./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/aws-c-common/aws_linked_list_rend_harness.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version d790fecc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/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_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/config/AutomizerReach.xml -i ../../sv-benchmarks/c/aws-c-common/aws_linked_list_rend_harness.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash ec13cd31cb83ba576938e580d51fea49ff46ac6b1d457f8e4c2fd8b2dcc85ee1 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-d790fec [2024-11-28 03:55:59,199 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-28 03:55:59,300 INFO L114 SettingsManager]: Loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-28 03:55:59,308 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-28 03:55:59,308 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-28 03:55:59,364 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-28 03:55:59,365 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-28 03:55:59,365 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-28 03:55:59,366 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-28 03:55:59,366 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-28 03:55:59,366 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-28 03:55:59,366 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-28 03:55:59,370 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-28 03:55:59,370 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-28 03:55:59,370 INFO L153 SettingsManager]: * Use SBE=true [2024-11-28 03:55:59,370 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-28 03:55:59,371 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-28 03:55:59,371 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-28 03:55:59,371 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-28 03:55:59,371 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-28 03:55:59,371 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-28 03:55:59,371 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-28 03:55:59,371 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-28 03:55:59,372 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2024-11-28 03:55:59,372 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-28 03:55:59,372 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-28 03:55:59,372 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:55:59,372 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:55:59,372 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:55:59,372 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:59,373 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-28 03:55:59,373 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-28 03:55:59,373 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-28 03:55:59,373 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-28 03:55:59,373 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:55:59,373 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-28 03:55:59,376 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-28 03:55:59,376 INFO L153 SettingsManager]: * Compute procedure contracts=false [2024-11-28 03:55:59,376 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-28 03:55:59,376 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-28 03:55:59,376 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-28 03:55:59,376 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-28 03:55:59,376 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-28 03:55:59,376 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-28 03:55:59,377 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-28 03:55:59,377 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_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ec13cd31cb83ba576938e580d51fea49ff46ac6b1d457f8e4c2fd8b2dcc85ee1 [2024-11-28 03:55:59,749 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-28 03:55:59,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-28 03:55:59,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-28 03:55:59,772 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-28 03:55:59,773 INFO L274 PluginConnector]: CDTParser initialized [2024-11-28 03:55:59,776 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/../../sv-benchmarks/c/aws-c-common/aws_linked_list_rend_harness.i [2024-11-28 03:56:02,936 INFO L533 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/data/4a9ea1ba4/e1ac4dcafdd94946833a5ba3913f344c/FLAG6795add2f [2024-11-28 03:56:03,548 INFO L384 CDTParser]: Found 1 translation units. [2024-11-28 03:56:03,549 INFO L180 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/sv-benchmarks/c/aws-c-common/aws_linked_list_rend_harness.i [2024-11-28 03:56:03,584 INFO L427 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/data/4a9ea1ba4/e1ac4dcafdd94946833a5ba3913f344c/FLAG6795add2f [2024-11-28 03:56:03,998 INFO L435 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/data/4a9ea1ba4/e1ac4dcafdd94946833a5ba3913f344c [2024-11-28 03:56:04,000 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-28 03:56:04,002 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-28 03:56:04,003 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-28 03:56:04,003 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-28 03:56:04,008 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-28 03:56:04,009 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:56:03" (1/1) ... [2024-11-28 03:56:04,010 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52cc2d82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:04, skipping insertion in model container [2024-11-28 03:56:04,010 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:56:03" (1/1) ... [2024-11-28 03:56:04,086 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-28 03:56:04,349 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_2d24c53e-a557-4ab2-95b4-9d616c64ca01/sv-benchmarks/c/aws-c-common/aws_linked_list_rend_harness.i[4494,4507] [2024-11-28 03:56:04,357 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_2d24c53e-a557-4ab2-95b4-9d616c64ca01/sv-benchmarks/c/aws-c-common/aws_linked_list_rend_harness.i[4554,4567] [2024-11-28 03:56:05,506 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,507 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,507 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,508 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,509 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,524 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,525 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,527 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,527 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,529 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,531 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,531 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:05,532 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,215 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_2d24c53e-a557-4ab2-95b4-9d616c64ca01/sv-benchmarks/c/aws-c-common/aws_linked_list_rend_harness.i[150464,150477] [2024-11-28 03:56:06,216 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:56:06,233 INFO L200 MainTranslator]: Completed pre-run [2024-11-28 03:56:06,253 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_2d24c53e-a557-4ab2-95b4-9d616c64ca01/sv-benchmarks/c/aws-c-common/aws_linked_list_rend_harness.i[4494,4507] [2024-11-28 03:56:06,253 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_2d24c53e-a557-4ab2-95b4-9d616c64ca01/sv-benchmarks/c/aws-c-common/aws_linked_list_rend_harness.i[4554,4567] [2024-11-28 03:56:06,334 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,334 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,335 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,335 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,336 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,345 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,346 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,347 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,347 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,348 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,349 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,350 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,350 WARN L1675 CHandler]: Possible shadowing of function index [2024-11-28 03:56:06,455 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_2d24c53e-a557-4ab2-95b4-9d616c64ca01/sv-benchmarks/c/aws-c-common/aws_linked_list_rend_harness.i[150464,150477] [2024-11-28 03:56:06,455 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-28 03:56:06,670 INFO L204 MainTranslator]: Completed translation [2024-11-28 03:56:06,671 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06 WrapperNode [2024-11-28 03:56:06,671 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-28 03:56:06,672 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-28 03:56:06,672 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-28 03:56:06,672 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-28 03:56:06,680 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,772 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,820 INFO L138 Inliner]: procedures = 668, calls = 1038, calls flagged for inlining = 53, calls inlined = 6, statements flattened = 135 [2024-11-28 03:56:06,821 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-28 03:56:06,821 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-28 03:56:06,821 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-28 03:56:06,821 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-28 03:56:06,831 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,831 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,835 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,860 INFO L175 MemorySlicer]: Split 21 memory accesses to 3 slices as follows [2, 5, 14]. 67 percent of accesses are in the largest equivalence class. The 7 initializations are split as follows [2, 5, 0]. The 6 writes are split as follows [0, 0, 6]. [2024-11-28 03:56:06,860 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,862 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,882 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,883 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,890 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,900 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,902 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,914 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-28 03:56:06,914 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-28 03:56:06,914 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-28 03:56:06,914 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-28 03:56:06,915 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (1/1) ... [2024-11-28 03:56:06,923 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-28 03:56:06,938 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:06,952 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-28 03:56:06,958 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-28 03:56:06,985 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-28 03:56:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-28 03:56:06,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-28 03:56:06,986 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_node_next_is_valid [2024-11-28 03:56:06,987 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_node_next_is_valid [2024-11-28 03:56:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-11-28 03:56:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure aws_linked_list_is_valid [2024-11-28 03:56:06,987 INFO L138 BoogieDeclarations]: Found implementation of procedure aws_linked_list_is_valid [2024-11-28 03:56:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-28 03:56:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#0 [2024-11-28 03:56:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#1 [2024-11-28 03:56:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$#2 [2024-11-28 03:56:06,987 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-28 03:56:06,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-28 03:56:06,989 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-28 03:56:06,990 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-28 03:56:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-28 03:56:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#0 [2024-11-28 03:56:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#1 [2024-11-28 03:56:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$#2 [2024-11-28 03:56:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#0 [2024-11-28 03:56:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#1 [2024-11-28 03:56:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$#2 [2024-11-28 03:56:06,990 INFO L130 BoogieDeclarations]: Found specification of procedure nondet_uint64_t [2024-11-28 03:56:06,990 INFO L138 BoogieDeclarations]: Found implementation of procedure nondet_uint64_t [2024-11-28 03:56:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-28 03:56:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-28 03:56:06,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2024-11-28 03:56:07,274 INFO L234 CfgBuilder]: Building ICFG [2024-11-28 03:56:07,278 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-28 03:56:07,668 INFO L? ?]: Removed 54 outVars from TransFormulas that were not future-live. [2024-11-28 03:56:07,669 INFO L283 CfgBuilder]: Performing block encoding [2024-11-28 03:56:07,687 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-28 03:56:07,687 INFO L312 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-28 03:56:07,688 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:56:07 BoogieIcfgContainer [2024-11-28 03:56:07,688 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-28 03:56:07,692 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-28 03:56:07,693 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-28 03:56:07,699 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-28 03:56:07,699 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 03:56:03" (1/3) ... [2024-11-28 03:56:07,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e5625a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:56:07, skipping insertion in model container [2024-11-28 03:56:07,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:56:06" (2/3) ... [2024-11-28 03:56:07,700 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21e5625a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 03:56:07, skipping insertion in model container [2024-11-28 03:56:07,700 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:56:07" (3/3) ... [2024-11-28 03:56:07,705 INFO L128 eAbstractionObserver]: Analyzing ICFG aws_linked_list_rend_harness.i [2024-11-28 03:56:07,725 INFO L216 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-28 03:56:07,729 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG aws_linked_list_rend_harness.i that has 6 procedures, 68 locations, 1 initial locations, 2 loop locations, and 1 error locations. [2024-11-28 03:56:07,807 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-28 03:56:07,820 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;@23ff93e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-28 03:56:07,820 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-28 03:56:07,825 INFO L276 IsEmpty]: Start isEmpty. Operand has 68 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 49 states have internal predecessors, (65), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-28 03:56:07,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:56:07,836 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:07,837 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:07,837 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:07,843 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:07,844 INFO L85 PathProgramCache]: Analyzing trace with hash -721077294, now seen corresponding path program 1 times [2024-11-28 03:56:07,853 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:07,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [431488892] [2024-11-28 03:56:07,854 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:07,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:08,320 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-28 03:56:08,321 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:08,321 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [431488892] [2024-11-28 03:56:08,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [431488892] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:08,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952437167] [2024-11-28 03:56:08,322 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:08,322 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:08,322 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:08,325 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:08,337 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-28 03:56:08,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:08,781 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-28 03:56:08,793 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:08,826 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 41 trivial. 0 not checked. [2024-11-28 03:56:08,828 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:56:08,829 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952437167] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:08,829 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:56:08,829 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-28 03:56:08,832 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192021998] [2024-11-28 03:56:08,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:08,839 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-28 03:56:08,839 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:08,869 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-28 03:56:08,870 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-28 03:56:08,873 INFO L87 Difference]: Start difference. First operand has 68 states, 48 states have (on average 1.3541666666666667) internal successors, (65), 49 states have internal predecessors, (65), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) Second operand has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:56:08,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:08,920 INFO L93 Difference]: Finished difference Result 128 states and 184 transitions. [2024-11-28 03:56:08,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-28 03:56:08,923 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-28 03:56:08,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:08,934 INFO L225 Difference]: With dead ends: 128 [2024-11-28 03:56:08,934 INFO L226 Difference]: Without dead ends: 63 [2024-11-28 03:56:08,940 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 69 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 03:56:08,946 INFO L435 NwaCegarLoop]: 87 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, 87 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 03:56:08,947 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:56:08,966 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2024-11-28 03:56:08,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 63. [2024-11-28 03:56:08,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 63 states, 44 states have (on average 1.2954545454545454) internal successors, (57), 45 states have internal predecessors, (57), 13 states have call successors, (13), 5 states have call predecessors, (13), 5 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2024-11-28 03:56:09,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 82 transitions. [2024-11-28 03:56:09,011 INFO L78 Accepts]: Start accepts. Automaton has 63 states and 82 transitions. Word has length 68 [2024-11-28 03:56:09,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:09,011 INFO L471 AbstractCegarLoop]: Abstraction has 63 states and 82 transitions. [2024-11-28 03:56:09,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 14.5) internal successors, (29), 2 states have internal predecessors, (29), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:56:09,012 INFO L276 IsEmpty]: Start isEmpty. Operand 63 states and 82 transitions. [2024-11-28 03:56:09,017 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:56:09,017 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:09,018 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:09,031 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-28 03:56:09,218 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-28 03:56:09,219 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:09,219 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:09,219 INFO L85 PathProgramCache]: Analyzing trace with hash -2007385264, now