-11-29 05:03:18,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.0) internal successors, (90), 4 states have internal predecessors, (90), 2 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:03:18,776 INFO L276 IsEmpty]: Start isEmpty. Operand 20647 states and 26247 transitions. [2023-11-29 05:03:18,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 05:03:18,784 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:18,784 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2023-11-29 05:03:18,790 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2023-11-29 05:03:18,985 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2023-11-29 05:03:18,985 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:18,985 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:18,985 INFO L85 PathProgramCache]: Analyzing trace with hash 435483509, now seen corresponding path program 1 times [2023-11-29 05:03:18,985 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:18,985 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664387762] [2023-11-29 05:03:18,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:18,986 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:18,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:03:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:03:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:03:19,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:03:19,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:03:19,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 05:03:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:03:19,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:19,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-11-29 05:03:19,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:19,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-29 05:03:19,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,086 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2023-11-29 05:03:19,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:19,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664387762] [2023-11-29 05:03:19,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [664387762] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:03:19,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640083124] [2023-11-29 05:03:19,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:19,087 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:03:19,087 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:03:19,088 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:03:19,089 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2023-11-29 05:03:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:19,193 INFO L262 TraceCheckSpWp]: Trace formula consists of 528 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:03:19,196 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:03:19,204 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2023-11-29 05:03:19,204 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:03:19,205 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640083124] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:19,205 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:03:19,205 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-11-29 05:03:19,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098183255] [2023-11-29 05:03:19,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:19,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:03:19,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:19,206 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:03:19,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:03:19,207 INFO L87 Difference]: Start difference. First operand 20647 states and 26247 transitions. Second operand has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:03:19,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:19,973 INFO L93 Difference]: Finished difference Result 33074 states and 41670 transitions. [2023-11-29 05:03:19,973 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:03:19,974 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 151 [2023-11-29 05:03:19,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:20,002 INFO L225 Difference]: With dead ends: 33074 [2023-11-29 05:03:20,002 INFO L226 Difference]: Without dead ends: 14557 [2023-11-29 05:03:20,023 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:03:20,024 INFO L413 NwaCegarLoop]: 4102 mSDtfsCounter, 20 mSDsluCounter, 8196 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 12298 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:20,024 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 12298 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:03:20,037 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14557 states. [2023-11-29 05:03:20,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14557 to 14285. [2023-11-29 05:03:20,626 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14285 states, 12339 states have (on average 1.275386984358538) internal successors, (15737), 12549 states have internal predecessors, (15737), 956 states have call successors, (956), 736 states have call predecessors, (956), 988 states have return successors, (1535), 1001 states have call predecessors, (1535), 956 states have call successors, (1535) [2023-11-29 05:03:20,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14285 states to 14285 states and 18228 transitions. [2023-11-29 05:03:20,654 INFO L78 Accepts]: Start accepts. Automaton has 14285 states and 18228 transitions. Word has length 151 [2023-11-29 05:03:20,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:20,655 INFO L495 AbstractCegarLoop]: Abstraction has 14285 states and 18228 transitions. [2023-11-29 05:03:20,655 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.0) internal successors, (80), 4 states have internal predecessors, (80), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:03:20,655 INFO L276 IsEmpty]: Start isEmpty. Operand 14285 states and 18228 transitions. [2023-11-29 05:03:20,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 05:03:20,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:20,660 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:03:20,665 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2023-11-29 05:03:20,860 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2023-11-29 05:03:20,861 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:20,861 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:20,861 INFO L85 PathProgramCache]: Analyzing trace with hash -1100071361, now seen corresponding path program 1 times [2023-11-29 05:03:20,861 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:20,861 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [812084130] [2023-11-29 05:03:20,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:20,862 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:03:20,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:03:20,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:03:20,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:03:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:03:20,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 05:03:20,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:03:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:20,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 05:03:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-29 05:03:20,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:20,946 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 76 trivial. 0 not checked. [2023-11-29 05:03:20,946 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:20,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [812084130] [2023-11-29 05:03:20,946 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [812084130] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:03:20,946 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [251922794] [2023-11-29 05:03:20,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:20,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:03:20,947 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:03:20,947 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:03:20,948 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2023-11-29 05:03:21,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:21,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 526 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:03:21,065 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:03:21,072 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 19 proven. 0 refuted. 0 times theorem prover too weak. 75 trivial. 0 not checked. [2023-11-29 05:03:21,072 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:03:21,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [251922794] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:21,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:03:21,073 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-11-29 05:03:21,073 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749214336] [2023-11-29 05:03:21,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:21,073 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:03:21,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:21,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:03:21,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:03:21,074 INFO L87 Difference]: Start difference. First operand 14285 states and 18228 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:03:21,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:21,568 INFO L93 Difference]: Finished difference Result 24323 states and 30365 transitions. [2023-11-29 05:03:21,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:03:21,568 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 151 [2023-11-29 05:03:21,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:21,590 INFO L225 Difference]: With dead ends: 24323 [2023-11-29 05:03:21,590 INFO L226 Difference]: Without dead ends: 12168 [2023-11-29 05:03:21,604 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:03:21,605 INFO L413 NwaCegarLoop]: 4101 mSDtfsCounter, 11 mSDsluCounter, 8196 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 12297 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:21,605 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 12297 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:03:21,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12168 states. [2023-11-29 05:03:22,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12168 to 12144. [2023-11-29 05:03:22,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12144 states, 10507 states have (on average 1.2785761873037023) internal successors, (13434), 10667 states have internal predecessors, (13434), 813 states have call successors, (813), 620 states have call predecessors, (813), 822 states have return successors, (1201), 858 states have call predecessors, (1201), 813 states have call successors, (1201) [2023-11-29 05:03:22,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12144 states to 12144 states and 15448 transitions. [2023-11-29 05:03:22,083 INFO L78 Accepts]: Start accepts. Automaton has 12144 states and 15448 transitions. Word has length 151 [2023-11-29 05:03:22,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:22,084 INFO L495 AbstractCegarLoop]: Abstraction has 12144 states and 15448 transitions. [2023-11-29 05:03:22,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 4 states have internal predecessors, (85), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:03:22,084 INFO L276 IsEmpty]: Start isEmpty. Operand 12144 states and 15448 transitions. [2023-11-29 05:03:22,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2023-11-29 05:03:22,088 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:22,088 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:03:22,093 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2023-11-29 05:03:22,288 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2023-11-29 05:03:22,288 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:22,289 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:22,289 INFO L85 PathProgramCache]: Analyzing trace with hash 197297793, now seen corresponding path program 1 times [2023-11-29 05:03:22,289 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:22,289 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125456196] [2023-11-29 05:03:22,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:22,289 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:22,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:03:22,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:03:22,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:03:22,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:03:22,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:03:22,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2023-11-29 05:03:22,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-11-29 05:03:22,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:22,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 05:03:22,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:22,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-11-29 05:03:22,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,373 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2023-11-29 