./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash e0f65ddacc19e229149f7733305e27ede1d7c46ea04122324ae4c2ba294bcff0 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 02:25:21,286 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 02:25:21,379 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-28 02:25:21,385 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 02:25:21,385 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 02:25:21,413 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 02:25:21,414 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 02:25:21,414 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 02:25:21,414 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 02:25:21,414 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 02:25:21,415 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 02:25:21,415 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 02:25:21,415 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 02:25:21,415 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 02:25:21,416 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 02:25:21,416 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 02:25:21,416 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 02:25:21,416 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-28 02:25:21,416 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 02:25:21,416 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-28 02:25:21,417 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 02:25:21,417 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 02:25:21,417 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 02:25:21,417 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 02:25:21,417 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-28 02:25:21,417 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 02:25:21,417 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 02:25:21,417 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 02:25:21,417 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 02:25:21,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:25:21,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:25:21,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:25:21,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:25:21,418 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 02:25:21,418 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 02:25:21,418 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 02:25:21,418 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 02:25:21,418 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:25:21,419 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 02:25:21,419 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 02:25:21,419 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 02:25:21,419 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 02:25:21,419 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 02:25:21,419 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 02:25:21,419 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 02:25:21,419 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 02:25:21,420 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 02:25:21,420 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 02:25:21,420 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e0f65ddacc19e229149f7733305e27ede1d7c46ea04122324ae4c2ba294bcff0 [2024-11-28 02:25:21,791 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 02:25:21,801 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 02:25:21,804 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 02:25:21,806 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 02:25:21,806 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 02:25:21,808 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c [2024-11-28 02:25:25,237 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/data/d2d19c503/47810b474a044f809b2e096c1825dc77/FLAGa984b2294 [2024-11-28 02:25:25,816 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 02:25:25,817 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c [2024-11-28 02:25:25,851 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/data/d2d19c503/47810b474a044f809b2e096c1825dc77/FLAGa984b2294 [2024-11-28 02:25:25,878 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/data/d2d19c503/47810b474a044f809b2e096c1825dc77 [2024-11-28 02:25:25,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 02:25:25,886 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 02:25:25,890 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 02:25:25,891 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 02:25:25,900 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 02:25:25,902 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:25:25" (1/1) ... [2024-11-28 02:25:25,904 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41ea2fc1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:25, skipping insertion in model container [2024-11-28 02:25:25,904 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:25:25" (1/1) ... [2024-11-28 02:25:25,979 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 02:25:26,202 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c[1974,1987] [2024-11-28 02:25:26,796 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:25:26,822 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 02:25:26,836 WARN L75 lationResultReporter]: Unsoundness Warning: Ignoring preprocessor pragma C: #pragma merger(0,"/tmp/aaaa/aso.bug2.i","-S") [47] [2024-11-28 02:25:26,849 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/sv-benchmarks/c/seq-mthreaded/rekh_aso.2.M1-2.c[1974,1987] [2024-11-28 02:25:27,183 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 02:25:27,216 INFO L204 MainTranslator]: Completed translation [2024-11-28 02:25:27,217 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27 WrapperNode [2024-11-28 02:25:27,217 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 02:25:27,218 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 02:25:27,218 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 02:25:27,218 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 02:25:27,225 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:27,296 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:27,729 INFO L138 Inliner]: procedures = 61, calls = 3482, calls flagged for inlining = 20, calls inlined = 20, statements flattened = 7605 [2024-11-28 02:25:27,729 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 02:25:27,730 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 02:25:27,730 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 02:25:27,731 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 02:25:27,743 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:27,744 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:27,861 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:28,013 INFO L175 MemorySlicer]: Split 2465 memory accesses to 19 slices as follows [2, 319, 2, 355, 113, 113, 180, 203, 180, 203, 180, 8, 203, 2, 180, 203, 7, 4, 8]. 14 percent of accesses are in the largest equivalence class. The 328 initializations are split as follows [2, 27, 0, 27, 27, 27, 27, 27, 27, 27, 27, 0, 27, 0, 27, 27, 2, 0, 0]. The 337 writes are split as follows [0, 27, 1, 27, 27, 27, 28, 26, 28, 26, 28, 4, 26, 1, 28, 26, 3, 0, 4]. [2024-11-28 02:25:28,013 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:28,013 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:28,365 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:28,389 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:28,437 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:28,476 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:28,535 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:28,657 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 02:25:28,660 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 02:25:28,660 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 02:25:28,660 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 02:25:28,662 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (1/1) ... [2024-11-28 02:25:28,673 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 02:25:28,689 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:25:28,715 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 02:25:28,734 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 02:25:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 02:25:28,761 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_forward [2024-11-28 02:25:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_forward [2024-11-28 02:25:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t2 [2024-11-28 02:25:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t2 [2024-11-28 02:25:28,763 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_nxtway_gs_mode [2024-11-28 02:25:28,763 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_nxtway_gs_mode [2024-11-28 02:25:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 02:25:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t0 [2024-11-28 02:25:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t0 [2024-11-28 02:25:28,764 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_cs_t1 [2024-11-28 02:25:28,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_cs_t1 [2024-11-28 02:25:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_obstacle_flag [2024-11-28 02:25:28,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_obstacle_flag [2024-11-28 02:25:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-28 02:25:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-28 02:25:28,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2024-11-28 02:25:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2024-11-28 02:25:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2024-11-28 02:25:28,766 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2024-11-28 02:25:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#6 [2024-11-28 02:25:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#7 [2024-11-28 02:25:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#8 [2024-11-28 02:25:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#9 [2024-11-28 02:25:28,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#10 [2024-11-28 02:25:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#11 [2024-11-28 02:25:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#12 [2024-11-28 02:25:28,771 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#13 [2024-11-28 02:25:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#14 [2024-11-28 02:25:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#15 [2024-11-28 02:25:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#16 [2024-11-28 02:25:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#17 [2024-11-28 02:25:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#18 [2024-11-28 02:25:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_count [2024-11-28 02:25:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_count [2024-11-28 02:25:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_gyro_sensor [2024-11-28 02:25:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_gyro_sensor [2024-11-28 02:25:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_turn [2024-11-28 02:25:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_turn [2024-11-28 02:25:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-28 02:25:28,772 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts1 [2024-11-28 02:25:28,772 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-28 02:25:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts2 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_entry_pt_OSEK_Task_ts3 [2024-11-28 02:25:28,773 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_entry_pt_OSEK_Task_ts3 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#6 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#7 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#8 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#9 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#10 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#11 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#12 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#13 [2024-11-28 02:25:28,773 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#14 [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#15 [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#16 [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#17 [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#18 [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure assert [2024-11-28 02:25:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assert [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_set_speed [2024-11-28 02:25:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_set_speed [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_write_cmd_forward [2024-11-28 02:25:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_write_cmd_forward [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_obstacle_flag [2024-11-28 02:25:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_obstacle_flag [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 02:25:28,774 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2024-11-28 02:25:28,774 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#6 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#7 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#8 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#9 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#10 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#11 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#12 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#13 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#14 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#15 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#16 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#17 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#18 [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 02:25:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure ecrobot_get_systick_ms [2024-11-28 02:25:28,775 INFO L138 BoogieDeclarations]: Found implementation of procedure ecrobot_get_systick_ms [2024-11-28 02:25:28,775 INFO L130 BoogieDeclarations]: Found specification of procedure nxt_motor_get_count [2024-11-28 02:25:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure nxt_motor_get_count [2024-11-28 02:25:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_nxtway_gs_mode [2024-11-28 02:25:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_nxtway_gs_mode [2024-11-28 02:25:28,776 INFO L130 BoogieDeclarations]: Found specification of procedure __startrek_read_cmd_turn [2024-11-28 02:25:28,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __startrek_read_cmd_turn [2024-11-28 02:25:29,502 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 02:25:29,505 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 02:25:41,596 INFO L? ?]: Removed 415 outVars from TransFormulas that were not future-live. [2024-11-28 02:25:41,597 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 02:25:41,682 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 02:25:41,683 INFO L312 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-28 02:25:41,683 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:25:41 BoogieIcfgContainer [2024-11-28 02:25:41,683 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 02:25:41,694 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 02:25:41,695 