seen corresponding path program 1 times [2024-11-28 03:56:09,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:09,220 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2139139981] [2024-11-28 03:56:09,220 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:09,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:10,538 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-28 03:56:10,538 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:10,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2139139981] [2024-11-28 03:56:10,538 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2139139981] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:10,538 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [695179485] [2024-11-28 03:56:10,539 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:10,539 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:10,539 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:10,544 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:10,546 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-28 03:56:10,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:10,843 INFO L256 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 37 conjuncts are in the unsatisfiable core [2024-11-28 03:56:10,860 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:11,032 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-28 03:56:11,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-11-28 03:56:11,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:11,268 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:11,270 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:11,284 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 25 [2024-11-28 03:56:11,303 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:11,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:11,308 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2024-11-28 03:56:12,684 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:56:12,684 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:56:12,684 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [695179485] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:12,684 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:56:12,684 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [6] total 13 [2024-11-28 03:56:12,685 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355369035] [2024-11-28 03:56:12,685 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:12,685 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-28 03:56:12,686 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:12,686 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-28 03:56:12,687 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=128, Unknown=0, NotChecked=0, Total=156 [2024-11-28 03:56:12,687 INFO L87 Difference]: Start difference. First operand 63 states and 82 transitions. Second operand has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:56:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:13,606 INFO L93 Difference]: Finished difference Result 171 states and 231 transitions. [2024-11-28 03:56:13,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:56:13,608 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-28 03:56:13,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:13,614 INFO L225 Difference]: With dead ends: 171 [2024-11-28 03:56:13,614 INFO L226 Difference]: Without dead ends: 122 [2024-11-28 03:56:13,615 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 62 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:56:13,616 INFO L435 NwaCegarLoop]: 63 mSDtfsCounter, 70 mSDsluCounter, 307 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 370 SdHoareTripleChecker+Invalid, 220 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:13,616 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 370 Invalid, 220 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-28 03:56:13,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-28 03:56:13,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 117. [2024-11-28 03:56:13,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 82 states have (on average 1.329268292682927) internal successors, (109), 85 states have internal predecessors, (109), 24 states have call successors, (24), 9 states have call predecessors, (24), 10 states have return successors, (24), 22 states have call predecessors, (24), 22 states have call successors, (24) [2024-11-28 03:56:13,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 157 transitions. [2024-11-28 03:56:13,669 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 157 transitions. Word has length 68 [2024-11-28 03:56:13,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:13,669 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 157 transitions. [2024-11-28 03:56:13,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.444444444444445) internal successors, (40), 8 states have internal predecessors, (40), 3 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:56:13,670 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 157 transitions. [2024-11-28 03:56:13,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:56:13,676 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:13,676 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:13,686 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-28 03:56:13,876 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:13,877 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:13,877 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:13,877 INFO L85 PathProgramCache]: Analyzing trace with hash 238194190, now seen corresponding path program 1 times [2024-11-28 03:56:13,877 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:13,877 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1917744253] [2024-11-28 03:56:13,877 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:13,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:13,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:14,466 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-28 03:56:14,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:14,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1917744253] [2024-11-28 03:56:14,466 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1917744253] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:14,466 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68109661] [2024-11-28 03:56:14,467 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:14,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:14,467 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:14,469 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:14,473 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-28 03:56:14,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:14,712 INFO L256 TraceCheckSpWp]: Trace formula consists of 325 conjuncts, 45 conjuncts are in the unsatisfiable core [2024-11-28 03:56:14,720 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:14,795 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-28 03:56:14,811 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-11-28 03:56:14,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:14,923 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:14,924 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2024-11-28 03:56:14,949 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:14,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:14,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:56:14,965 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 25 [2024-11-28 03:56:16,722 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:56:16,723 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:56:16,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68109661] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:56:16,723 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:56:16,723 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [6] total 14 [2024-11-28 03:56:16,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842463119] [2024-11-28 03:56:16,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:56:16,724 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-28 03:56:16,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:56:16,725 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-28 03:56:16,726 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:56:16,726 INFO L87 Difference]: Start difference. First operand 117 states and 157 transitions. Second operand has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 03:56:17,821 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:56:17,821 INFO L93 Difference]: Finished difference Result 171 states and 228 transitions. [2024-11-28 03:56:17,822 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-28 03:56:17,822 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 68 [2024-11-28 03:56:17,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:56:17,824 INFO L225 Difference]: With dead ends: 171 [2024-11-28 03:56:17,824 INFO L226 Difference]: Without dead ends: 120 [2024-11-28 03:56:17,825 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 57 SyntacticMatches, 4 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-11-28 03:56:17,829 INFO L435 NwaCegarLoop]: 62 mSDtfsCounter, 52 mSDsluCounter, 395 mSDsCounter, 0 mSdLazyCounter, 251 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 457 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 251 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:56:17,829 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 457 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 251 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:56:17,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-28 03:56:17,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 115. [2024-11-28 03:56:17,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 81 states have (on average 1.3209876543209877) internal successors, (107), 83 states have internal predecessors, (107), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:56:17,872 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 153 transitions. [2024-11-28 03:56:17,873 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 153 transitions. Word has length 68 [2024-11-28 03:56:17,873 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:56:17,873 INFO L471 AbstractCegarLoop]: Abstraction has 115 states and 153 transitions. [2024-11-28 03:56:17,873 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.888888888888889) internal successors, (53), 10 states have internal predecessors, (53), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 03:56:17,877 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 153 transitions. [2024-11-28 03:56:17,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:56:17,882 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:56:17,882 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:56:17,896 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-28 03:56:18,083 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:18,083 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:56:18,083 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:56:18,084 INFO L85 PathProgramCache]: Analyzing trace with hash -509112822, now seen corresponding path program 1 times [2024-11-28 03:56:18,084 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:56:18,084 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305825659] [2024-11-28 03:56:18,084 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:18,084 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:56:18,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:18,525 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-28 03:56:18,526 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:56:18,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305825659] [2024-11-28 03:56:18,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1305825659] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:56:18,526 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [229435485] [2024-11-28 03:56:18,526 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:56:18,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:56:18,527 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:56:18,529 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:56:18,534 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-28 03:56:18,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:56:18,739 INFO L256 TraceCheckSpWp]: Trace formula consists of 315 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-28 03:56:18,743 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:56:18,922 INFO L349 Elim1Store]: treesize reduction 66, result has 39.4 percent of original size [2024-11-28 03:56:18,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 76 treesize of output 128 [2024-11-28 03:56:18,934 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 15 [2024-11-28 03:56:18,949 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:56:18,950 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 16 treesize of output 1 [2024-11-28 03:56:19,009 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:56:19,010 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 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 41 treesize of output 13 [2024-11-28 03:56:19,015 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 13 treesize of output 9 [2024-11-28 03:56:23,123 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| 24)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (let ((.cse2 (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| 24))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) .cse2))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse1 (select |c_#memory_$Pointer$#2.base| .cse0))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse0 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| (store .cse1 .cse2 .cse0)) .cse0) .cse1))) (<= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| .cse0)))))))) is different from true [2024-11-28 03:56:27,773 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|) (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| 24)))) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (let ((.cse2 (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| 24))) (let ((.cse0 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|) .cse2))) (and (<= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| .cse0) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse1 (select |c_#memory_$Pointer$#2.base| .cse0))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse0 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| (store .cse1 .cse2 .cse0)) .cse0) .cse1))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| 24)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| 24))) (let ((.cse3 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) .cse5))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#2.base| .cse3))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse3 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| (store .cse4 .cse5 .cse3)) .cse3) .cse4))) (<= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| .cse3))))))))) is different from true [2024-11-28 03:56:36,827 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| 24)) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|)))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| Int)) (let ((.cse2 (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| 24))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) .cse2))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse0 (select |c_#memory_$Pointer$#2.base| .cse1))) (= .cse0 (select (store (store |c_#memory_$Pointer$#2.base| .cse1 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| (store .cse0 .cse2 .cse1)) .cse1)))) (<= |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| .cse1)))))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|) (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| 24)))) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| 24))) (let ((.cse3 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|) .cse5))) (and (<= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| .cse3) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#2.base| .cse3))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse3 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| (store .cse4 .cse5 .cse3)) .cse3) .cse4))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| 24)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (let ((.cse8 (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| 24))) (let ((.cse6 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) .cse8))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse7 (select |c_#memory_$Pointer$#2.base| .cse6))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse6 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| (store .cse7 .cse8 .cse6)) .cse6) .cse7))) (<= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| .cse6))))))))) is different from true [2024-11-28 03:57:11,289 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| 24)) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|)))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| Int)) (let ((.cse2 (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| 24))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) .cse2))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse0 (select |c_#memory_$Pointer$#2.base| .cse1))) (= .cse0 (select (store (store |c_#memory_$Pointer$#2.base| .cse1 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| (store .cse0 .cse2 .cse1)) .cse1)))) (<= |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| .cse1)))))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|) (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| 24)))) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| 24))) (let ((.cse3 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|) .cse5))) (and (<= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| .cse3) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#2.base| .cse3))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse3 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| (store .cse4 .cse5 .cse3)) .cse3) .cse4))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| 24)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (let ((.cse8 (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| 24))) (let ((.cse6 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) .cse8))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse7 (select |c_#memory_$Pointer$#2.base| .cse6))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse6 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| (store .cse7 .cse8 .cse6)) .cse6) .cse7))) (<= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| .cse6)))))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_4| Int)) (let ((.cse11 (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_4| 24))) (let ((.cse9 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4|) .cse11))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse10 (select |c_#memory_$Pointer$#2.base| .cse9))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse9 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4| (store .cse10 .cse11 .cse9)) .cse9) .cse10))) (<= |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4| .cse9))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4|))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_4| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_4| 24)) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4|)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_3| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3|) (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_3| 24)) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3|))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_3| Int)) (let ((.cse14 (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_3| 24))) (let ((.cse12 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3|) .cse14))) (and (<= |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3| .cse12) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse13 (select |c_#memory_$Pointer$#2.base| .cse12))) (= .cse13 (select (store (store |c_#memory_$Pointer$#2.base| .cse12 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3| (store .cse13 .cse14 .cse12)) .cse12)))))))))))) is different from true [2024-11-28 03:57:12,524 WARN L873 $PredicateComparison]: unable to prove that (and (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| 24)) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|)))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| Int)) (let ((.cse2 (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_2| 24))) (let ((.cse1 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2|) .cse2))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse0 (select |c_#memory_$Pointer$#2.base| .cse1))) (= .cse0 (select (store (store |c_#memory_$Pointer$#2.base| .cse1 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| (store .cse0 .cse2 .cse1)) .cse1)))) (<= |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_2| .cse1)))))))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|) (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| 24)))) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| Int)) (let ((.cse5 (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_11| 24))) (let ((.cse3 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|) .cse5))) (and (<= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| .cse3) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse4 (select |c_#memory_$Pointer$#2.base| .cse3))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse3 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11| (store .cse4 .cse5 .cse3)) .cse3) .cse4))))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_11|)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| 24)))))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| Int)) (let ((.cse8 (+ |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset_BEFORE_CALL_10| 24))) (let ((.cse6 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10|) .cse8))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse7 (select |c_#memory_$Pointer$#2.base| .cse6))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse6 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| (store .cse7 .cse8 .cse6)) .cse6) .cse7))) (<= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_10| .cse6)))))))) (or |c_aws_linked_list_is_valid_#t~short308#1| (< (select (select |c_#memory_$Pointer$#2.base| |c_aws_linked_list_is_valid_#in~list#1.base|) (+ |c_aws_linked_list_is_valid_#in~list#1.offset| 24)) 1)) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_4| Int)) (let ((.cse11 (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_4| 24))) (let ((.cse9 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4|) .cse11))) (and (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse10 (select |c_#memory_$Pointer$#2.base| .cse9))) (= (select (store (store |c_#memory_$Pointer$#2.base| .cse9 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4| (store .cse10 .cse11 .cse9)) .cse9) .cse10))) (<= |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4| .cse9))))) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4|))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_4| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4|) (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_4| 24)) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_4|)))) (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3| Int)) (and (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_3| Int)) (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3|) (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_3| 24)) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3|)) (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3|))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3| Int)) (and (<= 2 |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3|) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_3| Int)) (let ((.cse14 (+ |v_ULTIMATE.start_aws_linked_list_rend_~list#1.offset_BEFORE_CALL_3| 24))) (let ((.cse12 (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3|) .cse14))) (and (<= |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3| .cse12) (exists ((v_DerPreprocessor_1 (Array Int Int))) (let ((.cse13 (select |c_#memory_$Pointer$#2.base| .cse12))) (= .cse13 (select (store (store |c_#memory_$Pointer$#2.base| .cse12 v_DerPreprocessor_1) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_3| (store .cse13 .cse14 .cse12)) .cse12)))))))))))) is different from true [2024-11-28 03:57:13,956 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 37 not checked. [2024-11-28 03:57:13,956 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:57:14,974 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:14,975 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 234 treesize of output 232 [2024-11-28 03:57:14,988 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 162 treesize of output 146 [2024-11-28 03:57:15,058 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 129 treesize of output 117 [2024-11-28 03:57:16,322 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 03:57:16,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [229435485] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:16,323 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-28 03:57:16,323 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6, 20] total 33 [2024-11-28 03:57:16,323 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154704224] [2024-11-28 03:57:16,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:16,323 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:57:16,323 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:16,324 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:57:16,325 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=642, Unknown=40, NotChecked=280, Total=1056 [2024-11-28 03:57:16,325 INFO L87 Difference]: Start difference. First operand 115 states and 153 transitions. Second operand has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:57:21,347 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:21,348 INFO L93 Difference]: Finished difference Result 194 states and 274 transitions. [2024-11-28 03:57:21,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-28 03:57:21,349 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-28 03:57:21,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:21,351 INFO L225 Difference]: With dead ends: 194 [2024-11-28 03:57:21,351 INFO L226 Difference]: Without dead ends: 134 [2024-11-28 03:57:21,353 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 150 GetRequests, 111 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 5 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 57.4s TimeCoverageRelationStatistics Valid=140, Invalid=1095, Unknown=45, NotChecked=360, Total=1640 [2024-11-28 03:57:21,354 INFO L435 NwaCegarLoop]: 69 mSDtfsCounter, 174 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 290 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 443 SdHoareTripleChecker+Invalid, 327 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 290 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:21,354 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 443 Invalid, 327 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 290 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-28 03:57:21,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2024-11-28 03:57:21,384 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 117. [2024-11-28 03:57:21,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 117 states, 83 states have (on average 1.3132530120481927) internal successors, (109), 85 states have internal predecessors, (109), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:57:21,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 117 states to 117 states and 155 transitions. [2024-11-28 03:57:21,387 INFO L78 Accepts]: Start accepts. Automaton has 117 states and 155 transitions. Word has length 68 [2024-11-28 03:57:21,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:21,388 INFO L471 AbstractCegarLoop]: Abstraction has 117 states and 155 transitions. [2024-11-28 03:57:21,388 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.3636363636363638) internal successors, (37), 11 states have internal predecessors, (37), 4 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:57:21,388 INFO L276 IsEmpty]: Start isEmpty. Operand 117 states and 155 transitions. [2024-11-28 03:57:21,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:57:21,393 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:21,393 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:21,407 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-28 03:57:21,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:21,594 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:21,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:21,594 INFO L85 PathProgramCache]: Analyzing trace with hash 516659780, now seen corresponding path program 1 times [2024-11-28 03:57:21,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:21,594 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217538815] [2024-11-28 03:57:21,594 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:21,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:21,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:21,975 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-28 03:57:21,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:21,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217538815] [2024-11-28 03:57:21,976 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217538815] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:21,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1193490646] [2024-11-28 03:57:21,976 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:21,976 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:21,977 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:21,979 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:21,984 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-28 03:57:22,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:22,182 INFO L256 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 03:57:22,187 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:22,235 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-11-28 03:57:22,248 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-28 03:57:22,339 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:22,341 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:22,344 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:22,355 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 25 [2024-11-28 03:57:22,368 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:22,369 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:22,371 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 35 [2024-11-28 03:57:23,905 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:57:23,905 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:57:23,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1193490646] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:23,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:57:23,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [6] total 15 [2024-11-28 03:57:23,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953845948] [2024-11-28 03:57:23,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:23,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:57:23,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:23,907 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:57:23,907 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2024-11-28 03:57:23,907 INFO L87 Difference]: Start difference. First operand 117 states and 155 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 03:57:25,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:25,016 INFO L93 Difference]: Finished difference Result 191 states and 261 transitions. [2024-11-28 03:57:25,016 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-28 03:57:25,017 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) Word has length 68 [2024-11-28 03:57:25,017 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:25,018 INFO L225 Difference]: With dead ends: 191 [2024-11-28 03:57:25,019 INFO L226 Difference]: Without dead ends: 124 [2024-11-28 03:57:25,019 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 56 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=62, Invalid=318, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:57:25,021 INFO L435 NwaCegarLoop]: 71 mSDtfsCounter, 70 mSDsluCounter, 436 mSDsCounter, 0 mSdLazyCounter, 303 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 507 SdHoareTripleChecker+Invalid, 330 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 303 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:25,021 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 507 Invalid, 330 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 303 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-28 03:57:25,022 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-11-28 03:57:25,041 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 119. [2024-11-28 03:57:25,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 85 states have (on average 1.3058823529411765) internal successors, (111), 87 states have internal predecessors, (111), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:57:25,043 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 157 transitions. [2024-11-28 03:57:25,043 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 157 transitions. Word has length 68 [2024-11-28 03:57:25,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:25,044 INFO L471 AbstractCegarLoop]: Abstraction has 119 states and 157 transitions. [2024-11-28 03:57:25,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 4 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (7), 3 states have call predecessors, (7), 4 states have call successors, (7) [2024-11-28 03:57:25,044 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 157 transitions. [2024-11-28 03:57:25,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:57:25,045 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:25,046 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:25,059 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-28 03:57:25,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:25,250 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:25,250 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:25,250 INFO L85 PathProgramCache]: Analyzing trace with hash -1558347778, now seen corresponding path program 1 times [2024-11-28 03:57:25,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:25,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843278534] [2024-11-28 03:57:25,251 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:25,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:25,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:26,135 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 03:57:26,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:26,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843278534] [2024-11-28 03:57:26,135 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843278534] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:26,135 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1506097313] [2024-11-28 03:57:26,135 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:26,135 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:26,136 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:26,139 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:26,142 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-28 03:57:26,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:26,320 INFO L256 TraceCheckSpWp]: Trace formula consists of 285 conjuncts, 38 conjuncts are in the unsatisfiable core [2024-11-28 03:57:26,324 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:26,398 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:26,400 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 7 [2024-11-28 03:57:27,252 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 03:57:27,252 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:57:27,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1506097313] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:27,253 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:57:27,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [9] total 16 [2024-11-28 03:57:27,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352651973] [2024-11-28 03:57:27,253 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:27,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-28 03:57:27,254 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:27,254 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-28 03:57:27,254 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=200, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:57:27,255 INFO L87 Difference]: Start difference. First operand 119 states and 157 transitions. Second operand has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:57:27,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:27,998 INFO L93 Difference]: Finished difference Result 199 states and 270 transitions. [2024-11-28 03:57:27,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-28 03:57:27,999 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) Word has length 68 [2024-11-28 03:57:27,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:28,000 INFO L225 Difference]: With dead ends: 199 [2024-11-28 03:57:28,001 INFO L226 Difference]: Without dead ends: 126 [2024-11-28 03:57:28,001 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 54 SyntacticMatches, 8 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=64, Invalid=316, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:57:28,002 INFO L435 NwaCegarLoop]: 73 mSDtfsCounter, 83 mSDsluCounter, 478 mSDsCounter, 0 mSdLazyCounter, 288 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 551 SdHoareTripleChecker+Invalid, 312 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 288 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:28,002 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 551 Invalid, 312 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 288 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-28 03:57:28,003 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 126 states. [2024-11-28 03:57:28,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 126 to 121. [2024-11-28 03:57:28,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 87 states have (on average 1.2988505747126438) internal successors, (113), 89 states have internal predecessors, (113), 24 states have call successors, (24), 9 states have call predecessors, (24), 9 states have return successors, (22), 22 states have call predecessors, (22), 22 states have call successors, (22) [2024-11-28 03:57:28,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 159 transitions. [2024-11-28 03:57:28,022 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 159 transitions. Word has length 68 [2024-11-28 03:57:28,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:28,022 INFO L471 AbstractCegarLoop]: Abstraction has 121 states and 159 transitions. [2024-11-28 03:57:28,022 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.6363636363636362) internal successors, (40), 11 states have internal predecessors, (40), 4 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (7), 4 states have call predecessors, (7), 3 states have call successors, (7) [2024-11-28 03:57:28,022 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 159 transitions. [2024-11-28 03:57:28,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-28 03:57:28,023 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:28,024 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:28,034 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-28 03:57:28,224 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2024-11-28 03:57:28,224 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:28,225 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:28,225 INFO L85 PathProgramCache]: Analyzing trace with hash 1519181624, now seen corresponding path program 1 times [2024-11-28 03:57:28,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:28,225 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975798544] [2024-11-28 03:57:28,225 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:28,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:28,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:28,389 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 03:57:28,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:28,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975798544] [2024-11-28 03:57:28,390 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1975798544] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:28,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971037986] [2024-11-28 03:57:28,390 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:28,391 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:28,391 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:28,393 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:28,396 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-28 03:57:28,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:28,585 INFO L256 TraceCheckSpWp]: Trace formula consists of 270 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-28 03:57:28,588 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:28,694 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:57:28,695 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:57:28,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971037986] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:28,695 