05:03:22,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:22,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125456196] [2023-11-29 05:03:22,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125456196] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-29 05:03:22,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [113398340] [2023-11-29 05:03:22,373 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:22,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-29 05:03:22,374 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 [2023-11-29 05:03:22,374 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-29 05:03:22,375 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2023-11-29 05:03:22,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:22,467 INFO L262 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 7 conjunts are in the unsatisfiable core [2023-11-29 05:03:22,469 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-29 05:03:22,478 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 29 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2023-11-29 05:03:22,478 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-29 05:03:22,479 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [113398340] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:22,479 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-29 05:03:22,479 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 6 [2023-11-29 05:03:22,479 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376496365] [2023-11-29 05:03:22,479 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:22,480 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:03:22,480 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:22,481 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:03:22,481 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:03:22,481 INFO L87 Difference]: Start difference. First operand 12144 states and 15448 transitions. Second operand has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:03:22,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:22,775 INFO L93 Difference]: Finished difference Result 17051 states and 21177 transitions. [2023-11-29 05:03:22,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:03:22,776 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 151 [2023-11-29 05:03:22,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:22,782 INFO L225 Difference]: With dead ends: 17051 [2023-11-29 05:03:22,782 INFO L226 Difference]: Without dead ends: 5165 [2023-11-29 05:03:22,791 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 177 GetRequests, 173 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-11-29 05:03:22,791 INFO L413 NwaCegarLoop]: 4101 mSDtfsCounter, 2 mSDsluCounter, 8197 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 12298 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:22,791 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 12298 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-11-29 05:03:22,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5165 states. [2023-11-29 05:03:22,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5165 to 5165. [2023-11-29 05:03:22,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5165 states, 4671 states have (on average 1.4500107043459645) internal successors, (6773), 4693 states have internal predecessors, (6773), 276 states have call successors, (276), 200 states have call predecessors, (276), 216 states have return successors, (301), 273 states have call predecessors, (301), 276 states have call successors, (301) [2023-11-29 05:03:22,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5165 states to 5165 states and 7350 transitions. [2023-11-29 05:03:22,965 INFO L78 Accepts]: Start accepts. Automaton has 5165 states and 7350 transitions. Word has length 151 [2023-11-29 05:03:22,966 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:22,966 INFO L495 AbstractCegarLoop]: Abstraction has 5165 states and 7350 transitions. [2023-11-29 05:03:22,966 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 22.25) internal successors, (89), 4 states have internal predecessors, (89), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2023-11-29 05:03:22,966 INFO L276 IsEmpty]: Start isEmpty. Operand 5165 states and 7350 transitions. [2023-11-29 05:03:22,968 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2023-11-29 05:03:22,968 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:22,968 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:03:22,973 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2023-11-29 05:03:23,169 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_168cd740-d2c5-4e57-83a8-d025a8261d32/bin/uautomizer-verify-BQ2R08f2Ya/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2023-11-29 05:03:23,169 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:23,169 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:23,169 INFO L85 PathProgramCache]: Analyzing trace with hash 944244350, now seen corresponding path program 1 times [2023-11-29 05:03:23,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:23,169 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802818109] [2023-11-29 05:03:23,169 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:23,170 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:23,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2023-11-29 05:03:23,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2023-11-29 05:03:23,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-11-29 05:03:23,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2023-11-29 05:03:23,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-11-29 05:03:23,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-11-29 05:03:23,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2023-11-29 05:03:23,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:23,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2023-11-29 05:03:23,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:23,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2023-11-29 05:03:23,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-11-29 05:03:23,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2023-11-29 05:03:23,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:23,353 INFO L134 CoverageAnalysis]: Checked inductivity of 153 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 127 trivial. 0 not checked. [2023-11-29 05:03:23,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:23,353 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802818109] [2023-11-29 05:03:23,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [802818109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:23,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:03:23,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-11-29 05:03:23,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046682900] [2023-11-29 05:03:23,354 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:23,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-11-29 05:03:23,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:23,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-11-29 05:03:23,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2023-11-29 05:03:23,355 INFO L87 Difference]: Start difference. First operand 5165 states and 7350 transitions. Second operand has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 5 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 05:03:24,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:24,385 INFO L93 Difference]: Finished difference Result 5381 states and 7574 transitions. [2023-11-29 05:03:24,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-11-29 05:03:24,385 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 5 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) Word has length 183 [2023-11-29 05:03:24,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:24,388 INFO L225 Difference]: With dead ends: 5381 [2023-11-29 05:03:24,388 INFO L226 Difference]: Without dead ends: 2122 [2023-11-29 05:03:24,391 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=184, Unknown=0, NotChecked=0, Total=240 [2023-11-29 05:03:24,391 INFO L413 NwaCegarLoop]: 4141 mSDtfsCounter, 4595 mSDsluCounter, 16264 mSDsCounter, 0 mSdLazyCounter, 900 mSolverCounterSat, 69 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4628 SdHoareTripleChecker+Valid, 20405 SdHoareTripleChecker+Invalid, 969 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 69 IncrementalHoareTripleChecker+Valid, 900 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:24,391 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4628 Valid, 20405 Invalid, 969 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [69 Valid, 900 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2023-11-29 05:03:24,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2122 states. [2023-11-29 05:03:24,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2122 to 2122. [2023-11-29 05:03:24,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2122 states, 2121 states have (on average 1.866100895803866) internal successors, (3958), 2121 states have internal predecessors, (3958), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:24,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2122 states to 2122 states and 3958 transitions. [2023-11-29 05:03:24,415 INFO L78 Accepts]: Start accepts. Automaton has 2122 states and 3958 transitions. Word has length 183 [2023-11-29 05:03:24,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:24,415 INFO L495 AbstractCegarLoop]: Abstraction has 2122 states and 3958 transitions. [2023-11-29 05:03:24,415 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.857142857142858) internal successors, (104), 5 states have internal predecessors, (104), 5 states have call successors, (10), 3 states have call predecessors, (10), 1 states have return successors, (10), 4 states have call predecessors, (10), 5 states have call successors, (10) [2023-11-29 05:03:24,415 INFO L276 IsEmpty]: Start isEmpty. Operand 2122 states and 3958 transitions. [2023-11-29 05:03:24,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1654 [2023-11-29 05:03:24,433 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:24,434 INFO L195 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:03:24,434 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2023-11-29 05:03:24,434 INFO L420 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:24,434 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:24,435 INFO L85 PathProgramCache]: Analyzing trace with hash 2109015020, now seen corresponding path program 1 times [2023-11-29 05:03:24,435 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:24,435 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1176080784] [2023-11-29 05:03:24,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:24,435 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:25,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:03:25,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:25,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1176080784] [2023-11-29 05:03:25,867 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1176080784] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:25,867 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:03:25,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:03:25,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [418834242] [2023-11-29 05:03:25,868 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:25,870 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:03:25,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:25,872 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:03:25,873 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:03:25,873 INFO L87 Difference]: Start difference. First operand 2122 states and 3958 transitions. Second operand has 3 states, 3 states have (on average 551.0) internal successors, (1653), 2 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:31,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:31,754 INFO L93 Difference]: Finished difference Result 6076 states and 11441 transitions. [2023-11-29 05:03:31,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:03:31,755 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 551.0) internal successors, (1653), 2 states have internal predecessors, (1653), 0 states have call successors, (0), 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 1653 [2023-11-29 05:03:31,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:31,762 INFO L225 Difference]: With dead ends: 6076 [2023-11-29 05:03:31,762 INFO L226 Difference]: Without dead ends: 3956 [2023-11-29 05:03:31,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:03:31,765 INFO L413 NwaCegarLoop]: 739 mSDtfsCounter, 517 mSDsluCounter, 88 mSDsCounter, 0 mSdLazyCounter, 5894 mSolverCounterSat, 1830 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 517 SdHoareTripleChecker+Valid, 827 SdHoareTripleChecker+Invalid, 7724 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1830 IncrementalHoareTripleChecker+Valid, 5894 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:31,765 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [517 Valid, 827 Invalid, 7724 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1830 Valid, 5894 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2023-11-29 05:03:31,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3956 