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 02:25:41,701 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 02:25:41,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:25:25" (1/3) ... [2024-11-28 02:25:41,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11bfc196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:25:41, skipping insertion in model container [2024-11-28 02:25:41,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:25:27" (2/3) ... [2024-11-28 02:25:41,704 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11bfc196 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:25:41, skipping insertion in model container [2024-11-28 02:25:41,704 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:25:41" (3/3) ... [2024-11-28 02:25:41,706 INFO L128 eAbstractionObserver]: Analyzing ICFG rekh_aso.2.M1-2.c [2024-11-28 02:25:41,727 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 02:25:41,731 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG rekh_aso.2.M1-2.c that has 22 procedures, 2247 locations, 1 initial locations, 1 loop locations, and 1 error locations. [2024-11-28 02:25:41,966 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 02:25:41,986 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6a50bc9a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 02:25:41,987 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 02:25:42,003 INFO L276 IsEmpty]: Start isEmpty. Operand has 2247 states, 1258 states have (on average 1.2209856915739268) internal successors, (1536), 1387 states have internal predecessors, (1536), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (966), 866 states have call predecessors, (966), 966 states have call successors, (966) [2024-11-28 02:25:42,144 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2024-11-28 02:25:42,144 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:42,146 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:25:42,147 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:42,155 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:42,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1966074722, now seen corresponding path program 1 times [2024-11-28 02:25:42,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:42,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293758903] [2024-11-28 02:25:42,167 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:42,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:44,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:45,955 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 416 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2024-11-28 02:25:45,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:45,956 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293758903] [2024-11-28 02:25:45,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293758903] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:25:45,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1324127166] [2024-11-28 02:25:45,959 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:45,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:25:45,960 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:25:45,963 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:25:45,965 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 02:25:48,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:48,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 4551 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 02:25:48,774 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:25:48,937 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 416 proven. 0 refuted. 0 times theorem prover too weak. 86528 trivial. 0 not checked. [2024-11-28 02:25:48,937 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:25:48,937 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1324127166] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:48,937 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:25:48,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 02:25:48,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642369693] [2024-11-28 02:25:48,941 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:48,947 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 02:25:48,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:48,976 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 02:25:48,977 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:25:48,986 INFO L87 Difference]: Start difference. First operand has 2247 states, 1258 states have (on average 1.2209856915739268) internal successors, (1536), 1387 states have internal predecessors, (1536), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (966), 866 states have call predecessors, (966), 966 states have call successors, (966) Second operand has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-28 02:25:49,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:49,365 INFO L93 Difference]: Finished difference Result 4489 states and 7876 transitions. [2024-11-28 02:25:49,365 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 02:25:49,367 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1336 [2024-11-28 02:25:49,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:49,424 INFO L225 Difference]: With dead ends: 4489 [2024-11-28 02:25:49,425 INFO L226 Difference]: Without dead ends: 2242 [2024-11-28 02:25:49,457 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1337 GetRequests, 1337 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 02:25:49,461 INFO L435 NwaCegarLoop]: 3465 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 3465 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:49,462 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 3465 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:49,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2024-11-28 02:25:50,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2242. [2024-11-28 02:25:50,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 1254 states have (on average 1.219298245614035) internal successors, (1529), 1383 states have internal predecessors, (1529), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (965), 865 states have call predecessors, (965), 965 states have call successors, (965) [2024-11-28 02:25:50,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 3460 transitions. [2024-11-28 02:25:50,215 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 3460 transitions. Word has length 1336 [2024-11-28 02:25:50,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:50,216 INFO L471 AbstractCegarLoop]: Abstraction has 2242 states and 3460 transitions. [2024-11-28 02:25:50,216 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 145.5) internal successors, (291), 2 states have internal predecessors, (291), 2 states have call successors, (212), 2 states have call predecessors, (212), 1 states have return successors, (211), 1 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-28 02:25:50,217 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 3460 transitions. [2024-11-28 02:25:50,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1337 [2024-11-28 02:25:50,289 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:50,289 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:25:50,309 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-28 02:25:50,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:25:50,491 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:50,492 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:50,492 INFO L85 PathProgramCache]: Analyzing trace with hash -1962216364, now seen corresponding path program 1 times [2024-11-28 02:25:50,492 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:50,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682748591] [2024-11-28 02:25:50,493 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:50,493 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:52,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:25:53,469 INFO L134 CoverageAnalysis]: Checked inductivity of 86944 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86944 trivial. 0 not checked. [2024-11-28 02:25:53,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:25:53,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682748591] [2024-11-28 02:25:53,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682748591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:25:53,470 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:25:53,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-28 02:25:53,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1353624883] [2024-11-28 02:25:53,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:25:53,476 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 02:25:53,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:25:53,478 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 02:25:53,479 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:25:53,479 INFO L87 Difference]: Start difference. First operand 2242 states and 3460 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-28 02:25:53,710 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:25:53,710 INFO L93 Difference]: Finished difference Result 3911 states and 6078 transitions. [2024-11-28 02:25:53,711 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 02:25:53,712 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) Word has length 1336 [2024-11-28 02:25:53,719 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:25:53,750 INFO L225 Difference]: With dead ends: 3911 [2024-11-28 02:25:53,750 INFO L226 Difference]: Without dead ends: 2242 [2024-11-28 02:25:53,764 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-28 02:25:53,765 INFO L435 NwaCegarLoop]: 3458 mSDtfsCounter, 0 mSDsluCounter, 3448 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 6906 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:25:53,766 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 6906 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 02:25:53,772 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2242 states. [2024-11-28 02:25:54,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2242 to 2242. [2024-11-28 02:25:54,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2242 states, 1254 states have (on average 1.2185007974481659) internal successors, (1528), 1383 states have internal predecessors, (1528), 966 states have call successors, (966), 21 states have call predecessors, (966), 21 states have return successors, (965), 865 states have call predecessors, (965), 965 states have call successors, (965) [2024-11-28 02:25:55,009 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2242 states to 2242 states and 3459 transitions. [2024-11-28 02:25:55,018 INFO L78 Accepts]: Start accepts. Automaton has 2242 states and 3459 transitions. Word has length 1336 [2024-11-28 02:25:55,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:25:55,027 INFO L471 AbstractCegarLoop]: Abstraction has 2242 states and 3459 transitions. [2024-11-28 02:25:55,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 3 states have internal predecessors, (289), 2 states have call successors, (212), 2 states have call predecessors, (212), 2 states have return successors, (211), 2 states have call predecessors, (211), 2 states have call successors, (211) [2024-11-28 02:25:55,030 INFO L276 IsEmpty]: Start isEmpty. Operand 2242 states and 3459 transitions. [2024-11-28 02:25:55,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1345 [2024-11-28 02:25:55,064 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:25:55,066 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2024-11-28 02:25:55,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-28 02:25:55,066 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:25:55,068 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:25:55,068 INFO L85 PathProgramCache]: Analyzing trace with hash -1522688232, now seen corresponding path program 1 times [2024-11-28 02:25:55,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:25:55,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1706465189] [2024-11-28 02:25:55,069 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:25:55,070 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:25:56,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:26:02,378 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-28 02:26:02,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:26:02,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1706465189] [2024-11-28 02:26:02,379 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1706465189] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:26:02,379 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:26:02,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:26:02,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281513934] [2024-11-28 02:26:02,380 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:26:02,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:26:02,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:26:02,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:26:02,384 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:26:02,384 INFO L87 Difference]: Start difference. First operand 2242 states and 3459 transitions. Second operand has 5 states, 4 states have (on average 72.75) internal successors, (291), 5 states have internal predecessors, (291), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2024-11-28 02:26:10,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:26:10,006 INFO L93 Difference]: Finished difference Result 4196 states and 6490 transitions. [2024-11-28 02:26:10,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:26:10,007 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 72.75) internal successors, (291), 5 states have internal predecessors, (291), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) Word has length 1344 [2024-11-28 02:26:10,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:26:10,035 INFO L225 Difference]: With dead ends: 4196 [2024-11-28 02:26:10,036 INFO L226 Difference]: Without dead ends: 2527 [2024-11-28 02:26:10,050 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:26:10,051 INFO L435 NwaCegarLoop]: 3828 mSDtfsCounter, 3840 mSDsluCounter, 2494 mSDsCounter, 0 mSdLazyCounter, 3167 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3840 SdHoareTripleChecker+Valid, 6322 SdHoareTripleChecker+Invalid, 3195 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 3167 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:26:10,052 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3840 Valid, 6322 Invalid, 3195 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [28 Valid, 3167 Invalid, 0 Unknown, 0 Unchecked, 7.2s Time] [2024-11-28 02:26:10,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2527 states. [2024-11-28 02:26:10,664 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2527 to 2525. [2024-11-28 02:26:10,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2525 states, 1462 states have (on average 1.2359781121751026) internal successors, (1807), 1591 states have internal predecessors, (1807), 1032 states have call successors, (1032), 30 states have call predecessors, (1032), 30 states have return successors, (1031), 931 states have call predecessors, (1031), 1031 states have call successors, (1031) [2024-11-28 02:26:10,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2525 states to 2525 states and 3870 transitions. [2024-11-28 02:26:10,692 INFO L78 Accepts]: Start accepts. Automaton has 2525 states and 3870 transitions. Word has length 1344 [2024-11-28 02:26:10,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:26:10,698 