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:57:28,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2024-11-28 03:57:28,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [659437716] [2024-11-28 03:57:28,695 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:28,696 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-28 03:57:28,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:28,697 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-28 03:57:28,697 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-28 03:57:28,697 INFO L87 Difference]: Start difference. First operand 121 states and 159 transitions. Second operand has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:57:28,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:28,861 INFO L93 Difference]: Finished difference Result 254 states and 345 transitions. [2024-11-28 03:57:28,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-28 03:57:28,862 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 68 [2024-11-28 03:57:28,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:28,864 INFO L225 Difference]: With dead ends: 254 [2024-11-28 03:57:28,864 INFO L226 Difference]: Without dead ends: 151 [2024-11-28 03:57:28,865 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:57:28,866 INFO L435 NwaCegarLoop]: 84 mSDtfsCounter, 109 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:28,866 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 217 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:57:28,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 151 states. [2024-11-28 03:57:28,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 151 to 151. [2024-11-28 03:57:28,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 151 states, 113 states have (on average 1.336283185840708) internal successors, (151), 117 states have internal predecessors, (151), 26 states have call successors, (26), 9 states have call predecessors, (26), 11 states have return successors, (28), 24 states have call predecessors, (28), 24 states have call successors, (28) [2024-11-28 03:57:28,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 151 states to 151 states and 205 transitions. [2024-11-28 03:57:28,894 INFO L78 Accepts]: Start accepts. Automaton has 151 states and 205 transitions. Word has length 68 [2024-11-28 03:57:28,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:28,894 INFO L471 AbstractCegarLoop]: Abstraction has 151 states and 205 transitions. [2024-11-28 03:57:28,894 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.666666666666667) internal successors, (40), 6 states have internal predecessors, (40), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:57:28,895 INFO L276 IsEmpty]: Start isEmpty. Operand 151 states and 205 transitions. [2024-11-28 03:57:28,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:57:28,896 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:28,896 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:28,907 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-28 03:57:29,096 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:29,097 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:29,097 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:29,097 INFO L85 PathProgramCache]: Analyzing trace with hash 239399820, now seen corresponding path program 1 times [2024-11-28 03:57:29,097 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:29,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126045826] [2024-11-28 03:57:29,098 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:29,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:29,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:29,476 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:57:29,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:29,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126045826] [2024-11-28 03:57:29,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126045826] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:29,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2022095230] [2024-11-28 03:57:29,476 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:29,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:29,476 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:29,480 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:29,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-28 03:57:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:29,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 375 conjuncts, 57 conjuncts are in the unsatisfiable core [2024-11-28 03:57:29,709 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:29,775 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 9 [2024-11-28 03:57:29,790 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 19 [2024-11-28 03:57:29,888 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:29,889 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 28 [2024-11-28 03:57:29,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:29,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:29,900 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 35 treesize of output 40 [2024-11-28 03:57:29,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:29,908 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 20 [2024-11-28 03:57:29,921 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:29,922 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-11-28 03:57:29,992 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:29,996 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:29,997 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 42 [2024-11-28 03:57:30,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 31 treesize of output 25 [2024-11-28 03:57:30,011 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:30,015 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:30,017 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 35 [2024-11-28 03:57:30,024 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 13 [2024-11-28 03:57:31,039 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 44 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-28 03:57:31,039 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:57:31,555 WARN L851 $PredicateComparison]: unable to prove that (let ((.cse1 (+ |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.offset| 24)) (.cse2 (+ 16 |c_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.offset|))) (and (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_18| Int)) (or (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_18| 1)) (forall ((v_ArrVal_588 Int) (v_ArrVal_592 (Array Int Int)) (v_subst_1 Int)) (= (select (select (let ((.cse0 (store (store |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#2.offset| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_588)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_18| v_ArrVal_592))) (store .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse0 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 v_subst_1))) |c_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base|) .cse2) 0)))) (forall ((|v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_18| Int)) (or (< |c_#StackHeapBarrier| (+ |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_18| 1)) (forall ((v_ArrVal_585 Int) (v_ArrVal_593 (Array Int Int))) (= (select (select (let ((.cse3 (store (store |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base| (store (select |c_#memory_$Pointer$#2.base| |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base|) |c_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.offset| v_ArrVal_585)) |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_18| v_ArrVal_593))) (store .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base| (store (select .cse3 |c_ULTIMATE.start_ensure_linked_list_is_allocated_~list#1.base|) .cse1 |v_ULTIMATE.start_ensure_linked_list_is_allocated_~curr~0#1.base_18|))) |c_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base|) .cse2) 0)))))) is different from false [2024-11-28 03:57:31,596 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:57:31,598 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:57:31,703 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2024-11-28 03:57:31,703 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 171 treesize of output 200 [2024-11-28 03:57:31,721 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:57:31,722 INFO L173 IndexEqualityManager]: detected equality via solver [2024-11-28 03:57:31,836 INFO L349 Elim1Store]: treesize reduction 86, result has 45.2 percent of original size [2024-11-28 03:57:31,836 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 4 case distinctions, treesize of input 201 treesize of output 230 [2024-11-28 03:57:31,868 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:31,868 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 260 treesize of output 258 [2024-11-28 03:57:31,885 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 217 treesize of output 205 [2024-11-28 03:57:31,911 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:31,911 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 296 treesize of output 296 [2024-11-28 03:57:31,930 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 263 treesize of output 251 [2024-11-28 03:57:32,009 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 8 treesize of output 4 [2024-11-28 03:57:32,991 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 03:57:32,992 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 83 treesize of output 79 [2024-11-28 03:57:33,064 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2024-11-28 03:57:33,134 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 10 proven. 10 refuted. 0 times theorem prover too weak. 25 trivial. 1 not checked. [2024-11-28 03:57:33,134 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2022095230] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:57:33,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:57:33,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 11, 10] total 23 [2024-11-28 03:57:33,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1654443992] [2024-11-28 03:57:33,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:57:33,135 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-28 03:57:33,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:33,135 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-28 03:57:33,136 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=391, Unknown=12, NotChecked=40, Total=506 [2024-11-28 03:57:33,136 INFO L87 Difference]: Start difference. First operand 151 states and 205 transitions. Second operand has 23 states, 20 states have (on average 4.9) internal successors, (98), 22 states have internal predecessors, (98), 9 states have call successors, (20), 3 states have call predecessors, (20), 7 states have return successors, (19), 7 states have call predecessors, (19), 9 states have call successors, (19) [2024-11-28 03:57:35,021 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:35,021 INFO L93 Difference]: Finished difference Result 236 states and 326 transitions. [2024-11-28 03:57:35,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-28 03:57:35,022 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 20 states have (on average 4.9) internal successors, (98), 22 states have internal predecessors, (98), 9 states have call successors, (20), 3 states have call predecessors, (20), 7 states have return successors, (19), 7 states have call predecessors, (19), 9 states have call successors, (19) Word has length 70 [2024-11-28 03:57:35,022 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:35,024 INFO L225 Difference]: With dead ends: 236 [2024-11-28 03:57:35,024 INFO L226 Difference]: Without dead ends: 166 [2024-11-28 03:57:35,025 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 119 SyntacticMatches, 5 SemanticMatches, 32 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=133, Invalid=911, Unknown=16, NotChecked=62, Total=1122 [2024-11-28 03:57:35,026 INFO L435 NwaCegarLoop]: 113 mSDtfsCounter, 83 mSDsluCounter, 1322 mSDsCounter, 0 mSdLazyCounter, 889 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 1435 SdHoareTripleChecker+Invalid, 1071 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 138 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:35,026 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 1435 Invalid, 1071 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [44 Valid, 889 Invalid, 0 Unknown, 138 Unchecked, 1.3s Time] [2024-11-28 03:57:35,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-11-28 03:57:35,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 159. [2024-11-28 03:57:35,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 119 states have (on average 1.319327731092437) internal successors, (157), 124 states have internal predecessors, (157), 26 states have call successors, (26), 10 states have call predecessors, (26), 13 states have return successors, (31), 24 states have call predecessors, (31), 24 states have call successors, (31) [2024-11-28 03:57:35,085 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2024-11-28 03:57:35,085 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 214 transitions. Word has length 70 [2024-11-28 03:57:35,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:35,085 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 214 transitions. [2024-11-28 03:57:35,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 20 states have (on average 4.9) internal successors, (98), 22 states have internal predecessors, (98), 9 states have call successors, (20), 3 states have call predecessors, (20), 7 states have return successors, (19), 7 states have call predecessors, (19), 9 states have call successors, (19) [2024-11-28 03:57:35,086 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 214 transitions. [2024-11-28 03:57:35,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-28 03:57:35,087 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:35,087 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:57:35,096 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-28 03:57:35,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:35,291 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:35,291 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:35,291 INFO L85 PathProgramCache]: Analyzing trace with hash -266516484, now seen corresponding path program 1 times [2024-11-28 03:57:35,291 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:35,291 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [570641796] [2024-11-28 03:57:35,292 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:35,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:35,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:35,505 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 03:57:35,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:35,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [570641796] [2024-11-28 03:57:35,506 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [570641796] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:35,506 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [86708434] [2024-11-28 03:57:35,506 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:35,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:35,506 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:35,508 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:35,511 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-28 03:57:35,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:35,705 INFO L256 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-28 03:57:35,707 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:35,821 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:57:35,821 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:57:35,821 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [86708434] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:35,821 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:57:35,822 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 12 [2024-11-28 03:57:35,822 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414099242] [2024-11-28 03:57:35,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:35,822 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:57:35,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:35,823 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:57:35,823 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2024-11-28 03:57:35,823 INFO L87 Difference]: Start difference. First operand 159 states and 214 transitions. Second operand has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:57:36,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:36,089 INFO L93 Difference]: Finished difference Result 320 states and 436 transitions. [2024-11-28 03:57:36,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:57:36,089 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 70 [2024-11-28 03:57:36,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:36,091 INFO L225 Difference]: With dead ends: 320 [2024-11-28 03:57:36,092 INFO L226 Difference]: Without dead ends: 183 [2024-11-28 03:57:36,093 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=199, Unknown=0, NotChecked=0, Total=240 [2024-11-28 03:57:36,093 INFO L435 NwaCegarLoop]: 60 mSDtfsCounter, 93 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 258 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:36,094 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 258 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:57:36,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-28 03:57:36,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 159. [2024-11-28 03:57:36,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159 states, 119 states have (on average 1.319327731092437) internal successors, (157), 124 states have internal predecessors, (157), 26 states have call successors, (26), 10 states have call predecessors, (26), 13 states have return successors, (31), 24 states have call predecessors, (31), 24 states have call successors, (31) [2024-11-28 03:57:36,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159 states to 159 states and 214 transitions. [2024-11-28 03:57:36,123 INFO L78 Accepts]: Start accepts. Automaton has 159 states and 214 transitions. Word has length 70 [2024-11-28 03:57:36,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:36,123 INFO L471 AbstractCegarLoop]: Abstraction has 159 states and 214 transitions. [2024-11-28 03:57:36,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.0) internal successors, (42), 7 states have internal predecessors, (42), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:57:36,124 INFO L276 IsEmpty]: Start isEmpty. Operand 159 states and 214 transitions. [2024-11-28 03:57:36,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-28 03:57:36,125 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:36,125 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:57:36,136 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-28 03:57:36,328 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:36,329 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:36,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1014751658, now seen corresponding path program 1 times [2024-11-28 03:57:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:36,329 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2456663] [2024-11-28 03:57:36,329 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:36,329 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:36,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:36,561 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 03:57:36,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:36,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2456663] [2024-11-28 03:57:36,561 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2456663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:36,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1003439543] [2024-11-28 03:57:36,562 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:36,562 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:36,562 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:36,565 INFO L229 MonitoredProcess]: Starting monitored process 11 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:36,569 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-28 03:57:36,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:36,759 INFO L256 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:57:36,761 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:36,886 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:57:36,888 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:57:36,888 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1003439543] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:36,888 