states. [2023-11-29 05:03:31,802 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3956 to 3893. [2023-11-29 05:03:31,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3893 states, 3892 states have (on average 1.8661356628982528) internal successors, (7263), 3892 states have internal predecessors, (7263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:31,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3893 states to 3893 states and 7263 transitions. [2023-11-29 05:03:31,813 INFO L78 Accepts]: Start accepts. Automaton has 3893 states and 7263 transitions. Word has length 1653 [2023-11-29 05:03:31,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:31,815 INFO L495 AbstractCegarLoop]: Abstraction has 3893 states and 7263 transitions. [2023-11-29 05:03:31,815 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 551.0) internal successors, (1653), 2 states have internal predecessors, (1653), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:31,816 INFO L276 IsEmpty]: Start isEmpty. Operand 3893 states and 7263 transitions. [2023-11-29 05:03:31,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1660 [2023-11-29 05:03:31,836 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:31,837 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:03:31,837 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2023-11-29 05:03:31,837 INFO L420 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:31,838 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:31,838 INFO L85 PathProgramCache]: Analyzing trace with hash 813703829, now seen corresponding path program 1 times [2023-11-29 05:03:31,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:31,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397809892] [2023-11-29 05:03:31,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:31,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:32,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:32,984 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:03:32,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:32,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397809892] [2023-11-29 05:03:32,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397809892] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:32,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:03:32,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:03:32,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [413187372] [2023-11-29 05:03:32,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:32,987 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:03:32,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:32,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:03:32,989 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:03:32,989 INFO L87 Difference]: Start difference. First operand 3893 states and 7263 transitions. Second operand has 3 states, 3 states have (on average 553.0) internal successors, (1659), 2 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:38,749 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:38,749 INFO L93 Difference]: Finished difference Result 11236 states and 21147 transitions. [2023-11-29 05:03:38,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:03:38,750 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 553.0) internal successors, (1659), 2 states have internal predecessors, (1659), 0 states have call successors, (0), 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 1659 [2023-11-29 05:03:38,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:38,759 INFO L225 Difference]: With dead ends: 11236 [2023-11-29 05:03:38,759 INFO L226 Difference]: Without dead ends: 7345 [2023-11-29 05:03:38,762 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:03:38,763 INFO L413 NwaCegarLoop]: 1719 mSDtfsCounter, 1950 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 5564 mSolverCounterSat, 1409 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1950 SdHoareTripleChecker+Valid, 2028 SdHoareTripleChecker+Invalid, 6973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1409 IncrementalHoareTripleChecker+Valid, 5564 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:38,763 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1950 Valid, 2028 Invalid, 6973 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1409 Valid, 5564 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2023-11-29 05:03:38,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7345 states. [2023-11-29 05:03:38,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7345 to 7338. [2023-11-29 05:03:38,842 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7338 states, 7337 states have (on average 1.6152378356276407) internal successors, (11851), 7337 states have internal predecessors, (11851), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:38,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7338 states to 7338 states and 11851 transitions. [2023-11-29 05:03:38,858 INFO L78 Accepts]: Start accepts. Automaton has 7338 states and 11851 transitions. Word has length 1659 [2023-11-29 05:03:38,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:38,859 INFO L495 AbstractCegarLoop]: Abstraction has 7338 states and 11851 transitions. [2023-11-29 05:03:38,859 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 553.0) internal successors, (1659), 2 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:38,860 INFO L276 IsEmpty]: Start isEmpty. Operand 7338 states and 11851 transitions. [2023-11-29 05:03:38,886 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1661 [2023-11-29 05:03:38,886 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:38,887 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:03:38,887 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2023-11-29 05:03:38,887 INFO L420 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:38,887 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:38,888 INFO L85 PathProgramCache]: Analyzing trace with hash 518960088, now seen corresponding path program 1 times [2023-11-29 05:03:38,888 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:38,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1123753466] [2023-11-29 05:03:38,888 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:38,888 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:39,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:41,847 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:03:41,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:41,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1123753466] [2023-11-29 05:03:41,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1123753466] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:41,848 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:03:41,848 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:03:41,848 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [421324271] [2023-11-29 05:03:41,848 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:41,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-11-29 05:03:41,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:41,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-11-29 05:03:41,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:03:41,853 INFO L87 Difference]: Start difference. First operand 7338 states and 11851 transitions. Second operand has 4 states, 4 states have (on average 415.0) internal successors, (1660), 3 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:51,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:51,953 INFO L93 Difference]: Finished difference Result 23108 states and 38076 transitions. [2023-11-29 05:03:51,954 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-11-29 05:03:51,954 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 415.0) internal successors, (1660), 3 states have internal predecessors, (1660), 0 states have call successors, (0), 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 1660 [2023-11-29 05:03:51,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:51,972 INFO L225 Difference]: With dead ends: 23108 [2023-11-29 05:03:51,972 INFO L226 Difference]: Without dead ends: 14120 [2023-11-29 05:03:51,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-11-29 05:03:51,979 INFO L413 NwaCegarLoop]: 1038 mSDtfsCounter, 2406 mSDsluCounter, 418 mSDsCounter, 0 mSdLazyCounter, 9717 mSolverCounterSat, 3760 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2406 SdHoareTripleChecker+Valid, 1456 SdHoareTripleChecker+Invalid, 13477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3760 IncrementalHoareTripleChecker+Valid, 9717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:51,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2406 Valid, 1456 Invalid, 13477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3760 Valid, 9717 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2023-11-29 05:03:51,990 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14120 states. [2023-11-29 05:03:52,099 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14120 to 14120. [2023-11-29 05:03:52,108 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14120 states, 14119 states have (on average 1.296763226857426) internal successors, (18309), 14119 states have internal predecessors, (18309), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:52,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14120 states to 14120 states and 18309 transitions. [2023-11-29 05:03:52,129 INFO L78 Accepts]: Start accepts. Automaton has 14120 states and 18309 transitions. Word has length 1660 [2023-11-29 05:03:52,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:52,129 INFO L495 AbstractCegarLoop]: Abstraction has 14120 states and 18309 transitions. [2023-11-29 05:03:52,130 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 415.0) internal successors, (1660), 3 states have internal predecessors, (1660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:52,130 INFO L276 IsEmpty]: Start isEmpty. Operand 14120 states and 18309 transitions. [2023-11-29 05:03:52,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1670 [2023-11-29 05:03:52,158 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:52,159 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:03:52,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2023-11-29 05:03:52,159 INFO L420 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:52,160 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:52,160 INFO L85 PathProgramCache]: Analyzing trace with hash -1377988990, now seen corresponding path program 1 times [2023-11-29 05:03:52,160 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:52,160 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533094208] [2023-11-29 05:03:52,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:52,160 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:52,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:03:53,247 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 05:03:53,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:03:53,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533094208] [2023-11-29 05:03:53,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533094208] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:03:53,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:03:53,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:03:53,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [630693237] [2023-11-29 05:03:53,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:03:53,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:03:53,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:03:53,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:03:53,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:03:53,253 INFO L87 Difference]: Start difference. First operand 14120 states and 18309 transitions. Second operand has 3 states, 3 states have (on average 553.0) internal successors, (1659), 2 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:57,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:03:57,939 INFO L93 Difference]: Finished difference Result 41844 states and 54241 transitions. [2023-11-29 05:03:57,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:03:57,940 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 553.0) internal successors, (1659), 2 states have internal predecessors, (1659), 0 states have call successors, (0), 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 1669 [2023-11-29 05:03:57,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:03:57,968 INFO L225 Difference]: With dead ends: 41844 [2023-11-29 05:03:57,968 INFO L226 Difference]: Without dead ends: 27726 [2023-11-29 05:03:57,978 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:03:57,979 INFO L413 NwaCegarLoop]: 1032 mSDtfsCounter, 2404 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 4608 mSolverCounterSat, 911 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2404 SdHoareTripleChecker+Valid, 1205 SdHoareTripleChecker+Invalid, 5519 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 911 IncrementalHoareTripleChecker+Valid, 4608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:03:57,979 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2404 Valid, 1205 Invalid, 5519 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [911 Valid, 4608 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-29 05:03:58,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27726 