INFO L471 AbstractCegarLoop]: Abstraction has 2525 states and 3870 transitions. [2024-11-28 02:26:10,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 72.75) internal successors, (291), 5 states have internal predecessors, (291), 4 states have call successors, (214), 2 states have call predecessors, (214), 2 states have return successors, (213), 3 states have call predecessors, (213), 4 states have call successors, (213) [2024-11-28 02:26:10,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2525 states and 3870 transitions. [2024-11-28 02:26:10,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1349 [2024-11-28 02:26:10,717 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:26:10,718 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2024-11-28 02:26:10,718 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-28 02:26:10,719 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:26:10,720 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:26:10,721 INFO L85 PathProgramCache]: Analyzing trace with hash 632621769, now seen corresponding path program 1 times [2024-11-28 02:26:10,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:26:10,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855891606] [2024-11-28 02:26:10,725 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:26:10,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:26:12,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:26:14,597 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-28 02:26:14,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:26:14,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855891606] [2024-11-28 02:26:14,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855891606] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:26:14,597 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:26:14,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:26:14,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1937041956] [2024-11-28 02:26:14,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:26:14,601 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:26:14,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:26:14,602 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:26:14,603 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:26:14,603 INFO L87 Difference]: Start difference. First operand 2525 states and 3870 transitions. Second operand has 5 states, 4 states have (on average 73.25) internal successors, (293), 5 states have internal predecessors, (293), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2024-11-28 02:26:20,582 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:26:20,582 INFO L93 Difference]: Finished difference Result 4475 states and 6894 transitions. [2024-11-28 02:26:20,583 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:26:20,583 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 73.25) internal successors, (293), 5 states have internal predecessors, (293), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) Word has length 1348 [2024-11-28 02:26:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:26:20,615 INFO L225 Difference]: With dead ends: 4475 [2024-11-28 02:26:20,615 INFO L226 Difference]: Without dead ends: 2523 [2024-11-28 02:26:20,627 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:26:20,629 INFO L435 NwaCegarLoop]: 3821 mSDtfsCounter, 3830 mSDsluCounter, 2489 mSDsCounter, 0 mSdLazyCounter, 3154 mSolverCounterSat, 30 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3830 SdHoareTripleChecker+Valid, 6310 SdHoareTripleChecker+Invalid, 3184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 30 IncrementalHoareTripleChecker+Valid, 3154 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:26:20,631 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3830 Valid, 6310 Invalid, 3184 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [30 Valid, 3154 Invalid, 0 Unknown, 0 Unchecked, 5.7s Time] [2024-11-28 02:26:20,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2523 states. [2024-11-28 02:26:21,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2523 to 2521. [2024-11-28 02:26:21,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2521 states, 1460 states have (on average 1.234931506849315) internal successors, (1803), 1589 states have internal predecessors, (1803), 1030 states have call successors, (1030), 30 states have call predecessors, (1030), 30 states have return successors, (1029), 929 states have call predecessors, (1029), 1029 states have call successors, (1029) [2024-11-28 02:26:21,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2521 states to 2521 states and 3862 transitions. [2024-11-28 02:26:21,199 INFO L78 Accepts]: Start accepts. Automaton has 2521 states and 3862 transitions. Word has length 1348 [2024-11-28 02:26:21,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:26:21,202 INFO L471 AbstractCegarLoop]: Abstraction has 2521 states and 3862 transitions. [2024-11-28 02:26:21,203 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 73.25) internal successors, (293), 5 states have internal predecessors, (293), 4 states have call successors, (215), 2 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 4 states have call successors, (214) [2024-11-28 02:26:21,204 INFO L276 IsEmpty]: Start isEmpty. Operand 2521 states and 3862 transitions. [2024-11-28 02:26:21,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1350 [2024-11-28 02:26:21,238 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:26:21,239 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2024-11-28 02:26:21,239 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-28 02:26:21,240 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:26:21,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:26:21,241 INFO L85 PathProgramCache]: Analyzing trace with hash -285705346, now seen corresponding path program 1 times [2024-11-28 02:26:21,242 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:26:21,242 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367492494] [2024-11-28 02:26:21,242 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:26:21,242 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:26:22,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:26:27,484 INFO L134 CoverageAnalysis]: Checked inductivity of 86947 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-28 02:26:27,484 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:26:27,484 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [367492494] [2024-11-28 02:26:27,484 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [367492494] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:26:27,485 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:26:27,485 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:26:27,485 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [78980594] [2024-11-28 02:26:27,485 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:26:27,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:26:27,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:26:27,488 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:26:27,489 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:26:27,489 INFO L87 Difference]: Start difference. First operand 2521 states and 3862 transitions. Second operand has 6 states, 6 states have (on average 49.0) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2024-11-28 02:26:38,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:26:38,069 INFO L93 Difference]: Finished difference Result 4373 states and 6729 transitions. [2024-11-28 02:26:38,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:26:38,070 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) Word has length 1349 [2024-11-28 02:26:38,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:26:38,129 INFO L225 Difference]: With dead ends: 4373 [2024-11-28 02:26:38,130 INFO L226 Difference]: Without dead ends: 4371 [2024-11-28 02:26:38,135 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:26:38,136 INFO L435 NwaCegarLoop]: 3450 mSDtfsCounter, 5354 mSDsluCounter, 8116 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 2623 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5465 SdHoareTripleChecker+Valid, 11566 SdHoareTripleChecker+Invalid, 3961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2623 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:26:38,137 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5465 Valid, 11566 Invalid, 3961 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2623 Valid, 1338 Invalid, 0 Unknown, 0 Unchecked, 9.9s Time] [2024-11-28 02:26:38,147 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4371 states. [2024-11-28 02:26:39,285 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4371 to 4346. [2024-11-28 02:26:39,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4346 states, 2524 states have (on average 1.2484152139461173) internal successors, (3151), 2777 states have internal predecessors, (3151), 1765 states have call successors, (1765), 55 states have call predecessors, (1765), 56 states have return successors, (1787), 1567 states have call predecessors, (1787), 1763 states have call successors, (1787) [2024-11-28 02:26:39,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4346 states to 4346 states and 6703 transitions. [2024-11-28 02:26:39,340 INFO L78 Accepts]: Start accepts. Automaton has 4346 states and 6703 transitions. Word has length 1349 [2024-11-28 02:26:39,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:26:39,342 INFO L471 AbstractCegarLoop]: Abstraction has 4346 states and 6703 transitions. [2024-11-28 02:26:39,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 49.0) internal successors, (294), 5 states have internal predecessors, (294), 3 states have call successors, (215), 3 states have call predecessors, (215), 2 states have return successors, (214), 3 states have call predecessors, (214), 3 states have call successors, (214) [2024-11-28 02:26:39,343 INFO L276 IsEmpty]: Start isEmpty. Operand 4346 states and 6703 transitions. [2024-11-28 02:26:39,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1355 [2024-11-28 02:26:39,364 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:26:39,365 INFO L218 NwaCegarLoop]: trace histogram [209, 209, 209, 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] [2024-11-28 02:26:39,365 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-28 02:26:39,366 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:26:39,367 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:26:39,368 INFO L85 PathProgramCache]: Analyzing trace with hash 1763733078, now seen corresponding path program 1 times [2024-11-28 02:26:39,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:26:39,368 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [576518967] [2024-11-28 02:26:39,368 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:26:39,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:26:40,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:26:43,922 INFO L134 CoverageAnalysis]: Checked inductivity of 86949 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 86947 trivial. 0 not checked. [2024-11-28 02:26:43,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:26:43,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [576518967] [2024-11-28 02:26:43,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [576518967] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:26:43,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:26:43,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:26:43,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469480246] [2024-11-28 02:26:43,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:26:43,924 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:26:43,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:26:43,926 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:26:43,926 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:26:43,926 INFO L87 Difference]: Start difference. First operand 4346 states and 6703 transitions. Second operand has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 2 states have call successors, (216), 2 states have call predecessors, (216), 1 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) [2024-11-28 02:26:44,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:26:44,509 INFO L93 Difference]: Finished difference Result 5309 states and 8171 transitions. [2024-11-28 02:26:44,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:26:44,510 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 2 states have call successors, (216), 2 states have call predecessors, (216), 1 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) Word has length 1354 [2024-11-28 02:26:44,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:26:44,564 INFO L225 Difference]: With dead ends: 5309 [2024-11-28 02:26:44,565 INFO L226 Difference]: Without dead ends: 5284 [2024-11-28 02:26:44,570 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:26:44,571 INFO L435 NwaCegarLoop]: 3437 mSDtfsCounter, 3404 mSDsluCounter, 7520 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3427 SdHoareTripleChecker+Valid, 10957 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:26:44,572 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3427 Valid, 10957 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-28 02:26:44,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5284 states. [2024-11-28 02:26:46,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5284 to 5283. [2024-11-28 02:26:46,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5283 states, 3123 states have (on average 1.2590457893051552) internal successors, (3932), 3426 states have internal predecessors, (3932), 2087 states have call successors, (2087), 69 states have call predecessors, (2087), 72 states have return successors, (2111), 1840 states have call predecessors, (2111), 2086 states have call successors, (2111) [2024-11-28 02:26:46,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5283 states to 5283 states and 8130 transitions. [2024-11-28 02:26:46,135 INFO L78 Accepts]: Start accepts. Automaton has 5283 states and 8130 transitions. Word has length 1354 [2024-11-28 02:26:46,138 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:26:46,139 INFO L471 AbstractCegarLoop]: Abstraction has 5283 states and 8130 transitions. [2024-11-28 02:26:46,140 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 59.4) internal successors, (297), 4 states have internal predecessors, (297), 2 states have call successors, (216), 2 states have call predecessors, (216), 1 states have return successors, (215), 2 states have call predecessors, (215), 2 states have call successors, (215) [2024-11-28 02:26:46,140 INFO L276 IsEmpty]: Start isEmpty. Operand 5283 states and 8130 transitions. [2024-11-28 02:26:46,193 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1406 [2024-11-28 02:26:46,193 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:26:46,195 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:26:46,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-28 02:26:46,196 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:26:46,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:26:46,197 INFO L85 PathProgramCache]: Analyzing trace with hash -210172295, now seen corresponding path program 1 times [2024-11-28 02:26:46,198 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:26:46,198 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289138926] [2024-11-28 02:26:46,198 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:26:46,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:26:47,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:26:50,757 INFO L134 CoverageAnalysis]: Checked inductivity of 87798 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 87794 trivial. 