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:57:36,888 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [8] total 14 [2024-11-28 03:57:36,888 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1761371872] [2024-11-28 03:57:36,888 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:36,889 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 03:57:36,889 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:36,889 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 03:57:36,889 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:57:36,890 INFO L87 Difference]: Start difference. First operand 159 states and 214 transitions. Second operand has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:57:37,234 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:37,234 INFO L93 Difference]: Finished difference Result 346 states and 478 transitions. [2024-11-28 03:57:37,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-28 03:57:37,235 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 72 [2024-11-28 03:57:37,235 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:37,237 INFO L225 Difference]: With dead ends: 346 [2024-11-28 03:57:37,237 INFO L226 Difference]: Without dead ends: 209 [2024-11-28 03:57:37,238 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2024-11-28 03:57:37,239 INFO L435 NwaCegarLoop]: 58 mSDtfsCounter, 108 mSDsluCounter, 244 mSDsCounter, 0 mSdLazyCounter, 169 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 108 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 207 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 169 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:37,239 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [108 Valid, 302 Invalid, 207 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 169 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 03:57:37,240 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 209 states. [2024-11-28 03:57:37,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 209 to 161. [2024-11-28 03:57:37,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 121 states have (on average 1.3305785123966942) internal successors, (161), 126 states have internal predecessors, (161), 26 states have call successors, (26), 10 states have call predecessors, (26), 13 states have return successors, (31), 24 states have call predecessors, (31), 24 states have call successors, (31) [2024-11-28 03:57:37,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 218 transitions. [2024-11-28 03:57:37,270 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 218 transitions. Word has length 72 [2024-11-28 03:57:37,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:37,270 INFO L471 AbstractCegarLoop]: Abstraction has 161 states and 218 transitions. [2024-11-28 03:57:37,271 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 5.5) internal successors, (44), 8 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 3 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:57:37,271 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 218 transitions. [2024-11-28 03:57:37,272 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-28 03:57:37,272 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:37,272 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 03:57:37,281 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-28 03:57:37,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-28 03:57:37,477 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:37,478 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:37,478 INFO L85 PathProgramCache]: Analyzing trace with hash 2033551352, now seen corresponding path program 1 times [2024-11-28 03:57:37,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:37,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211488184] [2024-11-28 03:57:37,478 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:37,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:37,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:37,844 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 03:57:37,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:37,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211488184] [2024-11-28 03:57:37,845 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211488184] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:37,845 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1801629258] [2024-11-28 03:57:37,845 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:37,845 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:37,845 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:37,862 INFO L229 MonitoredProcess]: Starting monitored process 12 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:37,865 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-28 03:57:38,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:38,098 INFO L256 TraceCheckSpWp]: Trace formula consists of 314 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-28 03:57:38,100 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:38,127 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 26 proven. 0 refuted. 0 times theorem prover too weak. 19 trivial. 0 not checked. [2024-11-28 03:57:38,127 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:57:38,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1801629258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:38,128 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:57:38,128 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [7] total 8 [2024-11-28 03:57:38,128 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629889544] [2024-11-28 03:57:38,128 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:38,128 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-28 03:57:38,129 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:38,129 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-28 03:57:38,129 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:57:38,130 INFO L87 Difference]: Start difference. First operand 161 states and 218 transitions. Second operand has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:57:38,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:38,200 INFO L93 Difference]: Finished difference Result 318 states and 454 transitions. [2024-11-28 03:57:38,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-28 03:57:38,201 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 73 [2024-11-28 03:57:38,201 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:38,204 INFO L225 Difference]: With dead ends: 318 [2024-11-28 03:57:38,204 INFO L226 Difference]: Without dead ends: 179 [2024-11-28 03:57:38,205 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2024-11-28 03:57:38,206 INFO L435 NwaCegarLoop]: 79 mSDtfsCounter, 2 mSDsluCounter, 73 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 152 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:38,206 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 152 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 03:57:38,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 179 states. [2024-11-28 03:57:38,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 179 to 167. [2024-11-28 03:57:38,249 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 127 states have (on average 1.330708661417323) internal successors, (169), 132 states have internal predecessors, (169), 26 states have call successors, (26), 10 states have call predecessors, (26), 13 states have return successors, (31), 24 states have call predecessors, (31), 24 states have call successors, (31) [2024-11-28 03:57:38,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 226 transitions. [2024-11-28 03:57:38,252 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 226 transitions. Word has length 73 [2024-11-28 03:57:38,253 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:38,253 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 226 transitions. [2024-11-28 03:57:38,253 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 14.666666666666666) internal successors, (44), 3 states have internal predecessors, (44), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-11-28 03:57:38,253 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 226 transitions. [2024-11-28 03:57:38,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-28 03:57:38,255 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:38,255 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:38,265 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-11-28 03:57:38,458 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:38,459 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:38,459 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:38,459 INFO L85 PathProgramCache]: Analyzing trace with hash -870351846, now seen corresponding path program 1 times [2024-11-28 03:57:38,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:38,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [726250932] [2024-11-28 03:57:38,459 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:38,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:38,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:38,755 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 0 proven. 30 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 03:57:38,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:38,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [726250932] [2024-11-28 03:57:38,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [726250932] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:38,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749766720] [2024-11-28 03:57:38,756 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:38,756 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:38,757 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:38,759 INFO L229 MonitoredProcess]: Starting monitored process 13 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:38,763 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-28 03:57:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:38,981 INFO L256 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-28 03:57:38,983 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:39,125 INFO L134 CoverageAnalysis]: Checked inductivity of 45 backedges. 40 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-28 03:57:39,125 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 03:57:39,125 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749766720] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 03:57:39,125 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 03:57:39,125 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2024-11-28 03:57:39,126 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650126616] [2024-11-28 03:57:39,126 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 03:57:39,126 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 03:57:39,126 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:57:39,127 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 03:57:39,127 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=149, Unknown=0, NotChecked=0, Total=182 [2024-11-28 03:57:39,127 INFO L87 Difference]: Start difference. First operand 167 states and 226 transitions. Second operand has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 03:57:39,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 03:57:39,320 INFO L93 Difference]: Finished difference Result 314 states and 423 transitions. [2024-11-28 03:57:39,320 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 03:57:39,320 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 81 [2024-11-28 03:57:39,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 03:57:39,323 INFO L225 Difference]: With dead ends: 314 [2024-11-28 03:57:39,323 INFO L226 Difference]: Without dead ends: 133 [2024-11-28 03:57:39,324 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=56, Invalid=250, Unknown=0, NotChecked=0, Total=306 [2024-11-28 03:57:39,326 INFO L435 NwaCegarLoop]: 83 mSDtfsCounter, 112 mSDsluCounter, 212 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 295 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 03:57:39,326 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 295 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 03:57:39,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 133 states. [2024-11-28 03:57:39,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 133 to 133. [2024-11-28 03:57:39,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 133 states, 95 states have (on average 1.231578947368421) internal successors, (117), 100 states have internal predecessors, (117), 24 states have call successors, (24), 10 states have call predecessors, (24), 13 states have return successors, (29), 22 states have call predecessors, (29), 22 states have call successors, (29) [2024-11-28 03:57:39,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 133 states to 133 states and 170 transitions. [2024-11-28 03:57:39,402 INFO L78 Accepts]: Start accepts. Automaton has 133 states and 170 transitions. Word has length 81 [2024-11-28 03:57:39,403 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 03:57:39,403 INFO L471 AbstractCegarLoop]: Abstraction has 133 states and 170 transitions. [2024-11-28 03:57:39,404 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 10.166666666666666) internal successors, (61), 7 states have internal predecessors, (61), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 03:57:39,404 INFO L276 IsEmpty]: Start isEmpty. Operand 133 states and 170 transitions. [2024-11-28 03:57:39,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2024-11-28 03:57:39,405 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 03:57:39,405 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 03:57:39,415 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-28 03:57:39,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-28 03:57:39,606 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 03:57:39,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 03:57:39,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1092411242, now seen corresponding path program 1 times [2024-11-28 03:57:39,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 03:57:39,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2058090332] [2024-11-28 03:57:39,607 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:39,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 03:57:39,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:40,065 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 36 trivial. 0 not checked. [2024-11-28 03:57:40,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 03:57:40,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2058090332] [2024-11-28 03:57:40,066 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2058090332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 03:57:40,066 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1796099423] [2024-11-28 03:57:40,066 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 03:57:40,066 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 03:57:40,066 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 03:57:40,068 INFO L229 MonitoredProcess]: Starting monitored process 14 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 03:57:40,071 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-28 03:57:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 03:57:40,339 INFO L256 TraceCheckSpWp]: Trace formula consists of 419 conjuncts, 123 conjuncts are in the unsatisfiable core [2024-11-28 03:57:40,347 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 03:57:40,508 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-28 03:57:40,516 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:40,517 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-28 03:57:40,532 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-28 03:57:40,538 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:40,539 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-28 03:57:40,650 INFO L349 Elim1Store]: treesize reduction 38, result has 22.4 percent of original size [2024-11-28 03:57:40,651 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 4 new quantified variables, introduced 2 case distinctions, treesize of input 95 treesize of output 101 [2024-11-28 03:57:40,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:40,661 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 03:57:40,662 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 21 [2024-11-28 03:57:40,666 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2024-11-28 03:57:40,680 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 70 treesize of output 54 [2024-11-28 03:58:18,825 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 34 proven. 1 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2024-11-28 03:58:18,826 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 03:58:20,428 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 11 proven. 17 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-28 03:58:20,428 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1796099423] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 03:58:20,428 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 03:58:20,428 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 23, 15] total 41 [2024-11-28 03:58:20,429 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113503917] [2024-11-28 03:58:20,429 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 03:58:20,429 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-11-28 03:58:20,430 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 03:58:20,430 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-11-28 03:58:20,431 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=140, Invalid=1475, Unknown=25, NotChecked=0, Total=1640 [2024-11-28 03:58:20,431 INFO L87 Difference]: Start difference. First operand 133 states and 170 transitions. Second operand has 41 states, 37 states have (on average 2.972972972972973) internal successors, (110), 33 states have internal predecessors, (110), 9 states have call successors, (20), 6 states have call predecessors, (20), 10 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) [2024-11-28 03:58:25,649 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:58:29,739 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:58:34,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:58:38,449 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:58:42,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.98s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:58:46,786 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:58:48,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.26s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:58:53,129 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:58:57,332 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:09,448 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:13,466 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:17,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:19,791 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:23,811 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:27,817 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:35,934 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:39,946 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:44,281 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:48,306 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:52,319 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 03:59:56,340 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:00,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:12,548 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:16,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:17,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:21,988 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:26,373 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:30,411 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:38,401 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.99s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:47,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:00:56,996 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:01,119 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:05,252 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:13,715 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:23,498 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.56s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:35,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:39,632 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:53,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.48s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:01:58,573 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:09,014 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.55s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:17,151 