states. [2023-11-29 05:03:58,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27726 to 27724. [2023-11-29 05:03:58,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27724 states, 27723 states have (on average 1.2163546513725065) internal successors, (33721), 27723 states have internal predecessors, (33721), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:58,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27724 states to 27724 states and 33721 transitions. [2023-11-29 05:03:58,270 INFO L78 Accepts]: Start accepts. Automaton has 27724 states and 33721 transitions. Word has length 1669 [2023-11-29 05:03:58,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:03:58,270 INFO L495 AbstractCegarLoop]: Abstraction has 27724 states and 33721 transitions. [2023-11-29 05:03:58,271 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 553.0) internal successors, (1659), 2 states have internal predecessors, (1659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:03:58,271 INFO L276 IsEmpty]: Start isEmpty. Operand 27724 states and 33721 transitions. [2023-11-29 05:03:58,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1672 [2023-11-29 05:03:58,308 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:03:58,309 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:03:58,309 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2023-11-29 05:03:58,309 INFO L420 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:03:58,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:03:58,310 INFO L85 PathProgramCache]: Analyzing trace with hash 450004538, now seen corresponding path program 1 times [2023-11-29 05:03:58,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:03:58,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228664369] [2023-11-29 05:03:58,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:03:58,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:03:58,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:04:00,034 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 17 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-29 05:04:00,034 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:04:00,034 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [228664369] [2023-11-29 05:04:00,034 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [228664369] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:04:00,034 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:04:00,035 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:04:00,035 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [376574795] [2023-11-29 05:04:00,035 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:04:00,037 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:04:00,037 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:04:00,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:04:00,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:00,040 INFO L87 Difference]: Start difference. First operand 27724 states and 33721 transitions. Second operand has 3 states, 3 states have (on average 557.0) internal successors, (1671), 3 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:04,866 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:04:04,866 INFO L93 Difference]: Finished difference Result 82754 states and 100651 transitions. [2023-11-29 05:04:04,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:04:04,867 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 557.0) internal successors, (1671), 3 states have internal predecessors, (1671), 0 states have call successors, (0), 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 1671 [2023-11-29 05:04:04,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:04:04,932 INFO L225 Difference]: With dead ends: 82754 [2023-11-29 05:04:04,932 INFO L226 Difference]: Without dead ends: 55032 [2023-11-29 05:04:04,953 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:04,954 INFO L413 NwaCegarLoop]: 3185 mSDtfsCounter, 387 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 5090 mSolverCounterSat, 635 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 387 SdHoareTripleChecker+Valid, 3579 SdHoareTripleChecker+Invalid, 5725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 635 IncrementalHoareTripleChecker+Valid, 5090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:04:04,954 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [387 Valid, 3579 Invalid, 5725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [635 Valid, 5090 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-29 05:04:05,002 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55032 states. [2023-11-29 05:04:05,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55032 to 54983. [2023-11-29 05:04:05,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54983 states, 54982 states have (on average 1.1629987996071443) internal successors, (63944), 54982 states have internal predecessors, (63944), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:05,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54983 states to 54983 states and 63944 transitions. [2023-11-29 05:04:05,603 INFO L78 Accepts]: Start accepts. Automaton has 54983 states and 63944 transitions. Word has length 1671 [2023-11-29 05:04:05,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:04:05,604 INFO L495 AbstractCegarLoop]: Abstraction has 54983 states and 63944 transitions. [2023-11-29 05:04:05,605 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 557.0) internal successors, (1671), 3 states have internal predecessors, (1671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:05,605 INFO L276 IsEmpty]: Start isEmpty. Operand 54983 states and 63944 transitions. [2023-11-29 05:04:05,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1771 [2023-11-29 05:04:05,660 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:04:05,661 INFO L195 NwaCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:04:05,661 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2023-11-29 05:04:05,661 INFO L420 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:04:05,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:04:05,662 INFO L85 PathProgramCache]: Analyzing trace with hash -89718237, now seen corresponding path program 1 times [2023-11-29 05:04:05,662 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:04:05,662 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741083772] [2023-11-29 05:04:05,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:04:05,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:04:05,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:04:06,727 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 115 proven. 0 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2023-11-29 05:04:06,728 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:04:06,728 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741083772] [2023-11-29 05:04:06,728 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [741083772] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:04:06,728 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:04:06,728 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:04:06,729 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2062674147] [2023-11-29 05:04:06,729 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:04:06,730 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:04:06,730 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:04:06,732 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:04:06,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:06,733 INFO L87 Difference]: Start difference. First operand 54983 states and 63944 transitions. Second operand has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 2 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:11,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:04:11,424 INFO L93 Difference]: Finished difference Result 109874 states and 127765 transitions. [2023-11-29 05:04:11,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:04:11,425 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 2 states have internal predecessors, (1760), 0 states have call successors, (0), 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 1770 [2023-11-29 05:04:11,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:04:11,481 INFO L225 Difference]: With dead ends: 109874 [2023-11-29 05:04:11,481 INFO L226 Difference]: Without dead ends: 54893 [2023-11-29 05:04:11,499 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:11,499 INFO L413 NwaCegarLoop]: 1075 mSDtfsCounter, 2343 mSDsluCounter, 132 mSDsCounter, 0 mSdLazyCounter, 4232 mSolverCounterSat, 850 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2343 SdHoareTripleChecker+Valid, 1207 SdHoareTripleChecker+Invalid, 5082 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 850 IncrementalHoareTripleChecker+Valid, 4232 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:04:11,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2343 Valid, 1207 Invalid, 5082 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [850 Valid, 4232 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 05:04:11,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54893 states. [2023-11-29 05:04:11,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54893 to 51493. [2023-11-29 05:04:11,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51493 states, 51492 states have (on average 1.1172026722597685) internal successors, (57527), 51492 states have internal predecessors, (57527), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:12,029 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51493 states to 51493 states and 57527 transitions. [2023-11-29 05:04:12,029 INFO L78 Accepts]: Start accepts. Automaton has 51493 states and 57527 transitions. Word has length 1770 [2023-11-29 05:04:12,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:04:12,029 INFO L495 AbstractCegarLoop]: Abstraction has 51493 states and 57527 transitions. [2023-11-29 05:04:12,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 586.6666666666666) internal successors, (1760), 2 states have internal predecessors, (1760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:12,030 INFO L276 IsEmpty]: Start isEmpty. Operand 51493 states and 57527 transitions. [2023-11-29 05:04:12,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1787 [2023-11-29 05:04:12,082 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:04:12,083 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:04:12,083 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2023-11-29 05:04:12,083 INFO L420 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:04:12,084 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:04:12,084 INFO L85 PathProgramCache]: Analyzing trace with hash -1805715652, now seen corresponding path program 1 times [2023-11-29 05:04:12,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:04:12,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [174714378] [2023-11-29 05:04:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:04:12,085 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:04:12,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:04:13,242 INFO L134 CoverageAnalysis]: Checked inductivity of 228 backedges. 174 proven. 0 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2023-11-29 05:04:13,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:04:13,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [174714378] [2023-11-29 05:04:13,243 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [174714378] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:04:13,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:04:13,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:04:13,243 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1221866442] [2023-11-29 05:04:13,243 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:04:13,245 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:04:13,245 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:04:13,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:04:13,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:13,248 INFO L87 Difference]: Start difference. First operand 51493 states and 57527 transitions. Second operand has 3 states, 3 states have (on average 581.6666666666666) internal successors, (1745), 3 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:18,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:04:18,171 INFO L93 Difference]: Finished difference Result 128470 states and 144369 transitions. [2023-11-29 05:04:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:04:18,172 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 581.6666666666666) internal successors, (1745), 3 states have internal predecessors, (1745), 0 states have call successors, (0), 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 1786 [2023-11-29 05:04:18,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:04:18,254 INFO L225 Difference]: With dead ends: 128470 [2023-11-29 05:04:18,254 INFO L226 Difference]: Without dead ends: 76979 [2023-11-29 05:04:18,286 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:18,287 INFO L413 NwaCegarLoop]: 2961 mSDtfsCounter, 1953 mSDsluCounter, 222 mSDsCounter, 0 mSdLazyCounter, 4472 mSolverCounterSat, 1125 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 3183 SdHoareTripleChecker+Invalid, 5597 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1125 