0 not checked. [2024-11-28 02:26:50,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:26:50,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289138926] [2024-11-28 02:26:50,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289138926] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:26:50,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:26:50,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-28 02:26:50,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1887800264] [2024-11-28 02:26:50,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:26:50,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:26:50,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:26:50,762 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:26:50,762 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-28 02:26:50,763 INFO L87 Difference]: Start difference. First operand 5283 states and 8130 transitions. Second operand has 5 states, 4 states have (on average 81.75) internal successors, (327), 5 states have internal predecessors, (327), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (220), 3 states have call predecessors, (220), 4 states have call successors, (220) [2024-11-28 02:26:56,742 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:26:56,742 INFO L93 Difference]: Finished difference Result 10457 states and 16070 transitions. [2024-11-28 02:26:56,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:26:56,743 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 81.75) internal successors, (327), 5 states have internal predecessors, (327), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (220), 3 states have call predecessors, (220), 4 states have call successors, (220) Word has length 1405 [2024-11-28 02:26:56,744 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:26:56,793 INFO L225 Difference]: With dead ends: 10457 [2024-11-28 02:26:56,793 INFO L226 Difference]: Without dead ends: 5811 [2024-11-28 02:26:56,818 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:26:56,819 INFO L435 NwaCegarLoop]: 3807 mSDtfsCounter, 3818 mSDsluCounter, 2140 mSDsCounter, 0 mSdLazyCounter, 2546 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3818 SdHoareTripleChecker+Valid, 5947 SdHoareTripleChecker+Invalid, 2574 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2546 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.5s IncrementalHoareTripleChecker+Time [2024-11-28 02:26:56,819 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3818 Valid, 5947 Invalid, 2574 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2546 Invalid, 0 Unknown, 0 Unchecked, 5.5s Time] [2024-11-28 02:26:56,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5811 states. [2024-11-28 02:26:58,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5811 to 5809. [2024-11-28 02:26:58,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5809 states, 3511 states have (on average 1.268014810595272) internal successors, (4452), 3814 states have internal predecessors, (4452), 2211 states have call successors, (2211), 83 states have call predecessors, (2211), 86 states have return successors, (2235), 1964 states have call predecessors, (2235), 2210 states have call successors, (2235) [2024-11-28 02:26:58,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5809 states to 5809 states and 8898 transitions. [2024-11-28 02:26:58,056 INFO L78 Accepts]: Start accepts. Automaton has 5809 states and 8898 transitions. Word has length 1405 [2024-11-28 02:26:58,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:26:58,060 INFO L471 AbstractCegarLoop]: Abstraction has 5809 states and 8898 transitions. [2024-11-28 02:26:58,060 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 81.75) internal successors, (327), 5 states have internal predecessors, (327), 4 states have call successors, (221), 2 states have call predecessors, (221), 2 states have return successors, (220), 3 states have call predecessors, (220), 4 states have call successors, (220) [2024-11-28 02:26:58,060 INFO L276 IsEmpty]: Start isEmpty. Operand 5809 states and 8898 transitions. [2024-11-28 02:26:58,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1410 [2024-11-28 02:26:58,091 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:26:58,092 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:26:58,092 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-28 02:26:58,092 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:26:58,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:26:58,093 INFO L85 PathProgramCache]: Analyzing trace with hash -483078197, now seen corresponding path program 1 times [2024-11-28 02:26:58,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:26:58,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [448420362] [2024-11-28 02:26:58,094 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:26:58,094 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:26:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:27:01,567 INFO L134 CoverageAnalysis]: Checked inductivity of 87798 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 87788 trivial. 0 not checked. [2024-11-28 02:27:01,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:27:01,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [448420362] [2024-11-28 02:27:01,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [448420362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:27:01,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:27:01,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:27:01,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1069049042] [2024-11-28 02:27:01,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:27:01,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:27:01,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:27:01,572 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:27:01,573 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:27:01,573 INFO L87 Difference]: Start difference. First operand 5809 states and 8898 transitions. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-28 02:27:09,060 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:27:09,060 INFO L93 Difference]: Finished difference Result 10965 states and 16815 transitions. [2024-11-28 02:27:09,061 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:27:09,061 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1409 [2024-11-28 02:27:09,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:27:09,116 INFO L225 Difference]: With dead ends: 10965 [2024-11-28 02:27:09,116 INFO L226 Difference]: Without dead ends: 5793 [2024-11-28 02:27:09,143 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:27:09,144 INFO L435 NwaCegarLoop]: 3834 mSDtfsCounter, 4673 mSDsluCounter, 2544 mSDsCounter, 0 mSdLazyCounter, 3075 mSolverCounterSat, 898 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4673 SdHoareTripleChecker+Valid, 6378 SdHoareTripleChecker+Invalid, 3973 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 898 IncrementalHoareTripleChecker+Valid, 3075 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:27:09,144 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4673 Valid, 6378 Invalid, 3973 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [898 Valid, 3075 Invalid, 0 Unknown, 0 Unchecked, 6.9s Time] [2024-11-28 02:27:09,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5793 states. [2024-11-28 02:27:10,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5793 to 5793. [2024-11-28 02:27:10,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5793 states, 3501 states have (on average 1.2664952870608397) internal successors, (4434), 3804 states have internal predecessors, (4434), 2205 states have call successors, (2205), 83 states have call predecessors, (2205), 86 states have return successors, (2229), 1958 states have call predecessors, (2229), 2204 states have call successors, (2229) [2024-11-28 02:27:10,280 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5793 states to 5793 states and 8868 transitions. [2024-11-28 02:27:10,290 INFO L78 Accepts]: Start accepts. Automaton has 5793 states and 8868 transitions. Word has length 1409 [2024-11-28 02:27:10,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:27:10,292 INFO L471 AbstractCegarLoop]: Abstraction has 5793 states and 8868 transitions. [2024-11-28 02:27:10,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-28 02:27:10,292 INFO L276 IsEmpty]: Start isEmpty. Operand 5793 states and 8868 transitions. [2024-11-28 02:27:10,315 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1411 [2024-11-28 02:27:10,315 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:27:10,316 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:27:10,316 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-28 02:27:10,316 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:27:10,317 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:27:10,317 INFO L85 PathProgramCache]: Analyzing trace with hash 590935363, now seen corresponding path program 1 times [2024-11-28 02:27:10,318 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:27:10,318 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937347340] [2024-11-28 02:27:10,318 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:27:10,318 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:27:11,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:27:12,788 INFO L134 CoverageAnalysis]: Checked inductivity of 87798 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 87789 trivial. 0 not checked. [2024-11-28 02:27:12,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:27:12,789 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937347340] [2024-11-28 02:27:12,789 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937347340] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:27:12,789 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:27:12,789 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:27:12,789 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647381832] [2024-11-28 02:27:12,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:27:12,790 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:27:12,790 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:27:12,792 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:27:12,792 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:27:12,792 INFO L87 Difference]: Start difference. First operand 5793 states and 8868 transitions. Second operand has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-28 02:27:19,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:27:19,171 INFO L93 Difference]: Finished difference Result 10945 states and 16764 transitions. [2024-11-28 02:27:19,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:27:19,171 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) Word has length 1410 [2024-11-28 02:27:19,173 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:27:19,219 INFO L225 Difference]: With dead ends: 10945 [2024-11-28 02:27:19,219 INFO L226 Difference]: Without dead ends: 5789 [2024-11-28 02:27:19,244 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:27:19,244 INFO L435 NwaCegarLoop]: 3793 mSDtfsCounter, 5541 mSDsluCounter, 1716 mSDsCounter, 0 mSdLazyCounter, 2153 mSolverCounterSat, 2102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5541 SdHoareTripleChecker+Valid, 5509 SdHoareTripleChecker+Invalid, 4255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2102 IncrementalHoareTripleChecker+Valid, 2153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2024-11-28 02:27:19,245 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [5541 Valid, 5509 Invalid, 4255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2102 Valid, 2153 Invalid, 0 Unknown, 0 Unchecked, 5.8s Time] [2024-11-28 02:27:19,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5789 states. [2024-11-28 02:27:20,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5789 to 5787. [2024-11-28 02:27:20,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5787 states, 3497 states have (on average 1.2656562768086932) internal successors, (4426), 3800 states have internal predecessors, (4426), 2203 states have call successors, (2203), 83 states have call predecessors, (2203), 86 states have return successors, (2227), 1956 states have call predecessors, (2227), 2202 states have call successors, (2227) [2024-11-28 02:27:20,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5787 states to 5787 states and 8856 transitions. [2024-11-28 02:27:20,418 INFO L78 Accepts]: Start accepts. Automaton has 5787 states and 8856 transitions. Word has length 1410 [2024-11-28 02:27:20,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:27:20,421 INFO L471 AbstractCegarLoop]: Abstraction has 5787 states and 8856 transitions. [2024-11-28 02:27:20,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 55.666666666666664) internal successors, (334), 6 states have internal predecessors, (334), 3 states have call successors, (222), 2 states have call predecessors, (222), 4 states have return successors, (221), 3 states have call predecessors, (221), 3 states have call successors, (221) [2024-11-28 02:27:20,421 INFO L276 IsEmpty]: Start isEmpty. Operand 5787 states and 8856 transitions. [2024-11-28 02:27:20,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1415 [2024-11-28 02:27:20,443 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:27:20,443 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:27:20,444 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-28 02:27:20,444 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:27:20,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:27:20,445 INFO L85 PathProgramCache]: Analyzing trace with hash -2049079822, now seen corresponding path program 1 times [2024-11-28 02:27:20,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:27:20,445 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781240048] [2024-11-28 02:27:20,445 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:27:20,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:27:21,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:27:22,412 INFO L134 CoverageAnalysis]: Checked inductivity of 87796 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 87788 trivial. 