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:21,391 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:37,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:41,509 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:45,522 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:02:49,537 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:05,809 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:09,852 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:14,888 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:18,914 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:22,959 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:26,982 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:31,017 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:35,037 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:39,054 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:43,073 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:47,103 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:48,377 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.24s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:03:52,409 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:16,689 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:20,703 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:24,725 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:28,744 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:32,752 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:33,994 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.09s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:38,049 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:42,065 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:46,855 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:48,670 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.43s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:53,362 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:04:57,943 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:02,029 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:04,130 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.82s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:08,163 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:12,172 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:21,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:25,619 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:29,629 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:33,641 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:37,846 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:42,019 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:46,128 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:50,148 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:54,492 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:05:58,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:06:02,578 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:06:06,593 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:06:10,816 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:06:14,853 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:06:18,873 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:06:36,585 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:06:40,618 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.03s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:07:05,521 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:07:14,926 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.07s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:07:15,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:15,281 INFO L93 Difference]: Finished difference Result 439 states and 573 transitions. [2024-11-28 04:07:15,282 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 65 states. [2024-11-28 04:07:15,282 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 37 states have (on average 2.972972972972973) internal successors, (110), 33 states have internal predecessors, (110), 9 states have call successors, (20), 6 states have call predecessors, (20), 10 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) Word has length 83 [2024-11-28 04:07:15,283 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:15,287 INFO L225 Difference]: With dead ends: 439 [2024-11-28 04:07:15,287 INFO L226 Difference]: Without dead ends: 266 [2024-11-28 04:07:15,289 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 220 GetRequests, 141 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 208.8s TimeCoverageRelationStatistics Valid=570, Invalid=5504, Unknown=88, NotChecked=0, Total=6162 [2024-11-28 04:07:15,290 INFO L435 NwaCegarLoop]: 87 mSDtfsCounter, 255 mSDsluCounter, 1667 mSDsCounter, 0 mSdLazyCounter, 1566 mSolverCounterSat, 25 mSolverCounterUnsat, 224 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 362.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 261 SdHoareTripleChecker+Valid, 1754 SdHoareTripleChecker+Invalid, 1815 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 1566 IncrementalHoareTripleChecker+Invalid, 224 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 363.7s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:15,291 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [261 Valid, 1754 Invalid, 1815 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 1566 Invalid, 224 Unknown, 0 Unchecked, 363.7s Time] [2024-11-28 04:07:15,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-28 04:07:15,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 169. [2024-11-28 04:07:15,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 169 states, 126 states have (on average 1.2380952380952381) internal successors, (156), 133 states have internal predecessors, (156), 26 states have call successors, (26), 12 states have call predecessors, (26), 16 states have return successors, (34), 23 states have call predecessors, (34), 24 states have call successors, (34) [2024-11-28 04:07:15,349 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 169 states to 169 states and 216 transitions. [2024-11-28 04:07:15,349 INFO L78 Accepts]: Start accepts. Automaton has 169 states and 216 transitions. Word has length 83 [2024-11-28 04:07:15,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:15,350 INFO L471 AbstractCegarLoop]: Abstraction has 169 states and 216 transitions. [2024-11-28 04:07:15,350 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 37 states have (on average 2.972972972972973) internal successors, (110), 33 states have internal predecessors, (110), 9 states have call successors, (20), 6 states have call predecessors, (20), 10 states have return successors, (19), 8 states have call predecessors, (19), 9 states have call successors, (19) [2024-11-28 04:07:15,350 INFO L276 IsEmpty]: Start isEmpty. Operand 169 states and 216 transitions. [2024-11-28 04:07:15,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:07:15,354 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:15,355 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:15,372 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-28 04:07:15,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-28 04:07:15,557 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:15,558 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:15,558 INFO L85 PathProgramCache]: Analyzing trace with hash -1088313192, now seen corresponding path program 1 times [2024-11-28 04:07:15,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:15,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1285320713] [2024-11-28 04:07:15,558 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:15,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:15,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:16,798 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 19 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-11-28 04:07:16,798 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:16,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1285320713] [2024-11-28 04:07:16,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1285320713] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:16,799 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1460332528] [2024-11-28 04:07:16,799 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:16,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:16,799 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:16,802 INFO L229 MonitoredProcess]: Starting monitored process 15 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:16,807 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-28 04:07:17,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:17,137 INFO L256 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 59 conjuncts are in the unsatisfiable core [2024-11-28 04:07:17,142 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:17,215 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-11-28 04:07:17,222 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-11-28 04:07:18,695 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 21 proven. 20 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2024-11-28 04:07:18,695 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:20,008 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 10 proven. 21 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-28 04:07:20,009 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1460332528] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:20,009 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:20,009 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 16, 13] total 32 [2024-11-28 04:07:20,009 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720448066] [2024-11-28 04:07:20,009 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:20,010 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-11-28 04:07:20,010 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:20,011 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-11-28 04:07:20,012 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=894, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:07:20,013 INFO L87 Difference]: Start difference. First operand 169 states and 216 transitions. Second operand has 32 states, 32 states have (on average 3.96875) internal successors, (127), 30 states have internal predecessors, (127), 11 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (22), 10 states have call predecessors, (22), 11 states have call successors, (22) [2024-11-28 04:07:25,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:25,076 INFO L93 Difference]: Finished difference Result 490 states and 690 transitions. [2024-11-28 04:07:25,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-28 04:07:25,077 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 32 states have (on average 3.96875) internal successors, (127), 30 states have internal predecessors, (127), 11 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (22), 10 states have call predecessors, (22), 11 states have call successors, (22) Word has length 85 [2024-11-28 04:07:25,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:25,101 INFO L225 Difference]: With dead ends: 490 [2024-11-28 04:07:25,101 INFO L226 Difference]: Without dead ends: 368 [2024-11-28 04:07:25,103 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 217 GetRequests, 148 SyntacticMatches, 6 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 835 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=497, Invalid=3663, Unknown=0, NotChecked=0, Total=4160 [2024-11-28 04:07:25,110 INFO L435 NwaCegarLoop]: 103 mSDtfsCounter, 393 mSDsluCounter, 1459 mSDsCounter, 0 mSdLazyCounter, 1654 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 414 SdHoareTripleChecker+Valid, 1562 SdHoareTripleChecker+Invalid, 1781 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 1654 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:25,110 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [414 Valid, 1562 Invalid, 1781 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 1654 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2024-11-28 04:07:25,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-28 04:07:25,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 312. [2024-11-28 04:07:25,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 236 states have (on average 1.2542372881355932) internal successors, (296), 246 states have internal predecessors, (296), 50 states have call successors, (50), 18 states have call predecessors, (50), 25 states have return successors, (67), 47 states have call predecessors, (67), 47 states have call successors, (67) [2024-11-28 04:07:25,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 413 transitions. [2024-11-28 04:07:25,275 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 413 transitions. Word has length 85 [2024-11-28 04:07:25,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:25,275 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 413 transitions. [2024-11-28 04:07:25,275 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 32 states have (on average 3.96875) internal successors, (127), 30 states have internal predecessors, (127), 11 states have call successors, (22), 3 states have call predecessors, (22), 6 states have return successors, (22), 10 states have call predecessors, (22), 11 states have call successors, (22) [2024-11-28 04:07:25,276 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 413 transitions. [2024-11-28 04:07:25,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:07:25,277 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:25,286 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:25,307 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-28 04:07:25,487 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-28 04:07:25,488 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:25,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:25,489 INFO L85 PathProgramCache]: Analyzing trace with hash -1224912106, now seen corresponding path program 1 times [2024-11-28 04:07:25,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:25,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [575186499] [2024-11-28 04:07:25,490 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:25,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:25,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:25,628 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-28 04:07:25,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:25,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [575186499] [2024-11-28 04:07:25,629 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [575186499] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:25,629 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2021833430] [2024-11-28 04:07:25,629 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:25,629 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:25,629 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:25,631 INFO L229 MonitoredProcess]: Starting monitored process 16 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:25,635 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-28 04:07:25,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:25,927 INFO L256 TraceCheckSpWp]: Trace formula consists of 411 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:07:25,930 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:25,951 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-28 04:07:25,951 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:25,951 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2021833430] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:25,951 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:25,951 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 4 [2024-11-28 04:07:25,951 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922525819] [2024-11-28 04:07:25,951 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:25,952 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:25,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:25,952 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:25,952 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:25,952 INFO L87 Difference]: Start difference. First operand 312 states and 413 transitions. Second operand has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:07:26,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:26,057 INFO L93 Difference]: Finished difference Result 525 states and 721 transitions. [2024-11-28 04:07:26,057 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:07:26,059 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-11-28 04:07:26,059 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:26,061 INFO L225 Difference]: With dead ends: 525 [2024-11-28 04:07:26,061 INFO L226 Difference]: Without dead ends: 315 [2024-11-28 04:07:26,063 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-28 04:07:26,063 INFO L435 NwaCegarLoop]: 81 mSDtfsCounter, 0 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 17 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 17 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:26,066 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 17 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:07:26,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-11-28 04:07:26,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 312. [2024-11-28 04:07:26,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 312 states, 236 states have (on average 1.2372881355932204) internal successors, (292), 246 states have internal predecessors, (292), 50 states have call successors, (50), 18 states have call predecessors, (50), 25 states have return successors, (67), 47 states have call predecessors, (67), 47 states have call successors, (67) [2024-11-28 04:07:26,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 409 transitions. [2024-11-28 04:07:26,131 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 409 transitions. Word has length 85 [2024-11-28 04:07:26,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:26,132 INFO L471 AbstractCegarLoop]: Abstraction has 312 states and 409 transitions. [2024-11-28 04:07:26,132 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.25) internal successors, (53), 4 states have internal predecessors, (53), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:07:26,132 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 409 transitions. [2024-11-28 04:07:26,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-28 04:07:26,135 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:26,135 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:26,146 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-28 04:07:26,339 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-11-28 04:07:26,339 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:26,340 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:26,340 INFO L85 PathProgramCache]: Analyzing trace with hash -165837548, now seen corresponding path program 1 times [2024-11-28 04:07:26,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:26,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707374309] [2024-11-28 04:07:26,341 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:26,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:26,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:26,491 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2024-11-28 04:07:26,491 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:26,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707374309] [2024-11-28 04:07:26,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707374309] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:26,492 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1617401236] [2024-11-28 04:07:26,492 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:26,492 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:26,492 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:26,496 INFO L229 MonitoredProcess]: Starting monitored process 17 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:26,500 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-28 04:07:26,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:26,785 INFO L256 TraceCheckSpWp]: Trace formula consists of 396 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-28 04:07:26,787 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:26,797 INFO L134 CoverageAnalysis]: Checked inductivity of 47 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2024-11-28 04:07:26,798 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:26,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1617401236] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:26,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:26,798 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2024-11-28 04:07:26,798 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2103326281] [2024-11-28 