IncrementalHoareTripleChecker+Valid, 4472 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2023-11-29 05:04:18,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1953 Valid, 3183 Invalid, 5597 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1125 Valid, 4472 Invalid, 0 Unknown, 0 Unchecked, 4.5s Time] [2023-11-29 05:04:18,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76979 states. [2023-11-29 05:04:18,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76979 to 75273. [2023-11-29 05:04:18,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75273 states, 75272 states have (on average 1.0965033478584334) internal successors, (82536), 75272 states have internal predecessors, (82536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:19,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75273 states to 75273 states and 82536 transitions. [2023-11-29 05:04:19,085 INFO L78 Accepts]: Start accepts. Automaton has 75273 states and 82536 transitions. Word has length 1786 [2023-11-29 05:04:19,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:04:19,086 INFO L495 AbstractCegarLoop]: Abstraction has 75273 states and 82536 transitions. [2023-11-29 05:04:19,086 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 581.6666666666666) internal successors, (1745), 3 states have internal predecessors, (1745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:19,086 INFO L276 IsEmpty]: Start isEmpty. Operand 75273 states and 82536 transitions. [2023-11-29 05:04:19,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1805 [2023-11-29 05:04:19,160 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:04:19,162 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:04:19,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2023-11-29 05:04:19,162 INFO L420 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:04:19,162 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:04:19,163 INFO L85 PathProgramCache]: Analyzing trace with hash 149816001, now seen corresponding path program 1 times [2023-11-29 05:04:19,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:04:19,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806716900] [2023-11-29 05:04:19,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:04:19,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:04:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:04:20,339 INFO L134 CoverageAnalysis]: Checked inductivity of 278 backedges. 111 proven. 0 refuted. 0 times theorem prover too weak. 167 trivial. 0 not checked. [2023-11-29 05:04:20,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:04:20,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806716900] [2023-11-29 05:04:20,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806716900] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:04:20,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:04:20,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:04:20,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249978001] [2023-11-29 05:04:20,341 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:04:20,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:04:20,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:04:20,345 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:04:20,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:20,345 INFO L87 Difference]: Start difference. First operand 75273 states and 82536 transitions. Second operand has 3 states, 3 states have (on average 564.6666666666666) internal successors, (1694), 2 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:25,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:04:25,703 INFO L93 Difference]: Finished difference Result 211694 states and 231696 transitions. [2023-11-29 05:04:25,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:04:25,704 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 564.6666666666666) internal successors, (1694), 2 states have internal predecessors, (1694), 0 states have call successors, (0), 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 1804 [2023-11-29 05:04:25,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:04:25,853 INFO L225 Difference]: With dead ends: 211694 [2023-11-29 05:04:25,854 INFO L226 Difference]: Without dead ends: 136423 [2023-11-29 05:04:25,904 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:25,904 INFO L413 NwaCegarLoop]: 959 mSDtfsCounter, 2092 mSDsluCounter, 127 mSDsCounter, 0 mSdLazyCounter, 4507 mSolverCounterSat, 1361 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2092 SdHoareTripleChecker+Valid, 1086 SdHoareTripleChecker+Invalid, 5868 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1361 IncrementalHoareTripleChecker+Valid, 4507 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:04:25,905 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2092 Valid, 1086 Invalid, 5868 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1361 Valid, 4507 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 05:04:26,023 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136423 states. [2023-11-29 05:04:27,822 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136423 to 133008. [2023-11-29 05:04:27,900 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133008 states, 133007 states have (on average 1.0768982083649732) internal successors, (143235), 133007 states have internal predecessors, (143235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:28,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133008 states to 133008 states and 143235 transitions. [2023-11-29 05:04:28,082 INFO L78 Accepts]: Start accepts. Automaton has 133008 states and 143235 transitions. Word has length 1804 [2023-11-29 05:04:28,082 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:04:28,082 INFO L495 AbstractCegarLoop]: Abstraction has 133008 states and 143235 transitions. [2023-11-29 05:04:28,083 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 564.6666666666666) internal successors, (1694), 2 states have internal predecessors, (1694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:28,083 INFO L276 IsEmpty]: Start isEmpty. Operand 133008 states and 143235 transitions. [2023-11-29 05:04:28,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2236 [2023-11-29 05:04:28,215 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:04:28,216 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:04:28,216 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2023-11-29 05:04:28,217 INFO L420 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:04:28,217 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:04:28,217 INFO L85 PathProgramCache]: Analyzing trace with hash 1927559847, now seen corresponding path program 1 times [2023-11-29 05:04:28,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:04:28,217 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [893511264] [2023-11-29 05:04:28,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:04:28,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:04:28,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:04:30,368 INFO L134 CoverageAnalysis]: Checked inductivity of 759 backedges. 724 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2023-11-29 05:04:30,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:04:30,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [893511264] [2023-11-29 05:04:30,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [893511264] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:04:30,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:04:30,369 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:04:30,369 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973276821] [2023-11-29 05:04:30,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:04:30,371 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:04:30,371 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:04:30,373 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:04:30,373 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:30,374 INFO L87 Difference]: Start difference. First operand 133008 states and 143235 transitions. Second operand has 3 states, 3 states have (on average 733.6666666666666) internal successors, (2201), 3 states have internal predecessors, (2201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:36,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:04:36,330 INFO L93 Difference]: Finished difference Result 325536 states and 350166 transitions. [2023-11-29 05:04:36,330 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:04:36,331 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 733.6666666666666) internal successors, (2201), 3 states have internal predecessors, (2201), 0 states have call successors, (0), 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 2235 [2023-11-29 05:04:36,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:04:36,545 INFO L225 Difference]: With dead ends: 325536 [2023-11-29 05:04:36,545 INFO L226 Difference]: Without dead ends: 192530 [2023-11-29 05:04:36,601 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:36,602 INFO L413 NwaCegarLoop]: 2785 mSDtfsCounter, 1621 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 4823 mSolverCounterSat, 1149 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1621 SdHoareTripleChecker+Valid, 2910 SdHoareTripleChecker+Invalid, 5972 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1149 IncrementalHoareTripleChecker+Valid, 4823 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.1s IncrementalHoareTripleChecker+Time [2023-11-29 05:04:36,602 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1621 Valid, 2910 Invalid, 5972 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1149 Valid, 4823 Invalid, 0 Unknown, 0 Unchecked, 5.1s Time] [2023-11-29 05:04:36,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192530 states. [2023-11-29 05:04:38,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192530 to 183949. [2023-11-29 05:04:38,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183949 states, 183948 states have (on average 1.0740100463174376) internal successors, (197562), 183948 states have internal predecessors, (197562), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:38,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183949 states to 183949 states and 197562 transitions. [2023-11-29 05:04:38,991 INFO L78 Accepts]: Start accepts. Automaton has 183949 states and 197562 transitions. Word has length 2235 [2023-11-29 05:04:38,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:04:38,992 INFO L495 AbstractCegarLoop]: Abstraction has 183949 states and 197562 transitions. [2023-11-29 05:04:38,992 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 733.6666666666666) internal successors, (2201), 3 states have internal predecessors, (2201), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:38,993 INFO L276 IsEmpty]: Start isEmpty. Operand 183949 states and 197562 transitions. [2023-11-29 05:04:39,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2420 [2023-11-29 05:04:39,170 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:04:39,173 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:04:39,173 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2023-11-29 05:04:39,173 INFO L420 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:04:39,173 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:04:39,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1909516937, now seen corresponding path program 1 times [2023-11-29 05:04:39,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:04:39,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767009416] [2023-11-29 05:04:39,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:04:39,175 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:04:39,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:04:41,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1271 backedges. 800 proven. 0 refuted. 0 times theorem prover too weak. 471 trivial. 