0 not checked. [2024-11-28 02:27:22,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:27:22,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781240048] [2024-11-28 02:27:22,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1781240048] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:27:22,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:27:22,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:27:22,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118570477] [2024-11-28 02:27:22,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:27:22,415 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:27:22,415 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:27:22,416 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:27:22,417 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:27:22,417 INFO L87 Difference]: Start difference. First operand 5787 states and 8856 transitions. Second operand has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (222), 4 states have call predecessors, (222), 4 states have call successors, (222) [2024-11-28 02:27:30,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:27:30,275 INFO L93 Difference]: Finished difference Result 10933 states and 16743 transitions. [2024-11-28 02:27:30,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:27:30,276 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (222), 4 states have call predecessors, (222), 4 states have call successors, (222) Word has length 1414 [2024-11-28 02:27:30,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:27:30,328 INFO L225 Difference]: With dead ends: 10933 [2024-11-28 02:27:30,328 INFO L226 Difference]: Without dead ends: 5783 [2024-11-28 02:27:30,352 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:27:30,352 INFO L435 NwaCegarLoop]: 3830 mSDtfsCounter, 3835 mSDsluCounter, 3475 mSDsCounter, 0 mSdLazyCounter, 4319 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3835 SdHoareTripleChecker+Valid, 7305 SdHoareTripleChecker+Invalid, 4348 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4319 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:27:30,353 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3835 Valid, 7305 Invalid, 4348 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 4319 Invalid, 0 Unknown, 0 Unchecked, 7.3s Time] [2024-11-28 02:27:30,360 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5783 states. [2024-11-28 02:27:31,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5783 to 5783. [2024-11-28 02:27:31,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5783 states, 3495 states have (on average 1.265236051502146) internal successors, (4422), 3798 states have internal predecessors, (4422), 2201 states have call successors, (2201), 83 states have call predecessors, (2201), 86 states have return successors, (2225), 1954 states have call predecessors, (2225), 2200 states have call successors, (2225) [2024-11-28 02:27:31,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5783 states to 5783 states and 8848 transitions. [2024-11-28 02:27:31,736 INFO L78 Accepts]: Start accepts. Automaton has 5783 states and 8848 transitions. Word has length 1414 [2024-11-28 02:27:31,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:27:31,738 INFO L471 AbstractCegarLoop]: Abstraction has 5783 states and 8848 transitions. [2024-11-28 02:27:31,739 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.166666666666664) internal successors, (337), 6 states have internal predecessors, (337), 4 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (222), 4 states have call predecessors, (222), 4 states have call successors, (222) [2024-11-28 02:27:31,739 INFO L276 IsEmpty]: Start isEmpty. Operand 5783 states and 8848 transitions. [2024-11-28 02:27:31,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1416 [2024-11-28 02:27:31,764 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:27:31,765 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:27:31,765 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-28 02:27:31,766 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:27:31,766 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:27:31,767 INFO L85 PathProgramCache]: Analyzing trace with hash -460570941, now seen corresponding path program 1 times [2024-11-28 02:27:31,767 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:27:31,767 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [851203431] [2024-11-28 02:27:31,768 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:27:31,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:27:32,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:27:35,201 INFO L134 CoverageAnalysis]: Checked inductivity of 87801 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 87795 trivial. 0 not checked. [2024-11-28 02:27:35,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:27:35,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [851203431] [2024-11-28 02:27:35,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [851203431] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:27:35,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [467621334] [2024-11-28 02:27:35,202 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:27:35,202 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:27:35,202 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:27:35,204 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:27:35,206 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 02:27:37,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:27:37,713 INFO L256 TraceCheckSpWp]: Trace formula consists of 4755 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:27:37,753 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:27:38,421 INFO L134 CoverageAnalysis]: Checked inductivity of 87801 backedges. 846 proven. 0 refuted. 0 times theorem prover too weak. 86955 trivial. 0 not checked. [2024-11-28 02:27:38,421 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:27:38,422 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [467621334] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:27:38,422 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:27:38,422 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2024-11-28 02:27:38,422 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1167943571] [2024-11-28 02:27:38,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:27:38,424 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:27:38,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:27:38,427 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:27:38,427 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-11-28 02:27:38,427 INFO L87 Difference]: Start difference. First operand 5783 states and 8848 transitions. Second operand has 8 states, 8 states have (on average 42.25) internal successors, (338), 7 states have internal predecessors, (338), 3 states have call successors, (223), 4 states have call predecessors, (223), 3 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) [2024-11-28 02:27:50,423 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:27:50,423 INFO L93 Difference]: Finished difference Result 7828 states and 12019 transitions. [2024-11-28 02:27:50,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 02:27:50,424 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 42.25) internal successors, (338), 7 states have internal predecessors, (338), 3 states have call successors, (223), 4 states have call predecessors, (223), 3 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) Word has length 1415 [2024-11-28 02:27:50,426 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:27:50,491 INFO L225 Difference]: With dead ends: 7828 [2024-11-28 02:27:50,492 INFO L226 Difference]: Without dead ends: 7826 [2024-11-28 02:27:50,501 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1425 GetRequests, 1412 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=44, Invalid=166, Unknown=0, NotChecked=0, Total=210 [2024-11-28 02:27:50,502 INFO L435 NwaCegarLoop]: 3831 mSDtfsCounter, 3926 mSDsluCounter, 14118 mSDsCounter, 0 mSdLazyCounter, 6062 mSolverCounterSat, 240 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3928 SdHoareTripleChecker+Valid, 17949 SdHoareTripleChecker+Invalid, 6302 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 240 IncrementalHoareTripleChecker+Valid, 6062 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.1s IncrementalHoareTripleChecker+Time [2024-11-28 02:27:50,503 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3928 Valid, 17949 Invalid, 6302 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [240 Valid, 6062 Invalid, 0 Unknown, 0 Unchecked, 11.1s Time] [2024-11-28 02:27:50,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7826 states. [2024-11-28 02:27:52,148 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7826 to 7819. [2024-11-28 02:27:52,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7819 states, 4662 states have (on average 1.2589017589017588) internal successors, (5869), 5101 states have internal predecessors, (5869), 3038 states have call successors, (3038), 114 states have call predecessors, (3038), 118 states have return successors, (3104), 2701 states have call predecessors, (3104), 3036 states have call successors, (3104) [2024-11-28 02:27:52,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7819 states to 7819 states and 12011 transitions. [2024-11-28 02:27:52,221 INFO L78 Accepts]: Start accepts. Automaton has 7819 states and 12011 transitions. Word has length 1415 [2024-11-28 02:27:52,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:27:52,224 INFO L471 AbstractCegarLoop]: Abstraction has 7819 states and 12011 transitions. [2024-11-28 02:27:52,224 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 42.25) internal successors, (338), 7 states have internal predecessors, (338), 3 states have call successors, (223), 4 states have call predecessors, (223), 3 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) [2024-11-28 02:27:52,224 INFO L276 IsEmpty]: Start isEmpty. Operand 7819 states and 12011 transitions. [2024-11-28 02:27:52,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1419 [2024-11-28 02:27:52,251 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:27:52,252 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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] [2024-11-28 02:27:52,278 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-28 02:27:52,453 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-28 02:27:52,453 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:27:52,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:27:52,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1923570640, now seen corresponding path program 1 times [2024-11-28 02:27:52,455 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:27:52,455 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1161821075] [2024-11-28 02:27:52,456 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:27:52,456 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:27:53,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:27:57,121 INFO L134 CoverageAnalysis]: Checked inductivity of 87793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87793 trivial. 0 not checked. [2024-11-28 02:27:57,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:27:57,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1161821075] [2024-11-28 02:27:57,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1161821075] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:27:57,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:27:57,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:27:57,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524329015] [2024-11-28 02:27:57,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:27:57,125 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:27:57,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:27:57,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:27:57,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:27:57,127 INFO L87 Difference]: Start difference. First operand 7819 states and 12011 transitions. Second operand has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 3 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) [2024-11-28 02:28:05,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:05,922 INFO L93 Difference]: Finished difference Result 15067 states and 23268 transitions. [2024-11-28 02:28:05,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:28:05,923 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 3 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) Word has length 1418 [2024-11-28 02:28:05,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:05,984 INFO L225 Difference]: With dead ends: 15067 [2024-11-28 02:28:05,984 INFO L226 Difference]: Without dead ends: 7821 [2024-11-28 02:28:06,030 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:28:06,031 INFO L435 NwaCegarLoop]: 3803 mSDtfsCounter, 3803 mSDsluCounter, 3442 mSDsCounter, 0 mSdLazyCounter, 4286 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3803 SdHoareTripleChecker+Valid, 7245 SdHoareTripleChecker+Invalid, 4315 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4286 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:06,032 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3803 Valid, 7245 Invalid, 4315 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [29 Valid, 4286 Invalid, 0 Unknown, 0 Unchecked, 7.7s Time] [2024-11-28 02:28:06,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7821 states. [2024-11-28 02:28:07,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7821 to 7819. [2024-11-28 02:28:07,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7819 states, 4662 states have (on average 1.2584727584727584) internal successors, (5867), 5101 states have internal predecessors, (5867), 3038 states have call successors, (3038), 114 states have call predecessors, (3038), 118 states have return successors, (3104), 2701 states have call predecessors, (3104), 3036 states have call successors, (3104) [2024-11-28 02:28:07,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7819 states to 7819 states and 12009 transitions. [2024-11-28 02:28:07,751 INFO L78 Accepts]: Start accepts. Automaton has 7819 states and 12009 transitions. Word has length 1418 [2024-11-28 02:28:07,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:07,754 INFO L471 AbstractCegarLoop]: Abstraction has 7819 states and 12009 transitions. [2024-11-28 02:28:07,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 3 states have call successors, (223), 2 states have call predecessors, (223), 4 states have return successors, (222), 3 states have call predecessors, (222), 3 states have call successors, (222) [2024-11-28 02:28:07,754 INFO L276 IsEmpty]: Start isEmpty. Operand 7819 states and 12009 transitions. [2024-11-28 02:28:07,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1421 [2024-11-28 02:28:07,782 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:07,782 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 02:28:07,783 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-28 02:28:07,783 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:28:07,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:07,784 INFO L85 PathProgramCache]: Analyzing trace with hash 889093937, now seen corresponding path program 1 times [2024-11-28 02:28:07,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:28:07,784 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141890351] [2024-11-28 02:28:07,785 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:07,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:28:08,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:11,694 INFO L134 CoverageAnalysis]: Checked inductivity of 87811 backedges. 6 proven. 2 refuted. 0 times theorem prover too weak. 87803 trivial. 0 not checked. [2024-11-28 02:28:11,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:28:11,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141890351] [2024-11-28 02:28:11,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141890351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:28:11,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1259852435] [2024-11-28 02:28:11,695 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:11,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:11,695 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:11,697 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:11,699 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 02:28:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:13,842 INFO L256 TraceCheckSpWp]: Trace formula consists of 4764 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-28 02:28:13,874 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:14,421 INFO L134 CoverageAnalysis]: Checked inductivity of 87811 backedges. 854 proven. 2 refuted. 0 times theorem prover too weak. 86955 trivial. 