04:07:26,798 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:26,799 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-28 04:07:26,799 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:26,799 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-28 04:07:26,799 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:07:26,800 INFO L87 Difference]: Start difference. First operand 312 states and 409 transitions. Second operand has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:07:26,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:26,863 INFO L93 Difference]: Finished difference Result 406 states and 544 transitions. [2024-11-28 04:07:26,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-28 04:07:26,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 85 [2024-11-28 04:07:26,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:26,865 INFO L225 Difference]: With dead ends: 406 [2024-11-28 04:07:26,866 INFO L226 Difference]: Without dead ends: 183 [2024-11-28 04:07:26,867 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-28 04:07:26,868 INFO L435 NwaCegarLoop]: 80 mSDtfsCounter, 0 mSDsluCounter, 151 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:26,868 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-28 04:07:26,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-28 04:07:26,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 180. [2024-11-28 04:07:26,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 134 states have (on average 1.1940298507462686) internal successors, (160), 141 states have internal predecessors, (160), 29 states have call successors, (29), 12 states have call predecessors, (29), 16 states have return successors, (37), 26 states have call predecessors, (37), 27 states have call successors, (37) [2024-11-28 04:07:26,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 226 transitions. [2024-11-28 04:07:26,906 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 226 transitions. Word has length 85 [2024-11-28 04:07:26,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:26,906 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 226 transitions. [2024-11-28 04:07:26,906 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.5) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-28 04:07:26,906 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 226 transitions. [2024-11-28 04:07:26,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-28 04:07:26,908 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:26,908 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:26,920 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-28 04:07:27,108 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2024-11-28 04:07:27,109 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:27,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:27,110 INFO L85 PathProgramCache]: Analyzing trace with hash -824045214, now seen corresponding path program 1 times [2024-11-28 04:07:27,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:27,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014072808] [2024-11-28 04:07:27,110 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:27,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:27,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:27,517 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 8 proven. 2 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2024-11-28 04:07:27,518 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:27,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014072808] [2024-11-28 04:07:27,518 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014072808] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:27,518 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1566481019] [2024-11-28 04:07:27,518 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:27,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:27,519 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:27,521 INFO L229 MonitoredProcess]: Starting monitored process 18 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:27,524 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-28 04:07:27,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:27,816 INFO L256 TraceCheckSpWp]: Trace formula consists of 429 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-11-28 04:07:27,819 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:27,993 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 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 16 [2024-11-28 04:07:28,001 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:07:28,002 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-11-28 04:07:28,102 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:07:28,107 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-11-28 04:07:28,108 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 23 [2024-11-28 04:07:28,114 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 11 [2024-11-28 04:07:28,657 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 30 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-28 04:07:28,657 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:33,259 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:07:33,259 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 1 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 35 [2024-11-28 04:07:33,284 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:07:33,285 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 171 treesize of output 185 [2024-11-28 04:07:33,293 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 184 treesize of output 176 [2024-11-28 04:07:33,430 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-28 04:07:33,464 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 6 treesize of output 4 [2024-11-28 04:07:33,504 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:07:33,505 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 23 treesize of output 27 [2024-11-28 04:07:33,556 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-11-28 04:07:33,556 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 78 treesize of output 78 [2024-11-28 04:07:33,871 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 0 proven. 23 refuted. 0 times theorem prover too weak. 25 trivial. 0 not checked. [2024-11-28 04:07:33,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1566481019] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:33,871 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:33,872 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 12, 11] total 25 [2024-11-28 04:07:33,872 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480798307] [2024-11-28 04:07:33,872 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:33,873 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-11-28 04:07:33,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:33,874 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-11-28 04:07:33,874 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=517, Unknown=7, NotChecked=0, Total=600 [2024-11-28 04:07:33,875 INFO L87 Difference]: Start difference. First operand 180 states and 226 transitions. Second operand has 25 states, 24 states have (on average 5.041666666666667) internal successors, (121), 24 states have internal predecessors, (121), 9 states have call successors, (24), 3 states have call predecessors, (24), 7 states have return successors, (23), 7 states have call predecessors, (23), 9 states have call successors, (23) [2024-11-28 04:07:36,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:36,170 INFO L93 Difference]: Finished difference Result 281 states and 362 transitions. [2024-11-28 04:07:36,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-11-28 04:07:36,172 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 5.041666666666667) internal successors, (121), 24 states have internal predecessors, (121), 9 states have call successors, (24), 3 states have call predecessors, (24), 7 states have return successors, (23), 7 states have call predecessors, (23), 9 states have call successors, (23) Word has length 86 [2024-11-28 04:07:36,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:36,174 INFO L225 Difference]: With dead ends: 281 [2024-11-28 04:07:36,175 INFO L226 Difference]: Without dead ends: 211 [2024-11-28 04:07:36,176 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 189 GetRequests, 157 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=137, Invalid=978, Unknown=7, NotChecked=0, Total=1122 [2024-11-28 04:07:36,177 INFO L435 NwaCegarLoop]: 110 mSDtfsCounter, 79 mSDsluCounter, 1607 mSDsCounter, 0 mSdLazyCounter, 1225 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 1717 SdHoareTripleChecker+Invalid, 1247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1225 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:36,177 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 1717 Invalid, 1247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1225 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:07:36,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 211 states. [2024-11-28 04:07:36,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 211 to 185. [2024-11-28 04:07:36,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 138 states have (on average 1.1956521739130435) internal successors, (165), 146 states have internal predecessors, (165), 29 states have call successors, (29), 12 states have call predecessors, (29), 17 states have return successors, (39), 26 states have call predecessors, (39), 27 states have call successors, (39) [2024-11-28 04:07:36,224 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 233 transitions. [2024-11-28 04:07:36,225 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 233 transitions. Word has length 86 [2024-11-28 04:07:36,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:36,225 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 233 transitions. [2024-11-28 04:07:36,226 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 5.041666666666667) internal successors, (121), 24 states have internal predecessors, (121), 9 states have call successors, (24), 3 states have call predecessors, (24), 7 states have return successors, (23), 7 states have call predecessors, (23), 9 states have call successors, (23) [2024-11-28 04:07:36,228 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 233 transitions. [2024-11-28 04:07:36,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-28 04:07:36,229 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:36,229 INFO L218 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:36,241 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:36,430 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-28 04:07:36,430 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:36,431 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:36,431 INFO L85 PathProgramCache]: Analyzing trace with hash -2130382750, now seen corresponding path program 1 times [2024-11-28 04:07:36,431 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:36,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [739986293] [2024-11-28 04:07:36,431 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:36,431 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:36,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:36,834 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-11-28 04:07:36,835 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:36,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [739986293] [2024-11-28 04:07:36,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [739986293] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:36,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2100148336] [2024-11-28 04:07:36,835 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:36,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:36,836 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:36,839 INFO L229 MonitoredProcess]: Starting monitored process 19 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:36,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-28 04:07:37,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:37,143 INFO L256 TraceCheckSpWp]: Trace formula consists of 422 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-28 04:07:37,146 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:37,350 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 46 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2024-11-28 04:07:37,351 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:37,351 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2100148336] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:37,351 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:37,351 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [10] total 16 [2024-11-28 04:07:37,351 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509746132] [2024-11-28 04:07:37,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:37,352 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-28 04:07:37,352 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:37,353 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-28 04:07:37,353 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=205, Unknown=0, NotChecked=0, Total=240 [2024-11-28 04:07:37,353 INFO L87 Difference]: Start difference. First operand 185 states and 233 transitions. Second operand has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:07:37,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:37,713 INFO L93 Difference]: Finished difference Result 315 states and 394 transitions. [2024-11-28 04:07:37,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-28 04:07:37,713 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) Word has length 88 [2024-11-28 04:07:37,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:37,716 INFO L225 Difference]: With dead ends: 315 [2024-11-28 04:07:37,716 INFO L226 Difference]: Without dead ends: 188 [2024-11-28 04:07:37,717 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=60, Invalid=360, Unknown=0, NotChecked=0, Total=420 [2024-11-28 04:07:37,718 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 93 mSDsluCounter, 251 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 93 SdHoareTripleChecker+Valid, 310 SdHoareTripleChecker+Invalid, 169 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:37,718 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [93 Valid, 310 Invalid, 169 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-28 04:07:37,719 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-28 04:07:37,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 182. [2024-11-28 04:07:37,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 182 states, 136 states have (on average 1.1838235294117647) internal successors, (161), 143 states have internal predecessors, (161), 29 states have call successors, (29), 12 states have call predecessors, (29), 16 states have return successors, (37), 26 states have call predecessors, (37), 27 states have call successors, (37) [2024-11-28 04:07:37,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 182 states to 182 states and 227 transitions. [2024-11-28 04:07:37,776 INFO L78 Accepts]: Start accepts. Automaton has 182 states and 227 transitions. Word has length 88 [2024-11-28 04:07:37,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:37,776 INFO L471 AbstractCegarLoop]: Abstraction has 182 states and 227 transitions. [2024-11-28 04:07:37,777 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 9.571428571428571) internal successors, (67), 8 states have internal predecessors, (67), 4 states have call successors, (9), 2 states have call predecessors, (9), 3 states have return successors, (8), 3 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-28 04:07:37,777 INFO L276 IsEmpty]: Start isEmpty. Operand 182 states and 227 transitions. [2024-11-28 04:07:37,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-28 04:07:37,780 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:37,780 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-28 04:07:37,791 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2024-11-28 04:07:37,983 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-28 04:07:37,984 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:37,984 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:37,984 INFO L85 PathProgramCache]: Analyzing trace with hash 437522376, now seen corresponding path program 1 times [2024-11-28 04:07:37,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:37,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2047007416] [2024-11-28 04:07:37,985 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:37,985 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:38,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:38,590 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 78 trivial. 0 not checked. [2024-11-28 04:07:38,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2047007416] [2024-11-28 04:07:38,591 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2047007416] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:38,591 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464230109] [2024-11-28 04:07:38,591 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:38,592 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:38,592 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:38,594 INFO L229 MonitoredProcess]: Starting monitored process 20 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:38,598 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-28 04:07:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:38,946 INFO L256 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-11-28 04:07:38,950 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:39,022 INFO L134 CoverageAnalysis]: Checked inductivity of 90 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2024-11-28 04:07:39,023 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:39,023 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464230109] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:39,023 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:39,023 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [7] total 9 [2024-11-28 04:07:39,023 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644262702] [2024-11-28 04:07:39,023 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:39,024 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-28 04:07:39,024 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:39,024 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-28 04:07:39,025 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:07:39,025 INFO L87 Difference]: Start difference. First operand 182 states and 227 transitions. Second operand has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 04:07:39,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:39,175 INFO L93 Difference]: Finished difference Result 292 states and 367 transitions. [2024-11-28 04:07:39,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-28 04:07:39,175 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) Word has length 110 [2024-11-28 04:07:39,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:39,178 INFO L225 Difference]: With dead ends: 292 [2024-11-28 04:07:39,178 INFO L226 Difference]: Without dead ends: 182 [2024-11-28 04:07:39,179 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 116 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-28 04:07:39,180 INFO L435 NwaCegarLoop]: 75 mSDtfsCounter, 0 mSDsluCounter, 359 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 434 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:39,180 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 434 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-28 04:07:39,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182 states. [2024-11-28 04:07:39,227 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182 to 180. [2024-11-28 04:07:39,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 135 states have (on average 1.1851851851851851) internal successors, (160), 141 states have internal predecessors, (160), 29 states have call successors, (29), 12 states have call predecessors, (29), 15 states have return successors, (33), 26 states have call predecessors, (33), 27 states have call successors, (33) [2024-11-28 04:07:39,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 222 transitions. [2024-11-28 04:07:39,230 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 222 transitions. Word has length 110 [2024-11-28 04:07:39,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:39,230 INFO L471 AbstractCegarLoop]: Abstraction has 180 states and 222 transitions. [2024-11-28 04:07:39,230 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 11.166666666666666) internal successors, (67), 6 states have internal predecessors, (67), 3 states have call successors, (10), 2 states have call predecessors, (10), 4 states have return successors, (9), 3 states have call predecessors, (9), 3 states have call successors, (9) [2024-11-28 04:07:39,230 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 222 transitions. [2024-11-28 04:07:39,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:07:39,232 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:39,232 INFO L218 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:39,245 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-28 04:07:39,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,20 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:39,437 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:39,438 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:39,438 INFO L85 PathProgramCache]: Analyzing trace with hash 216757064, now seen corresponding path program 2 times [2024-11-28 04:07:39,438 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:39,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509998280] [2024-11-28 04:07:39,441 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:07:39,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:39,585 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:07:39,589 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:07:42,611 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 30 proven. 