0 not checked. [2023-11-29 05:04:41,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:04:41,342 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767009416] [2023-11-29 05:04:41,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1767009416] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:04:41,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:04:41,343 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:04:41,343 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [98814448] [2023-11-29 05:04:41,343 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:04:41,344 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:04:41,345 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:04:41,346 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:04:41,347 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:41,347 INFO L87 Difference]: Start difference. First operand 183949 states and 197562 transitions. Second operand has 3 states, 3 states have (on average 650.0) internal successors, (1950), 3 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:46,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:04:46,642 INFO L93 Difference]: Finished difference Result 369601 states and 396786 transitions. [2023-11-29 05:04:46,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:04:46,642 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 650.0) internal successors, (1950), 3 states have internal predecessors, (1950), 0 states have call successors, (0), 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 2419 [2023-11-29 05:04:46,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:04:46,874 INFO L225 Difference]: With dead ends: 369601 [2023-11-29 05:04:46,874 INFO L226 Difference]: Without dead ends: 185654 [2023-11-29 05:04:46,941 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:46,942 INFO L413 NwaCegarLoop]: 2605 mSDtfsCounter, 2103 mSDsluCounter, 100 mSDsCounter, 0 mSdLazyCounter, 4410 mSolverCounterSat, 890 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2103 SdHoareTripleChecker+Valid, 2705 SdHoareTripleChecker+Invalid, 5300 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 890 IncrementalHoareTripleChecker+Valid, 4410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.2s IncrementalHoareTripleChecker+Time [2023-11-29 05:04:46,942 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2103 Valid, 2705 Invalid, 5300 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [890 Valid, 4410 Invalid, 0 Unknown, 0 Unchecked, 4.2s Time] [2023-11-29 05:04:47,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185654 states. [2023-11-29 05:04:48,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185654 to 180552. [2023-11-29 05:04:49,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180552 states, 180551 states have (on average 1.0598556640506007) internal successors, (191358), 180551 states have internal predecessors, (191358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:49,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180552 states to 180552 states and 191358 transitions. [2023-11-29 05:04:49,521 INFO L78 Accepts]: Start accepts. Automaton has 180552 states and 191358 transitions. Word has length 2419 [2023-11-29 05:04:49,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:04:49,522 INFO L495 AbstractCegarLoop]: Abstraction has 180552 states and 191358 transitions. [2023-11-29 05:04:49,523 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 650.0) internal successors, (1950), 3 states have internal predecessors, (1950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:49,523 INFO L276 IsEmpty]: Start isEmpty. Operand 180552 states and 191358 transitions. [2023-11-29 05:04:49,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2428 [2023-11-29 05:04:49,706 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:04:49,707 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:04:49,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2023-11-29 05:04:49,707 INFO L420 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:04:49,707 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:04:49,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1923318831, now seen corresponding path program 1 times [2023-11-29 05:04:49,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:04:49,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847463028] [2023-11-29 05:04:49,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:04:49,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:04:50,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:04:52,064 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 473 proven. 0 refuted. 0 times theorem prover too weak. 804 trivial. 0 not checked. [2023-11-29 05:04:52,064 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:04:52,064 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847463028] [2023-11-29 05:04:52,064 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847463028] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:04:52,065 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:04:52,065 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:04:52,065 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902469462] [2023-11-29 05:04:52,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:04:52,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:04:52,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:04:52,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:04:52,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:52,070 INFO L87 Difference]: Start difference. First operand 180552 states and 191358 transitions. Second operand has 3 states, 3 states have (on average 603.0) internal successors, (1809), 3 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:04:57,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:04:57,989 INFO L93 Difference]: Finished difference Result 366258 states and 387960 transitions. [2023-11-29 05:04:57,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:04:57,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 603.0) internal successors, (1809), 3 states have internal predecessors, (1809), 0 states have call successors, (0), 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 2427 [2023-11-29 05:04:57,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:04:58,223 INFO L225 Difference]: With dead ends: 366258 [2023-11-29 05:04:58,223 INFO L226 Difference]: Without dead ends: 185708 [2023-11-29 05:04:58,281 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:04:58,281 INFO L413 NwaCegarLoop]: 3184 mSDtfsCounter, 1715 mSDsluCounter, 229 mSDsCounter, 0 mSdLazyCounter, 5059 mSolverCounterSat, 776 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1715 SdHoareTripleChecker+Valid, 3413 SdHoareTripleChecker+Invalid, 5835 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 776 IncrementalHoareTripleChecker+Valid, 5059 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:04:58,282 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1715 Valid, 3413 Invalid, 5835 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [776 Valid, 5059 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 05:04:58,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185708 states. [2023-11-29 05:05:00,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185708 to 183949. [2023-11-29 05:05:00,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183949 states, 183948 states have (on average 1.0489975427838303) internal successors, (192961), 183948 states have internal predecessors, (192961), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:00,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183949 states to 183949 states and 192961 transitions. [2023-11-29 05:05:00,759 INFO L78 Accepts]: Start accepts. Automaton has 183949 states and 192961 transitions. Word has length 2427 [2023-11-29 05:05:00,759 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:00,760 INFO L495 AbstractCegarLoop]: Abstraction has 183949 states and 192961 transitions. [2023-11-29 05:05:00,760 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 603.0) internal successors, (1809), 3 states have internal predecessors, (1809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:00,760 INFO L276 IsEmpty]: Start isEmpty. Operand 183949 states and 192961 transitions. [2023-11-29 05:05:00,941 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2555 [2023-11-29 05:05:00,942 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:00,943 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:00,943 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2023-11-29 05:05:00,943 INFO L420 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:00,943 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:00,944 INFO L85 PathProgramCache]: Analyzing trace with hash 843950653, now seen corresponding path program 1 times [2023-11-29 05:05:00,944 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:00,944 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996000684] [2023-11-29 05:05:00,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:00,944 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:01,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:03,126 INFO L134 CoverageAnalysis]: Checked inductivity of 1820 backedges. 981 proven. 0 refuted. 0 times theorem prover too weak. 839 trivial. 0 not checked. [2023-11-29 05:05:03,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:05:03,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [996000684] [2023-11-29 05:05:03,126 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [996000684] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:03,126 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:03,126 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:05:03,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1256803568] [2023-11-29 05:05:03,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:03,128 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:05:03,128 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:05:03,130 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:05:03,130 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:05:03,130 INFO L87 Difference]: Start difference. First operand 183949 states and 192961 transitions. Second operand has 3 states, 3 states have (on average 634.0) internal successors, (1902), 3 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:08,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:05:08,526 INFO L93 Difference]: Finished difference Result 369601 states and 387634 transitions. [2023-11-29 05:05:08,526 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:05:08,527 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 634.0) internal successors, (1902), 3 states have internal predecessors, (1902), 0 states have call successors, (0), 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 2554 [2023-11-29 05:05:08,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:05:08,730 INFO L225 Difference]: With dead ends: 369601 [2023-11-29 05:05:08,730 INFO L226 Difference]: Without dead ends: 185654 [2023-11-29 05:05:08,794 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:05:08,794 INFO L413 NwaCegarLoop]: 875 mSDtfsCounter, 2083 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 4554 mSolverCounterSat, 753 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2083 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 5307 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 753 IncrementalHoareTripleChecker+Valid, 4554 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.4s IncrementalHoareTripleChecker+Time [2023-11-29 05:05:08,795 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2083 Valid, 1050 Invalid, 5307 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [753 Valid, 4554 Invalid, 0 Unknown, 0 Unchecked, 4.4s Time] [2023-11-29 05:05:08,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185654 states. [2023-11-29 05:05:10,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185654 to 178854. [2023-11-29 05:05:10,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 178854 states, 178853 states have (on average 1.0394458018596278) internal successors, (185908), 178853 states have internal predecessors, (185908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:11,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 178854 states to 178854 states and 185908 transitions. [2023-11-29 05:05:11,391 INFO L78 Accepts]: Start accepts. Automaton has 178854 states and 185908 transitions. Word has length 2554 [2023-11-29 05:05:11,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:11,391 INFO L495 AbstractCegarLoop]: Abstraction has 178854 states and 185908 transitions. [2023-11-29 05:05:11,392 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 634.0) internal successors, (1902), 3 states have internal predecessors, (1902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:11,392 INFO L276 IsEmpty]: Start isEmpty. Operand 178854 states and 185908 transitions. [2023-11-29 05:05:11,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2557 [2023-11-29 05:05:11,563 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:11,565 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:11,565 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2023-11-29 05:05:11,565 INFO L420 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:11,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:11,566 INFO L85 PathProgramCache]: Analyzing trace with hash 305559234, now seen corresponding path program 1 times [2023-11-29 05:05:11,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:11,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964455792] [2023-11-29 05:05:11,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:11,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:12,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:13,813 INFO L134 CoverageAnalysis]: Checked inductivity of 2690 backedges. 1440 proven. 0 refuted. 0 times theorem prover too weak. 1250 trivial. 