0 not checked. [2024-11-28 02:28:14,422 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 02:28:16,442 INFO L134 CoverageAnalysis]: Checked inductivity of 87811 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 87805 trivial. 0 not checked. [2024-11-28 02:28:16,442 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1259852435] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 02:28:16,442 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 02:28:16,443 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [7, 8] total 19 [2024-11-28 02:28:16,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1742182830] [2024-11-28 02:28:16,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:16,445 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 02:28:16,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:28:16,446 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 02:28:16,446 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=276, Unknown=0, NotChecked=0, Total=342 [2024-11-28 02:28:16,447 INFO L87 Difference]: Start difference. First operand 7819 states and 12009 transitions. Second operand has 8 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 4 states have call successors, (224), 2 states have call predecessors, (224), 2 states have return successors, (223), 3 states have call predecessors, (223), 4 states have call successors, (223) [2024-11-28 02:28:20,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:20,181 INFO L93 Difference]: Finished difference Result 11567 states and 17715 transitions. [2024-11-28 02:28:20,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:28:20,182 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 4 states have call successors, (224), 2 states have call predecessors, (224), 2 states have return successors, (223), 3 states have call predecessors, (223), 4 states have call successors, (223) Word has length 1420 [2024-11-28 02:28:20,183 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:20,254 INFO L225 Difference]: With dead ends: 11567 [2024-11-28 02:28:20,254 INFO L226 Difference]: Without dead ends: 11565 [2024-11-28 02:28:20,264 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 2849 GetRequests, 2830 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=82, Invalid=338, Unknown=0, NotChecked=0, Total=420 [2024-11-28 02:28:20,265 INFO L435 NwaCegarLoop]: 4056 mSDtfsCounter, 4548 mSDsluCounter, 11622 mSDsCounter, 0 mSdLazyCounter, 1876 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4550 SdHoareTripleChecker+Valid, 15678 SdHoareTripleChecker+Invalid, 1892 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 1876 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:20,265 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4550 Valid, 15678 Invalid, 1892 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 1876 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-28 02:28:20,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11565 states. [2024-11-28 02:28:22,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11565 to 11561. [2024-11-28 02:28:22,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11561 states, 6956 states have (on average 1.2619321449108682) internal successors, (8778), 7599 states have internal predecessors, (8778), 4414 states have call successors, (4414), 182 states have call predecessors, (4414), 190 states have return successors, (4517), 3927 states have call predecessors, (4517), 4412 states have call successors, (4517) [2024-11-28 02:28:22,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11561 states to 11561 states and 17709 transitions. [2024-11-28 02:28:22,118 INFO L78 Accepts]: Start accepts. Automaton has 11561 states and 17709 transitions. Word has length 1420 [2024-11-28 02:28:22,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:22,120 INFO L471 AbstractCegarLoop]: Abstraction has 11561 states and 17709 transitions. [2024-11-28 02:28:22,120 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 47.285714285714285) internal successors, (331), 7 states have internal predecessors, (331), 4 states have call successors, (224), 2 states have call predecessors, (224), 2 states have return successors, (223), 3 states have call predecessors, (223), 4 states have call successors, (223) [2024-11-28 02:28:22,120 INFO L276 IsEmpty]: Start isEmpty. Operand 11561 states and 17709 transitions. [2024-11-28 02:28:22,142 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1423 [2024-11-28 02:28:22,142 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:22,143 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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] [2024-11-28 02:28:22,166 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-28 02:28:22,344 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:22,344 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:28:22,344 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:22,345 INFO L85 PathProgramCache]: Analyzing trace with hash 886939555, now seen corresponding path program 1 times [2024-11-28 02:28:22,345 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:28:22,345 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030778272] [2024-11-28 02:28:22,345 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:22,345 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:28:23,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:24,238 INFO L134 CoverageAnalysis]: Checked inductivity of 87793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87793 trivial. 0 not checked. [2024-11-28 02:28:24,239 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:28:24,239 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030778272] [2024-11-28 02:28:24,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030778272] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:24,239 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:24,239 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:28:24,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245034726] [2024-11-28 02:28:24,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:24,241 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:28:24,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:28:24,242 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:28:24,242 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:28:24,243 INFO L87 Difference]: Start difference. First operand 11561 states and 17709 transitions. Second operand has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 4 states have call successors, (224), 2 states have call predecessors, (224), 4 states have return successors, (223), 4 states have call predecessors, (223), 4 states have call successors, (223) [2024-11-28 02:28:31,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:31,500 INFO L93 Difference]: Finished difference Result 22541 states and 34711 transitions. [2024-11-28 02:28:31,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:28:31,501 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 4 states have call successors, (224), 2 states have call predecessors, (224), 4 states have return successors, (223), 4 states have call predecessors, (223), 4 states have call successors, (223) Word has length 1422 [2024-11-28 02:28:31,502 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:31,567 INFO L225 Difference]: With dead ends: 22541 [2024-11-28 02:28:31,567 INFO L226 Difference]: Without dead ends: 11553 [2024-11-28 02:28:31,618 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:28:31,619 INFO L435 NwaCegarLoop]: 3824 mSDtfsCounter, 3825 mSDsluCounter, 3466 mSDsCounter, 0 mSdLazyCounter, 4318 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3825 SdHoareTripleChecker+Valid, 7290 SdHoareTripleChecker+Invalid, 4347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 4318 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:31,619 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3825 Valid, 7290 Invalid, 4347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 4318 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-28 02:28:31,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11553 states. [2024-11-28 02:28:33,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11553 to 11553. [2024-11-28 02:28:33,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11553 states, 6952 states have (on average 1.2615074798619101) internal successors, (8770), 7595 states have internal predecessors, (8770), 4410 states have call successors, (4410), 182 states have call predecessors, (4410), 190 states have return successors, (4513), 3923 states have call predecessors, (4513), 4408 states have call successors, (4513) [2024-11-28 02:28:33,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11553 states to 11553 states and 17693 transitions. [2024-11-28 02:28:33,469 INFO L78 Accepts]: Start accepts. Automaton has 11553 states and 17693 transitions. Word has length 1422 [2024-11-28 02:28:33,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:33,470 INFO L471 AbstractCegarLoop]: Abstraction has 11553 states and 17693 transitions. [2024-11-28 02:28:33,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 4 states have call successors, (224), 2 states have call predecessors, (224), 4 states have return successors, (223), 4 states have call predecessors, (223), 4 states have call successors, (223) [2024-11-28 02:28:33,470 INFO L276 IsEmpty]: Start isEmpty. Operand 11553 states and 17693 transitions. [2024-11-28 02:28:33,498 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1424 [2024-11-28 02:28:33,498 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:33,499 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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] [2024-11-28 02:28:33,499 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-28 02:28:33,499 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:28:33,500 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:33,501 INFO L85 PathProgramCache]: Analyzing trace with hash 2013766756, now seen corresponding path program 1 times [2024-11-28 02:28:33,501 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:28:33,501 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1237967392] [2024-11-28 02:28:33,501 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:33,501 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:28:34,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:36,600 INFO L134 CoverageAnalysis]: Checked inductivity of 87793 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87793 trivial. 0 not checked. [2024-11-28 02:28:36,601 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:28:36,601 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1237967392] [2024-11-28 02:28:36,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1237967392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:36,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:28:36,602 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:28:36,602 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067815160] [2024-11-28 02:28:36,602 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:36,603 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:28:36,604 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:28:36,605 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:28:36,605 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:28:36,605 INFO L87 Difference]: Start difference. First operand 11553 states and 17693 transitions. Second operand has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 4 states have call successors, (224), 2 states have call predecessors, (224), 4 states have return successors, (223), 4 states have call predecessors, (223), 4 states have call successors, (223) [2024-11-28 02:28:43,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:43,989 INFO L93 Difference]: Finished difference Result 22521 states and 34683 transitions. [2024-11-28 02:28:43,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:28:43,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 4 states have call successors, (224), 2 states have call predecessors, (224), 4 states have return successors, (223), 4 states have call predecessors, (223), 4 states have call successors, (223) Word has length 1423 [2024-11-28 02:28:43,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:44,066 INFO L225 Difference]: With dead ends: 22521 [2024-11-28 02:28:44,066 INFO L226 Difference]: Without dead ends: 11541 [2024-11-28 02:28:44,109 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:28:44,110 INFO L435 NwaCegarLoop]: 3783 mSDtfsCounter, 4200 mSDsluCounter, 2114 mSDsCounter, 0 mSdLazyCounter, 2530 mSolverCounterSat, 397 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4200 SdHoareTripleChecker+Valid, 5897 SdHoareTripleChecker+Invalid, 2927 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 397 IncrementalHoareTripleChecker+Valid, 2530 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:44,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4200 Valid, 5897 Invalid, 2927 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [397 Valid, 2530 Invalid, 0 Unknown, 0 Unchecked, 6.3s Time] [2024-11-28 02:28:44,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11541 states. [2024-11-28 02:28:46,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11541 to 11541. [2024-11-28 02:28:46,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11541 states, 6946 states have (on average 1.2608695652173914) internal successors, (8758), 7589 states have internal predecessors, (8758), 4404 states have call successors, (4404), 182 states have call predecessors, (4404), 190 states have return successors, (4507), 3917 states have call predecessors, (4507), 4402 states have call successors, (4507) [2024-11-28 02:28:46,127 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11541 states to 11541 states and 17669 transitions. [2024-11-28 02:28:46,146 INFO L78 Accepts]: Start accepts. Automaton has 11541 states and 17669 transitions. Word has length 1423 [2024-11-28 02:28:46,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:46,147 INFO L471 AbstractCegarLoop]: Abstraction has 11541 states and 17669 transitions. [2024-11-28 02:28:46,147 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.5) internal successors, (339), 6 states have internal predecessors, (339), 4 states have call successors, (224), 2 states have call predecessors, (224), 4 states have return successors, (223), 4 states have call predecessors, (223), 4 states have call successors, (223) [2024-11-28 02:28:46,147 INFO L276 IsEmpty]: Start isEmpty. Operand 11541 states and 17669 transitions. [2024-11-28 02:28:46,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1424 [2024-11-28 02:28:46,164 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:46,164 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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] [2024-11-28 02:28:46,164 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-28 02:28:46,165 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:28:46,165 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:46,165 INFO L85 PathProgramCache]: Analyzing trace with hash 732917556, now seen corresponding path program 1 times [2024-11-28 02:28:46,165 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:28:46,166 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276172204] [2024-11-28 02:28:46,166 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:46,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:28:47,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:48,868 INFO L134 CoverageAnalysis]: Checked inductivity of 87796 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 87792 trivial. 