43 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-28 04:07:42,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:42,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509998280] [2024-11-28 04:07:42,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509998280] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:42,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1621752630] [2024-11-28 04:07:42,611 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-28 04:07:42,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:42,611 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:42,613 INFO L229 MonitoredProcess]: Starting monitored process 21 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:42,622 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-28 04:07:42,957 INFO L229 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-28 04:07:42,957 INFO L230 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-28 04:07:42,966 INFO L256 TraceCheckSpWp]: Trace formula consists of 512 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-11-28 04:07:42,972 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:43,056 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-28 04:07:43,067 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 15 [2024-11-28 04:07:46,434 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 59 proven. 0 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-11-28 04:07:46,435 INFO L308 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-28 04:07:46,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1621752630] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-28 04:07:46,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-28 04:07:46,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [20] total 32 [2024-11-28 04:07:46,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713339631] [2024-11-28 04:07:46,435 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-28 04:07:46,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-11-28 04:07:46,438 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:46,440 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-11-28 04:07:46,441 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=893, Unknown=0, NotChecked=0, Total=992 [2024-11-28 04:07:46,441 INFO L87 Difference]: Start difference. First operand 180 states and 222 transitions. Second operand has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:07:48,787 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:48,787 INFO L93 Difference]: Finished difference Result 239 states and 292 transitions. [2024-11-28 04:07:48,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-28 04:07:48,788 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) Word has length 113 [2024-11-28 04:07:48,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:48,798 INFO L225 Difference]: With dead ends: 239 [2024-11-28 04:07:48,798 INFO L226 Difference]: Without dead ends: 189 [2024-11-28 04:07:48,800 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 141 GetRequests, 94 SyntacticMatches, 10 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=167, Invalid=1315, Unknown=0, NotChecked=0, Total=1482 [2024-11-28 04:07:48,804 INFO L435 NwaCegarLoop]: 59 mSDtfsCounter, 36 mSDsluCounter, 725 mSDsCounter, 0 mSdLazyCounter, 608 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 784 SdHoareTripleChecker+Invalid, 626 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 608 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:48,805 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 784 Invalid, 626 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 608 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-28 04:07:48,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-11-28 04:07:48,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 184. [2024-11-28 04:07:48,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 138 states have (on average 1.181159420289855) internal successors, (163), 144 states have internal predecessors, (163), 29 states have call successors, (29), 12 states have call predecessors, (29), 16 states have return successors, (35), 27 states have call predecessors, (35), 27 states have call successors, (35) [2024-11-28 04:07:48,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 227 transitions. [2024-11-28 04:07:48,918 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 227 transitions. Word has length 113 [2024-11-28 04:07:48,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:48,919 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 227 transitions. [2024-11-28 04:07:48,919 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 3.7222222222222223) internal successors, (67), 16 states have internal predecessors, (67), 6 states have call successors, (10), 3 states have call predecessors, (10), 5 states have return successors, (10), 7 states have call predecessors, (10), 5 states have call successors, (10) [2024-11-28 04:07:48,923 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 227 transitions. [2024-11-28 04:07:48,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-28 04:07:48,931 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:48,932 INFO L218 NwaCegarLoop]: trace histogram [5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:48,948 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-28 04:07:49,132 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,21 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:49,132 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:49,133 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:49,133 INFO L85 PathProgramCache]: Analyzing trace with hash -1891772092, now seen corresponding path program 1 times [2024-11-28 04:07:49,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:49,133 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1929616824] [2024-11-28 04:07:49,134 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:49,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:50,346 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 6 proven. 69 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-28 04:07:50,346 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:07:50,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1929616824] [2024-11-28 04:07:50,346 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1929616824] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:07:50,346 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939761615] [2024-11-28 04:07:50,346 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:50,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:07:50,347 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:07:50,349 INFO L229 MonitoredProcess]: Starting monitored process 22 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:07:50,350 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-28 04:07:50,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:07:50,698 INFO L256 TraceCheckSpWp]: Trace formula consists of 494 conjuncts, 75 conjuncts are in the unsatisfiable core [2024-11-28 04:07:50,703 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:07:51,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 13 treesize of output 1 [2024-11-28 04:07:51,677 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 15 treesize of output 7 [2024-11-28 04:07:51,684 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 89 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-28 04:07:51,685 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:07:52,783 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 103 treesize of output 95 [2024-11-28 04:07:52,794 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 53 treesize of output 49 [2024-11-28 04:07:52,800 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 99 treesize of output 91 [2024-11-28 04:07:53,036 INFO L134 CoverageAnalysis]: Checked inductivity of 99 backedges. 29 proven. 26 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-28 04:07:53,036 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939761615] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:07:53,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:07:53,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 19, 16] total 43 [2024-11-28 04:07:53,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800737694] [2024-11-28 04:07:53,037 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:07:53,038 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-28 04:07:53,038 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:07:53,040 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-28 04:07:53,040 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=128, Invalid=1678, Unknown=0, NotChecked=0, Total=1806 [2024-11-28 04:07:53,041 INFO L87 Difference]: Start difference. First operand 184 states and 227 transitions. Second operand has 43 states, 40 states have (on average 4.125) internal successors, (165), 40 states have internal predecessors, (165), 15 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (25), 12 states have call predecessors, (25), 15 states have call successors, (25) [2024-11-28 04:07:59,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-28 04:07:59,284 INFO L93 Difference]: Finished difference Result 624 states and 900 transitions. [2024-11-28 04:07:59,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-28 04:07:59,284 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 40 states have (on average 4.125) internal successors, (165), 40 states have internal predecessors, (165), 15 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (25), 12 states have call predecessors, (25), 15 states have call successors, (25) Word has length 113 [2024-11-28 04:07:59,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-28 04:07:59,289 INFO L225 Difference]: With dead ends: 624 [2024-11-28 04:07:59,289 INFO L226 Difference]: Without dead ends: 412 [2024-11-28 04:07:59,292 INFO L434 NwaCegarLoop]: 0 DeclaredPredicates, 290 GetRequests, 209 SyntacticMatches, 1 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1269 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=729, Invalid=5913, Unknown=0, NotChecked=0, Total=6642 [2024-11-28 04:07:59,293 INFO L435 NwaCegarLoop]: 96 mSDtfsCounter, 355 mSDsluCounter, 1940 mSDsCounter, 0 mSdLazyCounter, 2465 mSolverCounterSat, 185 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 355 SdHoareTripleChecker+Valid, 2036 SdHoareTripleChecker+Invalid, 2650 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 185 IncrementalHoareTripleChecker+Valid, 2465 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2024-11-28 04:07:59,294 INFO L436 NwaCegarLoop]: SdHoareTripleChecker [355 Valid, 2036 Invalid, 2650 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [185 Valid, 2465 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2024-11-28 04:07:59,295 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 412 states. [2024-11-28 04:07:59,409 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 412 to 302. [2024-11-28 04:07:59,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 302 states, 231 states have (on average 1.2424242424242424) internal successors, (287), 234 states have internal predecessors, (287), 48 states have call successors, (48), 14 states have call predecessors, (48), 22 states have return successors, (76), 53 states have call predecessors, (76), 46 states have call successors, (76) [2024-11-28 04:07:59,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 302 states to 302 states and 411 transitions. [2024-11-28 04:07:59,416 INFO L78 Accepts]: Start accepts. Automaton has 302 states and 411 transitions. Word has length 113 [2024-11-28 04:07:59,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-28 04:07:59,417 INFO L471 AbstractCegarLoop]: Abstraction has 302 states and 411 transitions. [2024-11-28 04:07:59,417 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 40 states have (on average 4.125) internal successors, (165), 40 states have internal predecessors, (165), 15 states have call successors, (26), 2 states have call predecessors, (26), 7 states have return successors, (25), 12 states have call predecessors, (25), 15 states have call successors, (25) [2024-11-28 04:07:59,417 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states and 411 transitions. [2024-11-28 04:07:59,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-28 04:07:59,421 INFO L210 NwaCegarLoop]: Found error trace [2024-11-28 04:07:59,422 INFO L218 NwaCegarLoop]: trace histogram [4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-28 04:07:59,433 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-28 04:07:59,622 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-28 04:07:59,622 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-28 04:07:59,623 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-28 04:07:59,623 INFO L85 PathProgramCache]: Analyzing trace with hash -780604338, now seen corresponding path program 1 times [2024-11-28 04:07:59,623 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-28 04:07:59,623 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040325536] [2024-11-28 04:07:59,623 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:07:59,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-28 04:07:59,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:00,199 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 9 proven. 15 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2024-11-28 04:08:00,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-28 04:08:00,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040325536] [2024-11-28 04:08:00,200 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040325536] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-28 04:08:00,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [310325448] [2024-11-28 04:08:00,200 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-28 04:08:00,200 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-28 04:08:00,200 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 [2024-11-28 04:08:00,202 INFO L229 MonitoredProcess]: Starting monitored process 23 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-28 04:08:00,208 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_2d24c53e-a557-4ab2-95b4-9d616c64ca01/bin/uautomizer-verify-aQ6SnzHsRB/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-28 04:08:00,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-28 04:08:00,556 INFO L256 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 77 conjuncts are in the unsatisfiable core [2024-11-28 04:08:00,560 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2024-11-28 04:08:00,643 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 8 treesize of output 1 [2024-11-28 04:08:00,647 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 8 treesize of output 1 [2024-11-28 04:08:04,938 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_10| Int) (|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_10| Int)) (not (= (+ 16 |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_10|) (select (select |c_#memory_$Pointer$#2.offset| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_10|) |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_10|)))) (exists ((|v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_10| Int) (|v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_10| Int)) (not (= |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_10| (select (select |c_#memory_$Pointer$#2.base| |v_aws_linked_list_is_valid_#in~list#1.base_BEFORE_CALL_10|) |v_aws_linked_list_is_valid_#in~list#1.offset_BEFORE_CALL_10|))))) is different from true [2024-11-28 04:08:09,156 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (not (= 16 (select (select |c_#memory_$Pointer$#2.offset| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_80|) 0)))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_80| Int)) (not (= |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_80| (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_harness_~#list~0#1.base_BEFORE_CALL_80|) 0))))) is different from true [2024-11-28 04:08:13,276 WARN L873 $PredicateComparison]: unable to prove that (or (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_31| Int)) (not (= 16 (select (select |c_#memory_$Pointer$#2.offset| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_31|) 0)))) (exists ((|v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_31| Int)) (not (= (select (select |c_#memory_$Pointer$#2.base| |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_31|) 0) |v_ULTIMATE.start_aws_linked_list_rend_~list#1.base_BEFORE_CALL_31|)))) is different from true [2024-11-28 04:08:37,931 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 64 proven. 20 refuted. 0 times theorem prover too weak. 1 trivial. 7 not checked. [2024-11-28 04:08:37,931 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2024-11-28 04:08:43,294 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 4 proven. 51 refuted. 0 times theorem prover too weak. 37 trivial. 0 not checked. [2024-11-28 04:08:43,294 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [310325448] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-28 04:08:43,294 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-28 04:08:43,294 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 19, 14] total 36 [2024-11-28 04:08:43,294 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599712416] [2024-11-28 04:08:43,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-28 04:08:43,295 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-11-28 04:08:43,295 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-28 04:08:43,296 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-11-28 04:08:43,297 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=936, Unknown=10, NotChecked=192, Total=1260 [2024-11-28 04:08:43,297 INFO L87 Difference]: Start difference. First operand 302 states and 411 transitions. Second operand has 36 states, 34 states have (on average 4.794117647058823) internal successors, (163), 33 states have internal predecessors, (163), 13 states have call successors, (24), 5 states have call predecessors, (24), 9 states have return successors, (25), 11 states have call predecessors, (25), 13 states have call successors, (25) [2024-11-28 04:08:47,475 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:08:51,494 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:08:55,507 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:08:59,526 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:03,534 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:07,549 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:11,560 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:15,563 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:19,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:23,589 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:27,606 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:31,613 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:35,616 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:47,680 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:51,683 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:55,696 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:09:59,708 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:10:03,710 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:10:07,722 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:10:11,730 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:10:15,933 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0] [2024-11-28 04:10:19,935 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [0]