0 not checked. [2023-11-29 05:05:13,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:05:13,813 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964455792] [2023-11-29 05:05:13,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964455792] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:13,814 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:13,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:05:13,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94689641] [2023-11-29 05:05:13,814 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:13,816 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:05:13,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:05:13,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:05:13,818 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:05:13,818 INFO L87 Difference]: Start difference. First operand 178854 states and 185908 transitions. Second operand has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:19,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:05:19,592 INFO L93 Difference]: Finished difference Result 432441 states and 448749 transitions. [2023-11-29 05:05:19,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:05:19,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 0 states have call successors, (0), 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 2556 [2023-11-29 05:05:19,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:05:19,874 INFO L225 Difference]: With dead ends: 432441 [2023-11-29 05:05:19,874 INFO L226 Difference]: Without dead ends: 253589 [2023-11-29 05:05:19,933 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:05:19,934 INFO L413 NwaCegarLoop]: 970 mSDtfsCounter, 1919 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 4565 mSolverCounterSat, 1065 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1919 SdHoareTripleChecker+Valid, 1126 SdHoareTripleChecker+Invalid, 5630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1065 IncrementalHoareTripleChecker+Valid, 4565 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:05:19,934 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1919 Valid, 1126 Invalid, 5630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1065 Valid, 4565 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 05:05:20,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 253589 states. [2023-11-29 05:05:22,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 253589 to 248469. [2023-11-29 05:05:22,857 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 248469 states, 248468 states have (on average 1.0283497271278395) internal successors, (255512), 248468 states have internal predecessors, (255512), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:23,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 248469 states to 248469 states and 255512 transitions. [2023-11-29 05:05:23,217 INFO L78 Accepts]: Start accepts. Automaton has 248469 states and 255512 transitions. Word has length 2556 [2023-11-29 05:05:23,218 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:23,218 INFO L495 AbstractCegarLoop]: Abstraction has 248469 states and 255512 transitions. [2023-11-29 05:05:23,218 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 641.6666666666666) internal successors, (1925), 3 states have internal predecessors, (1925), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:23,218 INFO L276 IsEmpty]: Start isEmpty. Operand 248469 states and 255512 transitions. [2023-11-29 05:05:23,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2766 [2023-11-29 05:05:23,832 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:23,833 INFO L195 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:23,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2023-11-29 05:05:23,833 INFO L420 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:23,834 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:23,834 INFO L85 PathProgramCache]: Analyzing trace with hash -2014837643, now seen corresponding path program 1 times [2023-11-29 05:05:23,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:23,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513680647] [2023-11-29 05:05:23,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:23,835 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:27,721 INFO L134 CoverageAnalysis]: Checked inductivity of 3451 backedges. 1513 proven. 0 refuted. 0 times theorem prover too weak. 1938 trivial. 0 not checked. [2023-11-29 05:05:27,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:05:27,722 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513680647] [2023-11-29 05:05:27,722 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513680647] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:27,722 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:27,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:05:27,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104442258] [2023-11-29 05:05:27,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:27,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:05:27,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:05:27,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:05:27,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:05:27,726 INFO L87 Difference]: Start difference. First operand 248469 states and 255512 transitions. Second operand has 3 states, 3 states have (on average 626.0) internal successors, (1878), 3 states have internal predecessors, (1878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:33,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:05:33,872 INFO L93 Difference]: Finished difference Result 517323 states and 531933 transitions. [2023-11-29 05:05:33,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:05:33,873 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 626.0) internal successors, (1878), 3 states have internal predecessors, (1878), 0 states have call successors, (0), 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 2765 [2023-11-29 05:05:33,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:05:34,178 INFO L225 Difference]: With dead ends: 517323 [2023-11-29 05:05:34,178 INFO L226 Difference]: Without dead ends: 268856 [2023-11-29 05:05:34,235 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:05:34,236 INFO L413 NwaCegarLoop]: 2872 mSDtfsCounter, 1816 mSDsluCounter, 172 mSDsCounter, 0 mSdLazyCounter, 4575 mSolverCounterSat, 593 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1816 SdHoareTripleChecker+Valid, 3044 SdHoareTripleChecker+Invalid, 5168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 593 IncrementalHoareTripleChecker+Valid, 4575 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2023-11-29 05:05:34,236 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1816 Valid, 3044 Invalid, 5168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [593 Valid, 4575 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2023-11-29 05:05:34,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268856 states. [2023-11-29 05:05:37,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268856 to 260355. [2023-11-29 05:05:37,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260355 states, 260354 states have (on average 1.027862064727256) internal successors, (267608), 260354 states have internal predecessors, (267608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:37,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260355 states to 260355 states and 267608 transitions. [2023-11-29 05:05:37,714 INFO L78 Accepts]: Start accepts. Automaton has 260355 states and 267608 transitions. Word has length 2765 [2023-11-29 05:05:37,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:37,715 INFO L495 AbstractCegarLoop]: Abstraction has 260355 states and 267608 transitions. [2023-11-29 05:05:37,716 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 626.0) internal successors, (1878), 3 states have internal predecessors, (1878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:37,716 INFO L276 IsEmpty]: Start isEmpty. Operand 260355 states and 267608 transitions. [2023-11-29 05:05:38,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2810 [2023-11-29 05:05:38,019 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:38,021 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:38,021 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2023-11-29 05:05:38,021 INFO L420 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:38,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:38,022 INFO L85 PathProgramCache]: Analyzing trace with hash 1897982435, now seen corresponding path program 1 times [2023-11-29 05:05:38,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:38,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661555181] [2023-11-29 05:05:38,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:38,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:38,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:42,912 INFO L134 CoverageAnalysis]: Checked inductivity of 4051 backedges. 1543 proven. 0 refuted. 0 times theorem prover too weak. 2508 trivial. 0 not checked. [2023-11-29 05:05:42,912 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:05:42,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661555181] [2023-11-29 05:05:42,912 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661555181] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:42,912 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:42,913 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:05:42,913 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1032982205] [2023-11-29 05:05:42,913 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:42,916 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:05:42,916 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:05:42,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:05:42,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:05:42,919 INFO L87 Difference]: Start difference. First operand 260355 states and 267608 transitions. Second operand has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:49,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:05:49,307 INFO L93 Difference]: Finished difference Result 547937 states and 563156 transitions. [2023-11-29 05:05:49,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:05:49,308 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 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 2809 [2023-11-29 05:05:49,309 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:05:49,658 INFO L225 Difference]: With dead ends: 547937 [2023-11-29 05:05:49,658 INFO L226 Difference]: Without dead ends: 287584 [2023-11-29 05:05:49,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:05:49,769 INFO L413 NwaCegarLoop]: 2903 mSDtfsCounter, 1820 mSDsluCounter, 184 mSDsCounter, 0 mSdLazyCounter, 4869 mSolverCounterSat, 622 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1820 SdHoareTripleChecker+Valid, 3087 SdHoareTripleChecker+Invalid, 5491 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 622 IncrementalHoareTripleChecker+Valid, 4869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:05:49,769 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1820 Valid, 3087 Invalid, 5491 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [622 Valid, 4869 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 05:05:50,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287584 states. [2023-11-29 05:05:53,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287584 to 280737. [2023-11-29 05:05:53,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280737 states, 280736 states have (on average 1.0274065314031688) internal successors, (288430), 280736 states have internal predecessors, (288430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:53,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280737 states to 280737 states and 288430 transitions. [2023-11-29 05:05:53,595 INFO L78 Accepts]: Start accepts. Automaton has 280737 states and 288430 transitions. Word has length 2809 [2023-11-29 05:05:53,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:05:53,596 INFO L495 AbstractCegarLoop]: Abstraction has 280737 states and 288430 transitions. [2023-11-29 05:05:53,596 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 617.3333333333334) internal successors, (1852), 3 states have internal predecessors, (1852), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:05:53,596 INFO L276 IsEmpty]: Start isEmpty. Operand 280737 states and 288430 transitions. [2023-11-29 05:05:54,316 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2868 [2023-11-29 05:05:54,316 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:05:54,318 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:05:54,318 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2023-11-29 05:05:54,318 INFO L420 AbstractCegarLoop]: === Iteration 43 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:05:54,318 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:05:54,319 INFO L85 PathProgramCache]: Analyzing trace with hash -238537342, now seen corresponding path program 1 times [2023-11-29 05:05:54,319 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:05:54,319 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800036574] [2023-11-29 05:05:54,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:05:54,319 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:05:54,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:05:57,135 INFO L134 CoverageAnalysis]: Checked inductivity of 2908 backedges. 2215 proven. 