0 not checked. [2024-11-28 02:28:48,868 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:28:48,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1276172204] [2024-11-28 02:28:48,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1276172204] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:28:48,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1719107028] [2024-11-28 02:28:48,869 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:48,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:28:48,869 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:28:48,871 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:28:48,873 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 02:28:51,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:28:51,687 INFO L256 TraceCheckSpWp]: Trace formula consists of 4892 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:28:51,715 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:28:52,042 INFO L134 CoverageAnalysis]: Checked inductivity of 87796 backedges. 1668 proven. 0 refuted. 0 times theorem prover too weak. 86128 trivial. 0 not checked. [2024-11-28 02:28:52,042 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:28:52,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1719107028] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:28:52,043 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:28:52,043 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-28 02:28:52,043 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156987893] [2024-11-28 02:28:52,044 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:28:52,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:28:52,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:28:52,046 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:28:52,047 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:28:52,047 INFO L87 Difference]: Start difference. First operand 11541 states and 17669 transitions. Second operand has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 3 states have call successors, (224), 3 states have call predecessors, (224), 3 states have return successors, (223), 3 states have call predecessors, (223), 3 states have call successors, (223) [2024-11-28 02:28:57,103 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:28:57,103 INFO L93 Difference]: Finished difference Result 22509 states and 34651 transitions. [2024-11-28 02:28:57,104 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:28:57,104 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 3 states have call successors, (224), 3 states have call predecessors, (224), 3 states have return successors, (223), 3 states have call predecessors, (223), 3 states have call successors, (223) Word has length 1423 [2024-11-28 02:28:57,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:28:57,169 INFO L225 Difference]: With dead ends: 22509 [2024-11-28 02:28:57,169 INFO L226 Difference]: Without dead ends: 11541 [2024-11-28 02:28:57,213 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1429 GetRequests, 1422 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:28:57,214 INFO L435 NwaCegarLoop]: 3425 mSDtfsCounter, 1674 mSDsluCounter, 5269 mSDsCounter, 0 mSdLazyCounter, 2023 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1674 SdHoareTripleChecker+Valid, 8694 SdHoareTripleChecker+Invalid, 2047 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 2023 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2024-11-28 02:28:57,214 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [1674 Valid, 8694 Invalid, 2047 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 2023 Invalid, 0 Unknown, 0 Unchecked, 3.9s Time] [2024-11-28 02:28:57,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11541 states. [2024-11-28 02:28:59,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11541 to 11541. [2024-11-28 02:28:59,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11541 states, 6946 states have (on average 1.2597178232076014) internal successors, (8750), 7589 states have internal predecessors, (8750), 4404 states have call successors, (4404), 182 states have call predecessors, (4404), 190 states have return successors, (4507), 3917 states have call predecessors, (4507), 4402 states have call successors, (4507) [2024-11-28 02:28:59,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11541 states to 11541 states and 17661 transitions. [2024-11-28 02:28:59,089 INFO L78 Accepts]: Start accepts. Automaton has 11541 states and 17661 transitions. Word has length 1423 [2024-11-28 02:28:59,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:28:59,090 INFO L471 AbstractCegarLoop]: Abstraction has 11541 states and 17661 transitions. [2024-11-28 02:28:59,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 3 states have call successors, (224), 3 states have call predecessors, (224), 3 states have return successors, (223), 3 states have call predecessors, (223), 3 states have call successors, (223) [2024-11-28 02:28:59,090 INFO L276 IsEmpty]: Start isEmpty. Operand 11541 states and 17661 transitions. [2024-11-28 02:28:59,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1432 [2024-11-28 02:28:59,114 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:28:59,115 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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] [2024-11-28 02:28:59,142 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 02:28:59,315 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 02:28:59,316 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:28:59,316 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:28:59,316 INFO L85 PathProgramCache]: Analyzing trace with hash -404885516, now seen corresponding path program 1 times [2024-11-28 02:28:59,317 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:28:59,317 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044850267] [2024-11-28 02:28:59,317 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:28:59,317 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:29:00,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:02,255 INFO L134 CoverageAnalysis]: Checked inductivity of 87800 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 87794 trivial. 0 not checked. [2024-11-28 02:29:02,255 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:29:02,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044850267] [2024-11-28 02:29:02,255 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044850267] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:29:02,255 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1109913451] [2024-11-28 02:29:02,255 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:02,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:29:02,256 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:29:02,262 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:29:02,270 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 02:29:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:05,372 INFO L256 TraceCheckSpWp]: Trace formula consists of 4916 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-28 02:29:05,391 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:29:05,686 INFO L134 CoverageAnalysis]: Checked inductivity of 87800 backedges. 1666 proven. 0 refuted. 0 times theorem prover too weak. 86134 trivial. 0 not checked. [2024-11-28 02:29:05,686 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:29:05,686 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1109913451] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:29:05,686 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:29:05,686 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 8 [2024-11-28 02:29:05,687 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1544718254] [2024-11-28 02:29:05,687 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:29:05,688 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:29:05,688 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:29:05,690 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:29:05,690 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:29:05,691 INFO L87 Difference]: Start difference. First operand 11541 states and 17661 transitions. Second operand has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 3 states have call successors, (225), 3 states have call predecessors, (225), 3 states have return successors, (224), 3 states have call predecessors, (224), 3 states have call successors, (224) [2024-11-28 02:29:11,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:11,714 INFO L93 Difference]: Finished difference Result 22493 states and 34611 transitions. [2024-11-28 02:29:11,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:29:11,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 3 states have call successors, (225), 3 states have call predecessors, (225), 3 states have return successors, (224), 3 states have call predecessors, (224), 3 states have call successors, (224) Word has length 1431 [2024-11-28 02:29:11,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:11,779 INFO L225 Difference]: With dead ends: 22493 [2024-11-28 02:29:11,779 INFO L226 Difference]: Without dead ends: 11525 [2024-11-28 02:29:11,819 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1437 GetRequests, 1430 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-28 02:29:11,820 INFO L435 NwaCegarLoop]: 3454 mSDtfsCounter, 2111 mSDsluCounter, 6112 mSDsCounter, 0 mSdLazyCounter, 2566 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2111 SdHoareTripleChecker+Valid, 9566 SdHoareTripleChecker+Invalid, 2592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 2566 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.0s IncrementalHoareTripleChecker+Time [2024-11-28 02:29:11,820 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2111 Valid, 9566 Invalid, 2592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 2566 Invalid, 0 Unknown, 0 Unchecked, 5.0s Time] [2024-11-28 02:29:11,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11525 states. [2024-11-28 02:29:13,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11525 to 11525. [2024-11-28 02:29:13,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11525 states, 6938 states have (on average 1.2588642260017295) internal successors, (8734), 7581 states have internal predecessors, (8734), 4396 states have call successors, (4396), 182 states have call predecessors, (4396), 190 states have return successors, (4499), 3909 states have call predecessors, (4499), 4394 states have call successors, (4499) [2024-11-28 02:29:13,552 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11525 states to 11525 states and 17629 transitions. [2024-11-28 02:29:13,578 INFO L78 Accepts]: Start accepts. Automaton has 11525 states and 17629 transitions. Word has length 1431 [2024-11-28 02:29:13,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:13,579 INFO L471 AbstractCegarLoop]: Abstraction has 11525 states and 17629 transitions. [2024-11-28 02:29:13,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 68.8) internal successors, (344), 5 states have internal predecessors, (344), 3 states have call successors, (225), 3 states have call predecessors, (225), 3 states have return successors, (224), 3 states have call predecessors, (224), 3 states have call successors, (224) [2024-11-28 02:29:13,579 INFO L276 IsEmpty]: Start isEmpty. Operand 11525 states and 17629 transitions. [2024-11-28 02:29:13,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1434 [2024-11-28 02:29:13,595 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:13,595 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 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] [2024-11-28 02:29:13,613 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 02:29:13,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:29:13,796 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:29:13,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:13,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1995537916, now seen corresponding path program 1 times [2024-11-28 02:29:13,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:29:13,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [680779295] [2024-11-28 02:29:13,798 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:13,798 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:29:14,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:16,501 INFO L134 CoverageAnalysis]: Checked inductivity of 87801 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 87795 trivial. 0 not checked. [2024-11-28 02:29:16,502 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:29:16,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [680779295] [2024-11-28 02:29:16,502 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [680779295] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:29:16,502 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1665287134] [2024-11-28 02:29:16,502 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:16,502 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:29:16,502 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:29:16,504 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:29:16,507 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 02:29:19,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:19,464 INFO L256 TraceCheckSpWp]: Trace formula consists of 4920 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-28 02:29:19,481 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:29:19,757 INFO L134 CoverageAnalysis]: Checked inductivity of 87801 backedges. 1667 proven. 0 refuted. 0 times theorem prover too weak. 86134 trivial. 0 not checked. [2024-11-28 02:29:19,758 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 02:29:19,758 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1665287134] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:29:19,758 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 02:29:19,759 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6] total 7 [2024-11-28 02:29:19,759 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246105208] [2024-11-28 02:29:19,759 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:29:19,761 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-28 02:29:19,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:29:19,763 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-28 02:29:19,763 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:29:19,763 INFO L87 Difference]: Start difference. First operand 11525 states and 17629 transitions. Second operand has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 3 states have call successors, (225), 3 states have call predecessors, (225), 3 states have return successors, (224), 3 states have call predecessors, (224), 3 states have call successors, (224) [2024-11-28 02:29:25,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:25,398 INFO L93 Difference]: Finished difference Result 22449 states and 34541 transitions. [2024-11-28 02:29:25,399 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:29:25,399 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 3 states have call successors, (225), 3 states have call predecessors, (225), 3 states have return successors, (224), 3 states have call predecessors, (224), 3 states have call successors, (224) Word has length 1433 [2024-11-28 02:29:25,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:25,464 INFO L225 Difference]: With dead ends: 22449 [2024-11-28 02:29:25,464 INFO L226 Difference]: Without dead ends: 11497 [2024-11-28 02:29:25,508 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 1438 GetRequests, 1433 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:29:25,508 INFO L435 NwaCegarLoop]: 3410 mSDtfsCounter, 2975 mSDsluCounter, 3246 mSDsCounter, 0 mSdLazyCounter, 1790 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2975 SdHoareTripleChecker+Valid, 6656 SdHoareTripleChecker+Invalid, 1816 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 1790 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.7s IncrementalHoareTripleChecker+Time [2024-11-28 02:29:25,509 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [2975 Valid, 6656 Invalid, 1816 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 1790 Invalid, 0 Unknown, 0 Unchecked, 4.7s Time] [2024-11-28 02:29:25,518 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11497 states. [2024-11-28 02:29:26,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11497 to 11497. [2024-11-28 02:29:26,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11497 states, 6924 states have (on average 1.25736568457539) internal successors, (8706), 7567 states have internal predecessors, (8706), 4382 states have call successors, (4382), 182 states have call predecessors, (4382), 190 states have return successors, (4485), 3895 states have call predecessors, (4485), 4380 states have call successors, (4485) [2024-11-28 02:29:27,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11497 states to 11497 states and 17573 transitions. [2024-11-28 02:29:27,225 INFO L78 Accepts]: Start accepts. Automaton has 11497 states and 17573 transitions. Word has length 1433 [2024-11-28 02:29:27,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:27,226 INFO L471 AbstractCegarLoop]: Abstraction has 11497 states and 17573 transitions. [2024-11-28 02:29:27,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 69.2) internal successors, (346), 5 states have internal predecessors, (346), 3 states have call successors, (225), 3 states have call predecessors, (225), 3 states have return successors, (224), 3 states have call predecessors, (224), 3 states have call successors, (224) [2024-11-28 02:29:27,227 INFO L276 IsEmpty]: Start isEmpty. Operand 11497 states and 17573 transitions. [2024-11-28 02:29:27,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1434 [2024-11-28 02:29:27,247 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:27,247 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 4, 4, 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] [2024-11-28 02:29:27,269 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-28 02:29:27,448 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17,7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:29:27,448 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:29:27,449 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:27,449 INFO L85 PathProgramCache]: Analyzing trace with hash 376055082, now seen corresponding path program 1 times [2024-11-28 02:29:27,449 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:29:27,449 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760764886] [2024-11-28 02:29:27,450 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:27,450 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:29:28,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:29,579 INFO L134 CoverageAnalysis]: Checked inductivity of 87813 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87813 trivial. 0 not checked. [2024-11-28 02:29:29,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:29:29,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760764886] [2024-11-28 02:29:29,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1760764886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:29:29,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:29:29,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:29:29,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555914844] [2024-11-28 02:29:29,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:29:29,580 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:29:29,581 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:29:29,581 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:29:29,582 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:29:29,582 INFO L87 Difference]: Start difference. First operand 11497 states and 17573 transitions. Second operand has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 3 states have call successors, (225), 2 states have call predecessors, (225), 4 states have return successors, (224), 3 states have call predecessors, (224), 3 states have call successors, (224) [2024-11-28 02:29:36,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:36,093 INFO L93 Difference]: Finished difference Result 22421 states and 34459 transitions. [2024-11-28 02:29:36,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-28 02:29:36,093 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 3 states have call successors, (225), 2 states have call predecessors, (225), 4 states have return successors, (224), 3 states have call predecessors, (224), 3 states have call successors, (224) Word has length 1433 [2024-11-28 02:29:36,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:36,157 INFO L225 Difference]: With dead ends: 22421 [2024-11-28 02:29:36,157 INFO L226 Difference]: Without dead ends: 11497 [2024-11-28 02:29:36,198 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2024-11-28 02:29:36,199 INFO L435 NwaCegarLoop]: 3775 mSDtfsCounter, 4735 mSDsluCounter, 2665 mSDsCounter, 0 mSdLazyCounter, 3289 mSolverCounterSat, 1141 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4735 SdHoareTripleChecker+Valid, 6440 SdHoareTripleChecker+Invalid, 4430 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1141 IncrementalHoareTripleChecker+Valid, 3289 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.6s IncrementalHoareTripleChecker+Time [2024-11-28 02:29:36,199 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4735 Valid, 6440 Invalid, 4430 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1141 Valid, 3289 Invalid, 0 Unknown, 0 Unchecked, 5.6s Time] [2024-11-28 02:29:36,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11497 states. [2024-11-28 02:29:37,667 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11497 to 11497. [2024-11-28 02:29:37,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11497 states, 6924 states have (on average 1.256210283073368) internal successors, (8698), 7567 states have internal predecessors, (8698), 4382 states have call successors, (4382), 182 states have call predecessors, (4382), 190 states have return successors, (4485), 3895 states have call predecessors, (4485), 4380 states have call successors, (4485) [2024-11-28 02:29:37,707 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11497 states to 11497 states and 17565 transitions. [2024-11-28 02:29:37,727 INFO L78 Accepts]: Start accepts. Automaton has 11497 states and 17565 transitions. Word has length 1433 [2024-11-28 02:29:37,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:37,728 INFO L471 AbstractCegarLoop]: Abstraction has 11497 states and 17565 transitions. [2024-11-28 02:29:37,728 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.333333333333336) internal successors, (338), 6 states have internal predecessors, (338), 3 states have call successors, (225), 2 states have call predecessors, (225), 4 states have return successors, (224), 3 states have call predecessors, (224), 3 states have call successors, (224) [2024-11-28 02:29:37,728 INFO L276 IsEmpty]: Start isEmpty. Operand 11497 states and 17565 transitions. [2024-11-28 02:29:37,740 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1438 [2024-11-28 02:29:37,740 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:37,740 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 4, 4, 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] [2024-11-28 02:29:37,740 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-28 02:29:37,740 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:29:37,741 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:37,741 INFO L85 PathProgramCache]: Analyzing trace with hash -273261490, now seen corresponding path program 1 times [2024-11-28 02:29:37,741 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:29:37,742 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345734085] [2024-11-28 02:29:37,742 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:37,742 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:29:38,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:29:39,655 INFO L134 CoverageAnalysis]: Checked inductivity of 87813 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 87813 trivial. 0 not checked. [2024-11-28 02:29:39,656 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:29:39,656 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345734085] [2024-11-28 02:29:39,656 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345734085] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 02:29:39,656 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-28 02:29:39,656 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-28 02:29:39,656 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [772135386] [2024-11-28 02:29:39,656 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 02:29:39,657 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 02:29:39,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 02:29:39,658 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 02:29:39,659 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-28 02:29:39,659 INFO L87 Difference]: Start difference. First operand 11497 states and 17565 transitions. Second operand has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 4 states have call successors, (226), 2 states have call predecessors, (226), 4 states have return successors, (225), 4 states have call predecessors, (225), 4 states have call successors, (225) [2024-11-28 02:29:47,091 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 02:29:47,091 INFO L93 Difference]: Finished difference Result 21949 states and 33735 transitions. [2024-11-28 02:29:47,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 02:29:47,092 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 4 states have call successors, (226), 2 states have call predecessors, (226), 4 states have return successors, (225), 4 states have call predecessors, (225), 4 states have call successors, (225) Word has length 1437 [2024-11-28 02:29:47,093 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 02:29:47,172 INFO L225 Difference]: With dead ends: 21949 [2024-11-28 02:29:47,173 INFO L226 Difference]: Without dead ends: 11025 [2024-11-28 02:29:47,222 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-28 02:29:47,222 INFO L435 NwaCegarLoop]: 3798 mSDtfsCounter, 4595 mSDsluCounter, 2519 mSDsCounter, 0 mSdLazyCounter, 3056 mSolverCounterSat, 892 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4595 SdHoareTripleChecker+Valid, 6317 SdHoareTripleChecker+Invalid, 3948 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 892 IncrementalHoareTripleChecker+Valid, 3056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2024-11-28 02:29:47,223 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [4595 Valid, 6317 Invalid, 3948 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [892 Valid, 3056 Invalid, 0 Unknown, 0 Unchecked, 6.2s Time] [2024-11-28 02:29:47,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11025 states. [2024-11-28 02:29:49,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11025 to 11025. [2024-11-28 02:29:49,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11025 states, 6576 states have (on average 1.2503041362530414) internal successors, (8222), 7219 states have internal predecessors, (8222), 4262 states have call successors, (4262), 178 states have call predecessors, (4262), 186 states have return successors, (4365), 3775 states have call predecessors, (4365), 4260 states have call successors, (4365) [2024-11-28 02:29:49,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11025 states to 11025 states and 16849 transitions. [2024-11-28 02:29:49,108 INFO L78 Accepts]: Start accepts. Automaton has 11025 states and 16849 transitions. Word has length 1437 [2024-11-28 02:29:49,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 02:29:49,109 INFO L471 AbstractCegarLoop]: Abstraction has 11025 states and 16849 transitions. [2024-11-28 02:29:49,109 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 56.666666666666664) internal successors, (340), 6 states have internal predecessors, (340), 4 states have call successors, (226), 2 states have call predecessors, (226), 4 states have return successors, (225), 4 states have call predecessors, (225), 4 states have call successors, (225) [2024-11-28 02:29:49,109 INFO L276 IsEmpty]: Start isEmpty. Operand 11025 states and 16849 transitions. [2024-11-28 02:29:49,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1439 [2024-11-28 02:29:49,123 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 02:29:49,124 INFO L218 NwaCegarLoop]: trace histogram [210, 210, 210, 5, 5, 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] [2024-11-28 02:29:49,124 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-28 02:29:49,124 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 02:29:49,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 02:29:49,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1906998667, now seen corresponding path program 1 times [2024-11-28 02:29:49,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 02:29:49,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997745799] [2024-11-28 02:29:49,125 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:29:49,125 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 02:30:10,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:30:15,649 INFO L134 CoverageAnalysis]: Checked inductivity of 87825 backedges. 426 proven. 201 refuted. 0 times theorem prover too weak. 87198 trivial. 0 not checked. [2024-11-28 02:30:15,649 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 02:30:15,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997745799] [2024-11-28 02:30:15,649 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997745799] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 02:30:15,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445526569] [2024-11-28 02:30:15,649 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 02:30:15,650 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 02:30:15,650 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 02:30:15,652 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 02:30:15,655 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_bc41e914-4903-4673-b5e3-b900b45ab813/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 02:30:39,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 02:30:39,218 INFO L256 TraceCheckSpWp]: Trace formula consists of 4928 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 02:30:39,269 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 02:30:39,624 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 301 treesize of output 1 [2024-11-28 02:30:48,265 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 17 [2024-11-28 02:31:03,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 02:31:03,104 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 50 treesize of output 26 [2024-11-28 02:31:03,112 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-11-28 02:31:03,196 INFO L134 CoverageAnalysis]: Checked inductivity of 87825 backedges. 5334 proven. 38701 refuted. 0 times theorem prover too weak. 43790 trivial. 0 not checked. [2024-11-28 02:31:03,196 INFO L312 TraceCheckSpWp]: Computing backward predicates...