0 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2023-11-29 05:05:57,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:05:57,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800036574] [2023-11-29 05:05:57,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1800036574] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:05:57,135 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:05:57,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:05:57,136 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790482995] [2023-11-29 05:05:57,136 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:05:57,139 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:05:57,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:05:57,142 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:05:57,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:05:57,143 INFO L87 Difference]: Start difference. First operand 280737 states and 288430 transitions. Second operand has 3 states, 3 states have (on average 770.6666666666666) internal successors, (2312), 3 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:03,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:03,986 INFO L93 Difference]: Finished difference Result 649767 states and 667719 transitions. [2023-11-29 05:06:03,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:06:03,987 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 770.6666666666666) internal successors, (2312), 3 states have internal predecessors, (2312), 0 states have call successors, (0), 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 2867 [2023-11-29 05:06:03,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:04,404 INFO L225 Difference]: With dead ends: 649767 [2023-11-29 05:06:04,405 INFO L226 Difference]: Without dead ends: 369032 [2023-11-29 05:06:04,477 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:06:04,478 INFO L413 NwaCegarLoop]: 874 mSDtfsCounter, 2268 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 4377 mSolverCounterSat, 1147 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2268 SdHoareTripleChecker+Valid, 982 SdHoareTripleChecker+Invalid, 5524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1147 IncrementalHoareTripleChecker+Valid, 4377 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:04,478 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2268 Valid, 982 Invalid, 5524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1147 Valid, 4377 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2023-11-29 05:06:04,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369032 states. [2023-11-29 05:06:07,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369032 to 365632. [2023-11-29 05:06:08,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 365632 states, 365631 states have (on average 1.0248036955290991) internal successors, (374700), 365631 states have internal predecessors, (374700), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:09,025 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 365632 states to 365632 states and 374700 transitions. [2023-11-29 05:06:09,025 INFO L78 Accepts]: Start accepts. Automaton has 365632 states and 374700 transitions. Word has length 2867 [2023-11-29 05:06:09,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:09,027 INFO L495 AbstractCegarLoop]: Abstraction has 365632 states and 374700 transitions. [2023-11-29 05:06:09,027 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 770.6666666666666) internal successors, (2312), 3 states have internal predecessors, (2312), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:09,027 INFO L276 IsEmpty]: Start isEmpty. Operand 365632 states and 374700 transitions. [2023-11-29 05:06:09,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2874 [2023-11-29 05:06:09,348 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:09,349 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:09,350 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2023-11-29 05:06:09,350 INFO L420 AbstractCegarLoop]: === Iteration 44 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:06:09,350 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:09,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1599278279, now seen corresponding path program 1 times [2023-11-29 05:06:09,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:09,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2034574170] [2023-11-29 05:06:09,351 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:09,351 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:10,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:13,310 INFO L134 CoverageAnalysis]: Checked inductivity of 2456 backedges. 1205 proven. 0 refuted. 0 times theorem prover too weak. 1251 trivial. 0 not checked. [2023-11-29 05:06:13,310 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:13,310 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2034574170] [2023-11-29 05:06:13,310 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2034574170] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:13,310 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:13,311 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-29 05:06:13,311 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [434477491] [2023-11-29 05:06:13,311 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:13,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:06:13,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:13,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:06:13,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:06:13,317 INFO L87 Difference]: Start difference. First operand 365632 states and 374700 transitions. Second operand has 3 states, 3 states have (on average 737.6666666666666) internal successors, (2213), 2 states have internal predecessors, (2213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:20,245 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:20,246 INFO L93 Difference]: Finished difference Result 787300 states and 807009 transitions. [2023-11-29 05:06:20,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:06:20,247 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 737.6666666666666) internal successors, (2213), 2 states have internal predecessors, (2213), 0 states have call successors, (0), 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 2873 [2023-11-29 05:06:20,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:20,765 INFO L225 Difference]: With dead ends: 787300 [2023-11-29 05:06:20,765 INFO L226 Difference]: Without dead ends: 391050 [2023-11-29 05:06:20,905 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:06:20,906 INFO L413 NwaCegarLoop]: 1249 mSDtfsCounter, 1538 mSDsluCounter, 169 mSDsCounter, 0 mSdLazyCounter, 4239 mSolverCounterSat, 860 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1538 SdHoareTripleChecker+Valid, 1418 SdHoareTripleChecker+Invalid, 5099 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 860 IncrementalHoareTripleChecker+Valid, 4239 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:20,906 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1538 Valid, 1418 Invalid, 5099 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [860 Valid, 4239 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 05:06:21,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 391050 states. [2023-11-29 05:06:24,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 391050 to 360486. [2023-11-29 05:06:24,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360486 states, 360485 states have (on average 1.0209745204377436) internal successors, (368046), 360485 states have internal predecessors, (368046), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:25,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360486 states to 360486 states and 368046 transitions. [2023-11-29 05:06:25,625 INFO L78 Accepts]: Start accepts. Automaton has 360486 states and 368046 transitions. Word has length 2873 [2023-11-29 05:06:25,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:25,626 INFO L495 AbstractCegarLoop]: Abstraction has 360486 states and 368046 transitions. [2023-11-29 05:06:25,626 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 737.6666666666666) internal successors, (2213), 2 states have internal predecessors, (2213), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:25,626 INFO L276 IsEmpty]: Start isEmpty. Operand 360486 states and 368046 transitions. [2023-11-29 05:06:25,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 2991 [2023-11-29 05:06:25,938 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:25,940 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:25,940 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2023-11-29 05:06:25,940 INFO L420 AbstractCegarLoop]: === Iteration 45 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:06:25,940 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:25,941 INFO L85 PathProgramCache]: Analyzing trace with hash -1136821980, now seen corresponding path program 1 times [2023-11-29 05:06:25,941 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:25,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581711768] [2023-11-29 05:06:25,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:25,941 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-29 05:06:26,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-29 05:06:31,324 INFO L134 CoverageAnalysis]: Checked inductivity of 2851 backedges. 1752 proven. 0 refuted. 0 times theorem prover too weak. 1099 trivial. 0 not checked. [2023-11-29 05:06:31,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-29 05:06:31,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581711768] [2023-11-29 05:06:31,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [581711768] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-29 05:06:31,325 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-29 05:06:31,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-11-29 05:06:31,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953382830] [2023-11-29 05:06:31,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-29 05:06:31,327 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-29 05:06:31,327 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-29 05:06:31,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-29 05:06:31,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:06:31,330 INFO L87 Difference]: Start difference. First operand 360486 states and 368046 transitions. Second operand has 3 states, 3 states have (on average 778.3333333333334) internal successors, (2335), 3 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:38,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-11-29 05:06:38,325 INFO L93 Difference]: Finished difference Result 802537 states and 819259 transitions. [2023-11-29 05:06:38,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-29 05:06:38,325 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 778.3333333333334) internal successors, (2335), 3 states have internal predecessors, (2335), 0 states have call successors, (0), 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 2990 [2023-11-29 05:06:38,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-11-29 05:06:38,901 INFO L225 Difference]: With dead ends: 802537 [2023-11-29 05:06:38,901 INFO L226 Difference]: Without dead ends: 442053 [2023-11-29 05:06:38,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-29 05:06:38,990 INFO L413 NwaCegarLoop]: 2995 mSDtfsCounter, 1264 mSDsluCounter, 196 mSDsCounter, 0 mSdLazyCounter, 4740 mSolverCounterSat, 512 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1264 SdHoareTripleChecker+Valid, 3191 SdHoareTripleChecker+Invalid, 5252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 512 IncrementalHoareTripleChecker+Valid, 4740 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2023-11-29 05:06:38,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1264 Valid, 3191 Invalid, 5252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [512 Valid, 4740 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2023-11-29 05:06:39,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442053 states. [2023-11-29 05:06:43,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442053 to 433503. [2023-11-29 05:06:43,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 433503 states, 433502 states have (on average 1.0180714275828024) internal successors, (441336), 433502 states have internal predecessors, (441336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:44,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433503 states to 433503 states and 441336 transitions. [2023-11-29 05:06:44,214 INFO L78 Accepts]: Start accepts. Automaton has 433503 states and 441336 transitions. Word has length 2990 [2023-11-29 05:06:44,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-11-29 05:06:44,215 INFO L495 AbstractCegarLoop]: Abstraction has 433503 states and 441336 transitions. [2023-11-29 05:06:44,216 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 778.3333333333334) internal successors, (2335), 3 states have internal predecessors, (2335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-11-29 05:06:44,216 INFO L276 IsEmpty]: Start isEmpty. Operand 433503 states and 441336 transitions. [2023-11-29 05:06:45,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3230 [2023-11-29 05:06:45,180 INFO L187 NwaCegarLoop]: Found error trace [2023-11-29 05:06:45,182 INFO L195 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-11-29 05:06:45,182 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2023-11-29 05:06:45,182 INFO L420 AbstractCegarLoop]: === Iteration 46 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2023-11-29 05:06:45,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-29 05:06:45,183 INFO L85 PathProgramCache]: Analyzing trace with hash -167209152, now seen corresponding path program 1 times [2023-11-29 05:06:45,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-29 05:06:45,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [207358519] [2023-11-29 05:06:45,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-29 05:06:45,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms